Established as Overgas Ltd. on June 10, 1991, in order to create a company for the implementation of engineering projects related to gas infrastructure. The company began to grow by establishing:

  • Specialized engineering services company Overgas Engineering AD
  • Specialized design company Gastec BG AD
  • Specialized company for development of investment projects Overgas Inc. AD

At that time, the main direction of the business was focused on the development of urban gasification.

The company that implements the project for gasification of the Bulgarian cities is Overgas Network AD.

More than 40 companies are included in Overgas holding structure, such as Overgas Engineering AD, Overgas Tehnika AD, Overgas Networks AD, Overgas Service AD, Overgas Capital AD, Overgas Direct AD, Toplofikacia Razgrad EAD.

'Overgas Mrezhi' AD

The largest private gas distribution company in Bulgaria. The company builds and operates gas distribution networks and sells natural gas to end users on the territory of 51 municipalities in the country. Overgas network is more than 2,400 km long and reaches the homes of nearly 250,000 Bulgarian households. Overgas’ customers are over 60,000 families, over 3,000 manufacturing companies, hundreds of schools, kindergartens, hospitals and social care facilities.


'Gastec BG' AD

A leader in gas technology and gas pipeline design. The company provides quality, reliable and safe engineering solutions, projects and technologies in the field of natural gas and the related civil engineering infrastructure on the Bulgarian and international market. Gastec BG AD has also developed the feasibility study for South Stream in Bulgaria. The company has high-performance equipment, uses state-of-the-art technology. It employs specialists, involved in the design and construction of transmission and distribution gas pipelines and product lines, as well as the accompanying gas and energy facilities in Bulgaria, Russia, Syria, Libya, Iraq, Ukraine, etc.


'Overgas Service' AD

Established in 1997, Overgas Service AD maintains, repairs and reconstructs the transmission and distribution pipelines and the related facilities, as well as performs metrological inspections of measuring instruments.


'Overgas Direct' AD

Established in 2016, the company specializes in the supply of a complex service for construction of gas installations for buildings. It has an extensive network of suppliers of materials and gas appliances, subcontractors for contruction of gas installations, organizes mobile sales teams to advise and present the benefits of natural gas to potential customers.


'Overgas Tehnika' AD

Performs technical supervision of high-risk facilities since 2006, ensuring the safety of their operation. The main objective of the technical supervision is the control over the observance of legally defined requirements, rules and standards related to the equipment, design, installation and operation, ensuring the safe functioning of these facilities for people and environment. Overgas Tehnika AD has implemented a quality system according to BDS EN ISO 17020 standard.


'Overgas Engineering' AD

The company was established in 1993 and is the successor to the first largest private engineering company in the gas industry in Bulgaria. Overgas Engineering AD is involved in project management, consultancy, supervision, design, procurement, construction, installation and commissioning of pipelines for gas, oil, petrochemical, sewage and heating systems, and related equipment, design, manufacture, installation and commissioning of gas metering and regulation stations, supply of materials and equipment for the listed systems. The company is the first in the gas sector in the Republic of Bulgaria, which has a certified Quality Management System based on ISO 9001 since 2000, certified Environmental Management System based on ISO 14001 since 2006, and certified System for Occupational Health and Safety Management OHSAS 18001 since 2010, covering a wide range of engineering infrastructure construction activities. Approval certificates are issued by the internationally recognized organization Lloyd’s Register Quality Assurance.

'Overgas Capital' AD

The company began its operation on the market at the end of 2006. The main scope of activity is providing financial services, i.e. consumer loans for financing the current needs, target credits for gasification of household gas customers, and other products. Overgas Capital AD is the first non-bank company in Bulgaria to offer targeted financing for all phases of gasification process, online credit application and repo seured customer loans to the leading Bulgarian investment intermediaries.


'Vestitel BG' AD

The company was established in 2003 and offers complex telecommunication services, such as television, internet and telephony, and is also an international communication operator. It offers a new generation of telecom services, i.e. voice-data-video provided through unified services to all customers and 24-hour support of the services provided. Vestitel AD offers a telecommunication variety of services due to broadband technology. Services are characterized by security and reliability of communications guaranteed by the access to an optical network.