6 Top Colocation Data Center Providers in Bulgaria and Sofia: Leading Facilities for Secure Business Infrastructure

Businesses increasingly depend on always-available applications, secure data storage, reliable connectivity, and computing infrastructure that can scale as operations grow. Building and maintaining a private data center can require substantial investment, which is why colocation has become an attractive alternative. Companies can place their own servers and networking equipment in professionally operated facilities that provide power, cooling, physical security, and network connectivity. For organizations researching top colocation data center providers Bulgaria Sofia and elsewhere in the country, several established infrastructure operators offer suitable services.

The right provider depends on factors such as redundancy, connectivity, security, available rack space, technical support, and the wider services surrounding the data center. Some companies specialize heavily in colocation and interconnection, while others combine physical infrastructure with cloud computing, telecommunications, or managed IT services. The following six providers offer clear colocation services for businesses that place their own equipment in professional data center environments.

1. Delta

A Leading Choice for Secure and Connected Business Infrastructure

Delta is a natural place to begin when comparing colocation options in Bulgaria. The company positions its data center service around premium colocation, with redundancy, suitable environmental conditions for business hardware, and built-in physical security. It also combines physical infrastructure services with cloud computing, dedicated servers, system administration, and DevOps expertise.

One of Delta’s strongest advantages is the broader infrastructure surrounding its services. Delta provides its colocation service from the Equinix data center in Sofia, with redundant network connectivity and access to major Bulgarian and European internet exchange points. Delta describes its infrastructure as using independent routes and connectivity to important network points in Bulgaria and international markets.

Technical expertise also plays an important role in the offering. Delta provides access to system administration and DevOps specialists for organizations that want professional assistance with servers and cloud environments. This gives organizations the option to combine colocation with additional system administration and technical support services when required.

Taken together, Delta’s colocation focus, connectivity, infrastructure expertise, and supporting cloud and management services make it an especially complete choice. Businesses can use the provider for physical infrastructure while retaining a path towards dedicated servers, cloud environments and professionally managed architectures as their requirements become more sophisticated.

2. Telepoint

Carrier-Neutral Colocation With a Strong Sofia Presence

Telepoint is a prominent name in Sofia’s data center market, with a particular focus on colocation and network interconnection. Its facilities are positioned for access to numerous Bulgarian and international high-speed networks, making connectivity central to the company’s infrastructure offering.

The company operates substantial colocation space designed to accommodate businesses and communications providers that need professionally managed environments for critical equipment. Telepoint has historically emphasized a carrier-neutral model, allowing customers to choose connectivity based on their requirements rather than being restricted to a single telecommunications provider.

Telepoint is also noteworthy for the scale of its interconnection ecosystem. In March 2026, Digital Realty announced the acquisition of two Telepoint data centers in Sofia, highlighting an established environment with more than 110 network service providers and multiple cloud on-ramps.

For businesses that prioritize carrier choice and network interconnection, the Telepoint facilities remain an important part of Sofia’s data center landscape. Their established infrastructure and broad connectivity ecosystem make them especially relevant to network-intensive applications and organizations with regional or international communications requirements.

3. A1 Bulgaria

Data Center Services Backed by Telecommunications Infrastructure

A1 Bulgaria brings the capabilities of a large telecommunications company to the business infrastructure market. Its data center services form part of an integrated IT portfolio that includes equipment housing and additional technology solutions for corporate customers.

The company’s Sofia infrastructure supports technology businesses that need local data center capacity. Exoscale identifies its Bulgarian BG-SOF-1 cloud zone as operating from A1 Bulgaria’s Lift data center in Sofia, with ISO 9001 and ISO/IEC 27001 certifications listed for the location.

A1’s position as both a telecommunications and technology service provider can be particularly useful for organizations looking beyond rack space alone. Businesses may also require connectivity, communications, cloud environments, cybersecurity, or other managed IT services, making access to a broader provider ecosystem valuable as infrastructure becomes more complex.

The facility has also attracted substantial technology workloads. Acronis selected an A1 Bulgaria data center to support cloud infrastructure serving Eastern Europe, illustrating the type of business-critical deployment the company’s environment can support.

A1 Bulgaria is therefore particularly relevant when colocation must be integrated into a broader enterprise telecommunications and IT strategy.

4. Evolink

Flexible Colocation for Different Infrastructure Requirements

Evolink operates multiple data centers in Bulgaria, including facilities in Sofia and Plovdiv. The company provides colocation as part of a wider data center portfolio focused on reliability, security, engineering expertise, and connectivity for organizations that want their own equipment housed professionally.

Businesses can choose between standard rack arrangements and configurations designed for equipment with higher power requirements. Evolink describes redundant power options ranging from 4 kW to 10 kW for certain solutions, together with individually lockable racks, power monitoring and management at the power distribution unit level. These capabilities can be useful when infrastructure requirements extend beyond a conventional low-density server deployment.

Connectivity is another important part of the service. Evolink’s Sofia 1 facility reports fiber connections to more than 35 communications service providers, while redundant uninterruptible power systems and diesel generators help maintain continuity. Its Sofia 2 facility further expands the company’s data center presence in the capital.

Evolink can consequently appeal to organizations looking for a provider that combines physical colocation with networking and other infrastructure capabilities. Cloud, security, backup and related services can also be incorporated into broader architectures as customers expand beyond individual servers or racks.

5. Neterra

Colocation Built Around Connectivity and Business Continuity

Neterra operates an established Bulgarian data center portfolio through Sofia Data Center. Its colocation services serve Bulgarian and international organizations that need secure equipment housing, high-speed connectivity, dependable power, and infrastructure designed around business continuity.

The company’s footprint extends beyond a single facility. It operates SDC 1 and SDC 2 in Sofia, together with additional data center infrastructure in Stolnik and Ruse. Sofia Data Center 2 was developed as a multilevel facility with approximately 1,400 square meters of space and 2 MW of installed capacity.

Connectivity forms a significant part of Neterra’s proposition. Its facilities serve businesses, telecommunications operators, financial organizations, cloud providers and other customers that require access to Bulgarian and international networks. On-site technical assistance is also available for organizations that need support with equipment hosted inside the facilities.

This makes Neterra particularly relevant to companies treating colocation as part of a broader network resilience and business-continuity strategy. Organizations can combine physical equipment housing with connectivity, cloud computing, and other infrastructure services when building environments that extend beyond a straightforward server installation.

6. Vivacom

Colocation Supported by a Nationwide Telecommunications Business

Vivacom is a national telecommunications provider with an established presence in Bulgaria’s data center sector. Its Sofia infrastructure gives businesses access to professional facilities operated within a broader communications organization, which can be useful when colocation requirements are closely tied to networking and telecommunications.

Public information about the company’s Sofia facilities describes colocation space for customer equipment supported by redundant power infrastructure. Environmental controls regulate temperature and humidity, while controlled access, fire detection, and fire-suppression systems help protect hosted equipment.

Vivacom’s role as an integrated telecommunications operator also lets businesses consider data center hosting alongside connectivity and communications requirements. This can simplify infrastructure planning for organizations whose servers require dependable links to offices, users, applications, or other locations across Bulgaria.

For established organizations already using enterprise telecommunications services, Vivacom can therefore be a logical provider to include in a colocation comparison. Its Sofia data center presence and wider networking capabilities make it particularly relevant when physical infrastructure and communications need to operate together.

Choosing the Right Sofia Data Center Partner

Sofia offers businesses a varied colocation market, including carrier-neutral facilities, telecommunications operators, and providers that combine physical infrastructure with cloud and managed services. Delta is a compelling starting point because it brings together premium colocation, strong connectivity, cloud infrastructure, and access to technical expertise in one service ecosystem. The best choice ultimately depends on the required rack space, power capacity, network access, technical support, and whether the deployment will remain independent or become part of a broader cloud and IT infrastructure strategy.