Colocation Hosting Italia (2026) - Superiore 11 Fornitori a confronto

La colocation italiana ha due realtà. Milano ospita l’ecosistema dei vettori del Paese attraverso MIX, Borsa Italiana, e 200+ operatori raggruppati intorno a via Caldera. Ovunque altro, la colocation è un mix sparso di ISP regionali con strutture singole e prezzi opachi. This comparison covers the Milan-centric carrier-neutral hubs, the large-campus plays like Aruba’s 200,000 sqm Bergamo site, and the SMB-friendly per-U operators that publish real prices instead of “contact sales.”

Risposta rapida: For true Uptime Institute Tier IV on a Milan campus, Wiit is the only verified option. For the broadest Italian footprint and transparent entry pricing, Aruba’s Global Cloud Data Center runs from EUR 59/month. For retail micro-colocation with published per-U rates, Server.it starts at EUR 6.90/U and Moviement lists EUR 49/month for a single 1U. For carrier neutrality and MIX access, Equinix ML3 and CDLAN C21 are the benchmark picks. Skip STACK Infrastructure unless you’re buying wholesale MW; their Milan footprint is hyperscale-only.

Ultima revisione: aprile 2026. Facility specs, certificazioni, and post-merger corporate status verified.

Come abbiamo selezionato questi fornitori

Colocation research is fundamentally different from shared-hosting comparisons. Rack pricing is almost never public in enterprise colo because contracts bundle power, si collega in modo incrociato, mani remote, and commit-level discounts into custom quotes. Treating “contattare l'ufficio vendite” as a red flag would disqualify most of the Italian market. Anziché, we weighted verified certifications, facility capacity in MW, published PUE where available, carrier-neutral status, and proximity to MIX Milan.

Our exclusion thresholds were strict in three places. Primo, the provider had to actually operate a colocation product, not just bundle it with managed hosting as an afterthought. One original source-list entry (Promo.it) was dropped because no evidence surfaced that it runs a real data center; the domain didn’t appear in any Italian DC registry, and the website itself returned SSL errors during research. Secondo, any “Tier IV compliant” self-declaration was noted but not treated as equivalent to Uptime Institute certification. Only Wiit MIL1 and MIL2 hold true Uptime Institute Tier IV. Terzo, STACK Infrastructure is included for completeness but flagged as wholesale-only; retail buyers should skip directly to other entries.

Sources included official provider pages verified in April 2026, datacentermap.com, datacenters.com, baxtel.com industry registries, and Uptime Institute’s own Italian awards list. We did not run on-site audits or benchmark power draw under load. One corporate-status change worth flagging: Asterion acquired Irideos and merged it with Retelit in February 2026, so the Avalon Campus brand now sits under the combined Retelit group. Older guides citing “Irideos Avalon” still point to the same facilities, but the company name has changed.

Aruba.it – Italy’s Largest Footprint, From EUR 59/Month Entry

From EUR 59/month + I.V.A. | IT1/IT2 Arezzo, IT3 Ponte San Pietro, IT4 Rome | ANSI/TIA-942 Rating 4

200,000 metri quadrati. That’s the campus area at Aruba’s IT3 Global Cloud Data Center in Ponte San Pietro (Bergamo), Europe’s largest single-site DC development. Total facility power is 60 MW, powered in part by an on-site hydroelectric plant Aruba owns directly. Against Wiit’s 350 sqm MIL1 facility, IT3 is roughly 570x larger by floor area. The footprint isn’t just marketing: it makes Aruba the default pick for Italian workloads that need large-scale capacity without shopping across vendors.

Entry colocation lists at EUR 59/month + I.V.A., with additional rack units at EUR 7.50/month and extra 100W power blocks at EUR 33.90/month. That’s transparent for the entry tier and rare at Aruba’s scale. True enterprise deployments (quarto di rack, mezzo rack, scaffale pieno, custom power) require a quote. Certifications stack well: ANSI/TIA-942 Rating 4 on IT1, IT3, and IT4; ISO 27001, ISO 9001, ISO 22237, and CISPE compliance; Climate Neutral Data Centre Pact alignment. SLA is 99.95% on network and 100% on power and cooling. Il principale compromesso: Arezzo and Bergamo both sit outside Milan’s MIX carrier ecosystem, so latency-sensitive peering workloads cost more in hops than a CDLAN or Equinix Milan deployment.

• Professionisti:
• 200,000 sqm IT3 campus (Europe’s largest)
• Published entry pricing (EUR 59/month base)
• On-site hydroelectric plant
• ANSI/TIA-942 Rating 4 on IT1/IT3/IT4
• Contro:
• Arezzo and Bergamo are outside MIX Milan
• Enterprise deals quote-based only
• Not carrier-neutral in the Equinix sense

Prezzi: EUR 59/mo + VAT entry | Additional U at EUR 7.50/mo | +100W at EUR 33.90/mo.
Meglio per: Italian enterprises needing large-capacity colo with transparent SMB-entry pricing and ANSI/TIA-942 Rating 4 conformità.
Salta se: Milan MIX peering is a hard requirement.

Verdetto: Scegliere aruba when campus scale and hydroelectric sustainability matter and MIX is not a dealbreaker. For MIX-direct Milan colo, Equinix ML3 o CDLAN C21. For true Uptime Institute Tier IV, Wiit.

Moviement – Padova Micro-Colo at EUR 49/Month for 1U

From EUR 49/month (1U) | Padova | Self-managed hardware welcome

Where most Italian colocation operators hide pricing behind sales calls, Moviement publishes the actual numbers on a housing page. 1U at EUR 49/month, 2U at EUR 67/month, 4U at EUR 114/month. All include dual 220V feeds and 200-250W base power. Contro Server.it’s EUR 6.90 per additional U, Moviement’s all-in 1U is higher per-unit but bundles the base power included, whereas Server.it charges EUR 32/month per additional 100W block separately. The math comes out close for a single small box; Server.it wins at small density, Moviement wins for transparent single-U budgeting.

La limitazione onesta: Moviement’s public documentation is thin. No published Tier certification. No ISO 27001 on the housing page. No SLA percentage. No PUE figure. Certifications may exist internally, but a buyer doing compliance due diligence can’t cite them from a public source. For a sysadmin running a personal or small-business single server in Padova without regulated-industry requirements, va bene. For GDPR DPO audits, assistenza sanitaria, or banking workloads, this is the wrong facility.

• Professionisti:
• EUR 49/month 1U published transparently
• Dual 220V feeds on entry tier
• Single-city Padova presence keeps costs low
• Contro:
• No published Tier certification
• No ISO 27001 listed publicly
• No SLA percentage stated
• Single-facility (no DR/BC option)

Prezzi: EUR 49/mo (1U) | EUR 67/mo (2U) | EUR 114/mo (4U).
Meglio per: Small Italian businesses or self-hosted sysadmins in Veneto running a single non-regulated workload.
Salta se: You need compliance paper trail or Milan MIX access.

Verdetto: Scegliere Moviement for single-server deployments where price transparency matters more than certification. For similar transparency with more certifications, Server.it. For enterprise compliance, aruba o Wiit.

Server.it – Milan Retail Colo With Published Per-U Pricing

EUR 6.90/U + EUR 32/100W | Milano | 8U entry includes 3000W

Imagine you’re a Milan software agency with two app servers and a staging box. Total hardware fits inside 5U. You don’t need MIX peering, you don’t need a full rack, and you don’t want to pay Equinix enterprise pricing. Server.it’s entry colocation fits this scenario: up to 8U with 3000W power included as a starter package, additional units at EUR 6.90/month each, and extra 100W blocks at EUR 32/month. Against Aruba’s EUR 7.50/U + EUR 33.90/100W, Server.it is entro 8% on both unit-add and power-add pricing.

The upside is transparency and Milan location. The downsides are disclosure gaps. Server.it’s public pages don’t specify a Tier certification number, PUE, or contractual SLA percentage. Carrier connectivity is described as “blended Italian + foreign” rather than pure carrier-neutral meet-me. For a small Milan deployment that needs city-proximity without enterprise overhead, it’s a practical fit. For a sales pitch to a regulated client that wants citation-ready Tier III/IV evidence, it’s the wrong fit; Wiit, IT.NET, or Aruba’s ANSI/TIA-942 Rating 4 DCs give you the paper trail.

• Professionisti:
• EUR 6.90/U published additional-unit pricing
• 3000W power bundled in 8U entry
• Milan location (proximity to customers and MIX ecosystem)
• 3-minimo del mese, first month free
• Contro:
• No published Tier certification
• Blended carrier connectivity (not meet-me neutral)
• No stated SLA percentage

Prezzi: EUR 6.90/U additional | EUR 32/100W additional | 8U with 3000W entry.
Meglio per: Milan SMBs deploying 1-8U of hardware with a short minimum commitment.
Salta se: You need carrier-neutral MIX direct or enterprise compliance certifications.

Verdetto: Scegliere Server.it when Milan proximity and transparent per-U pricing matter more than cert paper trail. For more certification depth at similar scale, Seeweb. For MIX direct access, CDLAN o Equinix.

Criticalcase – Tier IV Claim Plus 1 Tbps DDoS Protection

7 DCs across Europe | Turin HQ + Milano + Francoforte + Amsterdam + Parigi + Londra | Livello IV + ISO 27001

Criticalcase’s infrastructure story stands out for vertical integration. The company runs its own autonomous system (AS48815), operates a 6,000-kilometer proprietary MPLS ring connecting seven European data centers, and layers 1 Tbps of volumetric DDoS mitigation across the whole fleet. That’s an unusual profile for Italian colocation, which is usually done by either pure ISPs or pure real-estate operators. Certifications include Tier IV and ISO 27001, sostenuto da a 99.99% LATTUGA. Contro Quello di Aruba 99.95% SLA della rete, Criticalcase claims four-nines, and the DDoS ceiling sits above most colo-only competitors’ undisclosed mitigation add-ons.

The trade-off is positioning. Criticalcase markets itself primarily as a managed multicloud provider, with colocation as one service line among many. If you want rack-and-stack hosting where you own the operating system, install your hypervisor, and want the provider to hand off below-OS responsibilities, Criticalcase works. If you want a pure facility lease with no managed services in the contract, their commercial motion is less practiced there. Pricing is fully quote-based; public pages don’t publish rack rates, power blocks, or cross-connect fees.

• Professionisti:
• 1 Tbps DDoS mitigation baked into network
• Proprietario 6,000 km MPLS ring + AS48815
• 99.99% SLA with Tier IV + ISO 27001
• Turin HQ + 6 European DC outposts
• Contro:
• Primarily a managed-services vendor, not pure colo
• Zero published rack pricing
• “Livello IV” label not independently verified as Uptime Institute

Prezzi: Contact for quote. Tre livelli: Single 85W unit / Half rack / Full rack.
Meglio per: Italian enterprises wanting colocation bundled with managed multicloud and DDoS protection under one vendor.
Salta se: You want a clean hardware-only facility lease.

Verdetto: Scegliere Criticalcase when the managed-services bundle matches your team shape and integrated DDoS is valuable. For pure colocation with verified Uptime Institute Tier IV, Wiit. For the cheapest retail entry in Milan, Server.it.

IT.NET – Fault-Tolerant Tier IV With Near-Zero Price Transparency

Milan Assago + Milan Rozzano + Rome Tor Cervara + Rome Tiburtino | TIA-942 Rating 4

IT.NET is the Italian colocation operator most loudly certified and least visibly priced. Their Milan Assago facility holds ANSI/TIA-942-A-2014 Rating 4 (Fault Tolerant), matching the rarified tier Aruba and Wiit operate at. The network heritage is deep: IT.NET started as an Italian ISP in 1994, and the Assago facility is verified carrier-neutral on third-party directories. Two Milan sites plus two Rome sites give customers natural DR/BC pairing within a single vendor, which matches the dual-region pattern CDLAN offers with C21 and E100, though IT.NET’s Milan+Rome footprint adds a second Milan location that CDLAN doesn’t have.

What you won’t find on IT.NET’s own web presence: rack pricing, per-kW costs, cross-connect fees, detailed SLA percentages, or PUE numbers. Much of what’s documented here comes from third-party DC registries (datacentermap.com, datacenterplatform.com) rather than IT.NET’s primary marketing. The contrast with Aruba is stark: both certify at Rating 4, but Aruba publishes entry pricing and IT.NET does not. For an enterprise with a dedicated procurement team that runs RFPs routinely, that’s not a problem. For a smaller buyer who wants to benchmark without a sales process, IT.NET is frustrating.

• Professionisti:
• TIA-942 Rating 4 (Fault Tolerant) Milano + Roma
• Carrier-neutral Assago facility
• Milano + Rome dual-region coverage
• ISP heritage (fondato 1994) with strong connectivity pedigree
• Contro:
• Zero public pricing, no published SLA percentages
• Primary website non-responsive to automated fetch
• Brand profile lower than Aruba despite comparable certification

Prezzi: Contact for quote.
Meglio per: Enterprises running active RFP processes that can absorb an opaque sales cycle.
Salta se: You need benchmarkable pricing before talking to sales.

Verdetto: Scegliere IT.NET when Rating 4 Fault Tolerant + carrier-neutral Milan + Rome dual-site is the requirement. For the same Fault Tolerant certification plus published entry pricing, aruba. For Uptime Institute Tier IV specifically, Wiit.

Seeweb – Italian-Owned, ISO-Heavy, ACN-Qualified

Milano 1 (500 kW, 1,000 sqm) + Frosinone 1 (1,000 kW) | PUE ~1.3 | ACN-qualified CSP

Seeweb earns a slot for a specific buyer profile: Italian public administration and regulated-industry customers who need ACN (Agenzia per la Cybersicurezza Nazionale) qualification plus a dense ISO certification stack. L'azienda detiene la certificazione ISO 27001:2022, ISO 27017, ISO 27018, ISO 20000-1, ISO 22301, ISO 14001, ISO 9001, CSA STAR L1, CISPE, SAP Certified, and ACN qualification. That’s more ISO certs than any other provider on this list. Published seasonal PUE sits around 1.3 across both Milan and Frosinone facilities, which beats industry averages without exotic cooling tech.

The trade-off is facility size. Milano 1 tappi a 500 kW total facility power, and Frosinone 1 a 1,000 kW. Contro CDLAN’s 3.2 MW useable at C21, Seeweb Milan is about 6.4x smaller in raw capacity. That’s fine for cloud-native workloads and regulated Italian-government contracts; it’s constraining if your deployment is measured in hundreds of kW. No Uptime Institute Tier certification; Seeweb leans on ISO-based assurances instead. Rack pricing is quote-based; the web presence lists managed services, but colocation is available and consistently confirmed by third-party directories.

• Professionisti:
• 10+ Certificazioni ISO including ISO 14001, ISO 22301
• ACN qualification for Italian PA workloads
• Seasonal PUE ~1.3 (above-average efficiency)
• Italian-owned, green-focused positioning
• Contro:
• Milan facility capped at 500 kW
• No Uptime Institute Tier certification
• Quote-based rack pricing

Prezzi: Contact for quote.
Meglio per: PA italiana, SAP workloads, or regulated industries needing deep ISO stack plus ACN qualification.
Salta se: Your deployment needs more than a few hundred kW at a single Milan site.

Verdetto: Scegliere Seeweb for Italian PA or compliance-heavy workloads under ~500 kW. For larger Italian footprint, aruba. For higher-density single-rack at 20 kW+, CDLAN.

Wiit – Only Uptime Institute Tier IV Certified on This List

MIL1 + MIL2 Milan (~350 sqm, ~200 racks each) | Tier IV Design + Tier IV Constructed Facility

Uptime Institute Tier IV. That’s the exclusive line separating Wiit from every other provider here. Both MIL1 and MIL2 carry Tier IV Design Documents and Tier IV Constructed Facility certifications, which are the actual Uptime Institute programs (not to be confused with ANSI/TIA-942 Rating 4, which is a different standard operated by BICSI). Against CDLAN’s self-declared “Tier IV compliant” and Aruba/IT.NET’s TIA-942 Rating 4, Wiit holds the only independently-certified Uptime Institute Tier IV in this comparison. If your compliance team specifically requires Uptime Institute certification (common for SAP HANA production workloads, tier-1 banking, and pharma validated systems), Wiit is the default answer in Italy.

The facility is boutique by scale: di 350 sqm and ~200 racks at MIL1, with MIL2 sharing the same campus at Via Muzio Attendolo detto Sforza. Wiit doesn’t publish MW capacity, PUE, or carrier count on its public marketing pages, which is typical for Tier IV enterprise colo but frustrating for comparison shopping. Rack pricing is fully quote-based. The company also operates Uptime Institute Tier IV in Düsseldorf, enabling cross-country Tier IV EU footprint from a single vendor, which is uncommon in Europe.

• Professionisti:
• Uptime Institute Tier IV (Design + Constructed)
• Only certified Tier IV pure-colo in Italy verified here
• Cross-country Tier IV with Düsseldorf site
• ISO 27001
• Contro:
• Boutique scale (~200 racks per facility)
• No public MW, PUE, or carrier count
• Prezzo solo preventivo

Prezzi: Contact for quote.
Meglio per: SAP HANA, tier-1 banking, validated pharma workloads requiring Uptime Institute Tier IV specifically.
Salta se: Your compliance accepts TIA-942 Rating 4 or ISO 27001-only alternatives.

Verdetto: Scegliere Wiit when Uptime Institute Tier IV is named in your compliance requirement. For TIA-942 Rating 4 at larger campus scale, aruba. For carrier-neutral Milan without the Tier IV premium, CDLAN.

Equinix Milan – Carrier Ecosystem Benchmark, Not a Budget Pick

ML2 + ML3 + ML5 + ML7x | ML3 hosts MIX + Borsa Italiana | Neutrale rispetto al vettore

No serious Italian colocation comparison skips Equinix, and no serious cost comparison recommends it as a budget option. The Milan campus comprises four verified IBX facilities (ML2 in Milan center, ML3 in Basiglio, ML5 on Via Reiss Romoli, and ML7x in Settimo Milanese). ML3 is the critical one: it houses MIX Milan itself and Borsa Italiana (the Italian stock exchange), which makes it the single densest carrier-and-finance interconnection point in the country. Against Retelit Avalon 1’s 165+ operatori, Equinix ML3’s ecosystem is larger by including the exchange itself plus major cloud on-ramps (AWS, Azzurro, GCP).

The price reality: Equinix doesn’t publish rack rates at any IBX globally, and Italian deployments typically run several multiples of retail Italian colo for equivalent space. What you pay for is the interconnection ecosystem, not the facility itself; a single rack at ML3 with three cross-connects to different carriers delivers value that a single rack at Aruba’s Bergamo campus cannot match at any price, because the carriers simply aren’t there. PUE, per-IBX MW, and specific cert-per-site details aren’t publicly disclosed. For a buyer whose workload depends on fast peering with Italian ISPs, content networks, or the finance sector, Equinix is mandatory. For a buyer who just needs hardware in Milan with a generic internet pipe, it’s massively overspecified.

• Professionisti:
• MIX Milan hosted at ML3
• Borsa Italiana co-location at ML3 (finance latency)
• AWS/Azure/GCP on-ramps
• Largest carrier ecosystem in Italy
• Contro:
• Prezzi premium, no transparency
• Overspecified for non-peering workloads
• Per-IBX certifications not individually disclosed

Prezzi: Contact for quote. Expect premium over Italian retail.
Meglio per: Reti, CDN, piattaforme di contenuti, and finance workloads where MIX + Borsa latency matters.
Salta se: You don’t need carrier peering.

Verdetto: Scegliere Equinix ML3 when your workload’s value comes from who you can peer with, not what space costs. For carrier-neutral at lower price, CDLAN C21. For Italian-owned MIX ecosystem alternatives, Retelit Avalon.

CDLAN – Milan Carrier-Neutral With 20 kW Per Rack Density

C21 Milan (3,100 sqm, 6.4 MW redundant) + E100 Rome | Tier IV compliant | Open-IX certified

Where Equinix costs enterprise money and Aruba sits outside MIX, CDLAN occupies the rare Italian middle: vettore neutro, MIX-direct, dense, and Italian-owned. C21 at Via Caldera 21 in Milan runs 3,100 sqm total floorspace with two redundant substations at 3.2 MW each (6.4 MW redundant, ~3.2 MW useable). Rack density reaches 20 kW per rack, which is 100x higher than Moviement’s 200W baseline and solidly in the AI-workload tier. Connectivity includes 2×144-core fiber to MIX Milan’s 200+ operatori, plus TOP-IX and NaMeX peering. The first Italian facility to hold Open-IX certification.

The honest caveat on certifications: CDLAN lists itself as “Tier IV compliant,” which is self-declared rather than Uptime Institute certified. That’s a meaningful distinction if your compliance team cites Uptime Institute specifically. For most enterprise buyers, the combined package (MIX-direct + 20 kW density + 99.995% LATTUGA + 72-hour full-load autonomy + Open-IX) is more than enough technical credibility. The second facility E100 in Rome provides DR/BC pairing with 100 Gbps backbone between the two sites. Rack pricing is quote-based, as with all carrier-neutral facilities at this tier.

• Professionisti:
• Direct fiber to MIX Milan 200+ operatori
• 20 kW per rack density
• 99.995% SLA with 72-hour autonomy
• Open-IX certified (first in Italy)
• Contro:
• “Tier IV compliant” self-declared, not Uptime Institute
• Single Milan site (no Milan-metro redundancy)
• Prezzi basati su preventivo

Prezzi: Contact for quote.
Meglio per: AI workloads, ISP, and CDNs wanting high-density + MIX access without Equinix premium.
Salta se: Uptime Institute Tier IV is a hard compliance requirement.

Verdetto: Scegliere CDLAN C21 when Milan carrier neutrality and high per-rack density matter but Equinix is overspecified. For certified Uptime Institute Tier IV, Wiit. For larger campus capacity, STACK (wholesale only) o aruba.

STACK Infrastructure – Wholesale Hyperscale Only, Skip for Retail Colo

9 Milan campuses, 299 MW total, 148 acres | MW-scale minimum deployments

STACK belongs on this list with an asterisk. Their Milan portfolio runs nine campuses totaling 299 MW across 148 acres, which is roughly 5x Aruba IT3’s 60 MW facility capacity. MIL08 alone is 25 MW; MIL09 is 48 MW; MIL04 campus reaches 60 MW across four buildings. A gennaio 2025, STACK announced two adjacent land parcels for three additional data centers adding 35 MW. By raw footprint, STACK is the largest hyperscale operator in Milan. By commercial motion, it’s not a retail colocation provider. Minimum deployments are typically hundreds of kW to MW-scale, sold to hyperscalers and large enterprises who bring their own carriers.

For a retail buyer asking “where do I put my 4U server?”, the answer is never STACK; the minimum commitment doesn’t fit, the commercial team isn’t organized for it, and the pricing model assumes MW-scale annualized commits. For an AI training cluster buyer asking “where can I colocate a 500-kW GPU deployment in Milan?”, STACK is one of three or four serious answers in the country. PUE, conteggio dei portatori, and certifications aren’t publicly disclosed at the per-facility level, which is typical for wholesale hyperscale. Include STACK in your shortlist only if your workload arrives in multi-rack rows.

• Professionisti:
• 299 MW total Milan footprint
• Purpose-built hyperscale campuses
• Expansion pipeline announced (+35 MW, 3 new buildings)
• Milan metro dominance for AI/training workloads
• Contro:
• Wholesale only, not retail colocation
• MW-scale minimum deployments
• No published certifications or carrier count

Prezzi: Wholesale quote only. Not applicable to retail buyers.
Meglio per: Hyperscalers, AI training clusters, large enterprises with MW-scale Milan requirements.
Salta se: You’re deploying fewer than several full racks.

Verdetto: Prendere in considerazione STACK only for multi-MW deployments. For retail single-rack to full-rack Milan colo, CDLAN o Equinix. For multi-MW at a Tier IV certified site, Wiit is boutique but available.

Irideos / Retelit (Avalon Campus) – Italy’s Most Interconnected Site Post-Merger

Avalon 1 Milano (Via Caldera 21, 4.3 MW, 165+ operatori) + Avalon 2 Settimo Milanese + Avalon 3 Bisceglie (3.2 MW) | Certificato di livello III

Corporate history matters here. Asterion acquired Irideos in late 2025 and merged it with Retelit in February 2026, combining into a 38-data-center Italian operator. The Avalon Campus brand continues under Retelit, and older references to “Irideos Avalon” still point to the same physical facilities. That branding uncertainty is a real cost: procurement documents, certification audits, and legacy contracts may still cite Irideos while SLAs now come from Retelit. Expect six to twelve months of paperwork friction before the brand stabilizes.

The facility itself is Italy’s most interconnected hyperconnected data center. Avalon 1 corre 8,900 sqm across four buildings with 25 data rooms, 4.3 Capacità in MW, and direct interconnection with 165+ operatori, fornitori di servizi cloud, and OTTs (compared to CDLAN C21’s 200+ via MIX fiber, Avalon 1 brings operators directly on-site). Certificato di livello III, con ISO 27001, ISO 14001, ISO 22301, ISO 50001, e ISO 9001 in cima. ISO 50001 (gestione energetica) is rare on this list; most competitors skip it. Avalon 3 at Bisceglie launched as Milan’s largest hyperconnected site at 3.2 MW. For buyers prioritizing carrier ecosystem density without Equinix pricing, Avalon is the Italian-owned alternative.

• Professionisti:
• 165+ operators directly on-site at Avalon 1
• ISO 50001 gestione energetica (raro)
• Certificato di livello III
• Post-merger 38-DC Italian footprint
• Contro:
• Brand confusion from Feb 2026 Irideos+Retelit merger
• Not every combined DC offers full colocation
• Prezzi basati su preventivo

Prezzi: Contact for quote.
Meglio per: Italian ISPs, carriers, and content platforms wanting direct ecosystem interconnection at a domestic operator.
Salta se: You need multi-year contract certainty during the active rebrand period.

Verdetto: Scegliere Retelit Avalon when Italian-owned carrier ecosystem density matters and you can absorb the Irideos-to-Retelit branding transition. For zero-brand-transition Milan neutrality, CDLAN C21. For the global standard in carrier ecosystem, Equinix ML3.

How to Choose Italian Colocation

Italian colocation decisions collapse down to four buyer profiles. Each has a binding constraint that narrows the list sharply.

Single server to 8U, budget-first, no regulated compliance → Server.it all'EUR 6.90 per additional U (8U with 3000W entry) o Moviement at EUR 49/month for a single 1U. Both publish real rack prices, both accept small deployments, and both skip the enterprise sales dance. Skip Aruba’s EUR 59/month entry here if you’re trying to keep costs under EUR 100/month total; the add-on 100W blocks push Aruba higher once real power is included. If you need Milan location specifically, Server.it wins over Moviement’s Padova facility.

Regulated industry or Italian PA workload (bancario, assistenza sanitaria, pharma) → Wiit for Uptime Institute Tier IV specifically, Seeweb for ACN qualification plus deep ISO stack, o aruba for ANSI/TIA-942 Rating 4 with published entry pricing. The compliance team’s wording matters: “Uptime Institute Tier IV” means Wiit; “TIA-942 Rating 4” includes Aruba, IT.NET, and Wiit; “ISO 27001” is table stakes everyone listed here holds. Skip Moviement and Server.it in this scenario; cert paper trails aren’t there.

Rete, CDN, or peering-driven workload → Equinix ML3 for MIX + Borsa Italiana under one roof, o CDLAN C21 for direct fiber to MIX at Italian pricing, o Retelit Avalon 1 per 165+ operators on-site. All three are carrier-neutral Milan hubs. The price ladder runs Equinix (premio) > Retelit (mid) > CDLAN (mid). Skip Aruba in this scenario; Bergamo and Arezzo aren’t MIX-adjacent, so peering costs extra hops.

Hyperscale / AI at multi-MW scale → STACK Infrastructure Milan is the only wholesale operator at this tier with 299 MW and announced expansions. For smaller multi-MW at a Tier IV certified site, Wiit o Aruba IT3. Skip everyone else; the commercial motion doesn’t fit, and retail providers can’t commit MW-scale contracts at competitive per-kW rates.

A cross-cutting note: MIX Milan access is the single most valuable piece of real estate in Italian colocation. Any workload whose economics depend on Italian peering ends up at Equinix ML3, CDLAN C21, Retelit Avalon 1, or a direct MIX cross-connect from wherever else you colocate. If you’re not sure whether your workload needs MIX, probabilmente no. Most content-delivery and DNS-heavy workloads do; most backend compute workloads don’t. Vedere colocation vs managed hosting if you’re weighing whether to own hardware at all.

Domande frequenti

How much does a rack of colocation cost in Milan per month?

Entry SMB pricing published publicly runs EUR 49-59/month for 1U-8U starter tiers at Server.it, Moviement, e Aruba. Full retail racks at carrier-neutral Milan facilities (CDLAN, Equinix, Retelit Avalon) and certified Tier IV facilities (Wiit) are quote-only; specific monthly figures depend heavily on power draw and cross-connect count. Two deployments in the same rack can differ 3-5x on total monthly cost depending on kW density and how many different carriers you cross-connect to.

Is Uptime Institute Tier IV the same as ANSI/TIA-942 Rating 4?

No. They’re two different certification programs from two different organizations. Uptime Institute Tier IV certifies design documents and constructed facilities against Uptime’s own criteria, and it’s the benchmark for financial and pharmaceutical regulated workloads. ANSI/TIA-942 Rating 4 is a BICSI-operated standard with similar-but-distinct criteria. Wiit holds Uptime Institute Tier IV at MIL1 and MIL2. Aruba and IT.NET hold ANSI/TIA-942 Rating 4. CDLAN claims “Tier IV compliant,” which is self-declared alignment rather than either certification. If your compliance language specifies one or the other, use it exactly.

Which Italian data centers have direct MIX Milan access?

Equinix ML3 hosts MIX itself on-site. CDLAN C21 connects via 2×144-core direct fiber to MIX. Retelit Avalon 1 has direct MIX interconnection. IT.NET Assago is carrier-neutral and can reach MIX via cross-connect, but is not as tightly coupled. aruba, Seeweb, Wiit, Criticalcase, and others connect to MIX via transit rather than direct peering. For content and CDN workloads where peering latency matters, the first three are your shortlist.

What changed with the Irideos acquisition?

Asterion acquired Irideos in late 2025 and merged it with Retelit in February 2026. The combined company now operates 38 data centers across Italy under the Retelit brand. Avalon Campus (Avalon 1 in Milan, Avalon 2 in Settimo Milanese, Avalon 3 in Bisceglie) continues as the primary colocation brand. Active Irideos contracts have rolled over; new procurement documents should reference Retelit. Aspettarsi 6-12 months of paperwork friction where legacy references to Irideos still appear in audits, SLA, e documentazione.

Can I colocate a single server in Milan for under EUR 100/month?

sì, at Server.it (8U entry with 3000W bundled works out to a few tens of euros per month for a 1U box if you amortize the shared power envelope) or by pairing Moviement’s EUR 49/month 1U with a Padova location instead of Milan. Aruba’s EUR 59/month entry + power add-ons typically exceeds EUR 100/month once realistic power draw is included. For true Milan location at the lowest rate, Server.it wins. For Padova at the lowest published 1U rate, Moviement wins.

Verdetto finale

For single-server to small-deployment Italian colocation at transparent pricing, Server.it (Milano) o Moviement (Padova) are the practical picks. For enterprise compliance requiring Uptime Institute Tier IV specifically, Wiit is the only verified option in this comparison. For ANSI/TIA-942 Rating 4 plus campus scale plus published entry pricing, aruba wins on breadth. For Milan carrier neutrality, Equinix ML3 sets the ecosystem benchmark, con CDLAN C21 e Retelit Avalon 1 providing Italian-owned alternatives. Saltare STACK Infrastruttura unless you’re a hyperscale buyer.

Related reading on nearby markets and adjacent tiers: Nostro best web hosting in Italy guide covers shared and VPS tiers below colocation. If you’re weighing whether to own hardware at all, colocation vs managed hosting breaks down the trade-offs. For German colocation if your deployment spans the Alps, Vedere best colocation hosting in Germany. For cross-Europe capacity planning, best colocation hosting gives the pan-regional view. For Italian virtual hosting if colocation is overkill for your workload, VPS hosting Italy covers the tier below.