In brief

AS Augstsprieguma tikls is an independent transmission system operator in the Republic of Latvia, engaged in providing electric power transmission network services and ensuring the balancing and stability within the transmission network.



+ Figures and facts


+ Awards


AST participates in the annual Sustainability Index managed by the Corporate Responsibility and Sustainability Institute, and in 2022, the company received the top Platinum award (as an assessment of its work in 2021). The company’s performance gets better every year: in 2015, it received a Bronze Award, in 2016 and 2017, Silver Awards, becoming a sustainability champion for growing faster than any of the Index’s other participants, and receiving a Gold Award in 2018 and Platinum award in 2019, 2020 and 2021.
The employee selection company CV-Online Latvia carried out a 2018 Top Employer survey, in which AST took second place as the most popular and best appreciated employer among Latvia’s energy companies. AST took 13th place in the overall ranking, rising more than 10 positions compared to the previous year.



In 2018, 2019 and 2020, the Ministry of Welfare awarded AST the title of a Family-Friendly Company, praising the care and positive attitude expressed by the company towards its employees, clients and their families.

The State Revenue Service named AST its Gold partner as part of the expanded cooperation programme.

The expanded cooperation programme is a way for the State Revenue Service to collaborate with taxpayers, in which the companies that match certain criteria are selected and assigned one of three levels: Bronze, Silver and Gold. Depending on the level, the State Revenue Service offers various benefits to the participants of the programme.



3rd place in the New Utility Building category of the 2017 Latvijas Būvnieciba Annual Awards (for the Skanste transformer substation).

The Kurzeme ring project, implemented by AST, was recognised as the best engineering structure 2019 in the competition “Best Building of the Year in Latvia”. In total, 21 objects were nominated in this category.

The competition “Best Building of the Year in Latvia”, organised by the Latvian Building Engineers Association and the Latvian Association of Civil Engineers in cooperation with 16 major organisations of the construction sector, state institutions, universities, and municipalities, is organised for the 22nd time. The objects submitted in the competition were evaluated by 50 experts and the jury visited more than 80 objects; 41 buildings were presented in the final.


In the competition “The safest company car fleet 2020,” the fleet of AST has won a silver rating. The competition is organised by the insurance joint stock company “Balta” in cooperation with the Ministry of Transport and partners; the purpose of it was to initiate understanding of the state authorities and municipalities and the need for a safe car fleet of the company, as well as to promote good practice in their management.

In 2020, the Latvian transmission system operator AS Augstsprieguma tīkls is included for the first time in the TOP 101 most valuable companies in Latvia created by Nasdaq Riga and Prudentia, in 21st. In turn, when evaluating the AST Corporate Governance Ratio, experts rated it with 92 points, which is the highest indicator of all companies included in the TOP 101.

In 2021, AST has been ranked as the third most valuable company among the state capital companies and ranks 7th among all Latvian companies included in the listing, demonstrating a growth of 14 positions compared to last year



+ Ownership structure

Share capital

The registered share capital of the AST is EUR 395 555 050 comprised of 395 555 050 ordinary shares with a nominal value of EUR 1 each. The owner of all AST shares is the Ministry of Climate and Energy of the Republic of Latvia (100%).

Participation in other Companies
Name of the Company Location Type of business  AST participation rate (%)
JSC "Pirmais slēgtais pensiju fonds'' Latvia Administering pension plans 1.9%
JSC "Conexus Baltic Grid"  Latvia Natural gas transmission and storage operator 68.46%


+ Membership in public organizations

AST is a member of the following public organizations:



The participation of AST in ENTSOe – (the European Network of Transmission System Operators for Electricity) provides an opportunity to participate in the development of legislation and policy documents at the European level. 36 countries and 43 operators of transmission systems are represented in the association. Its goal is to work towards liberalising the gas and electricity market in the European Union.

AST has been a corporative member of the “Institute of Corporate Sustainability and Responsibility” since 2016 and is involved in its activities by participating in the annual evaluation of the Sustainability Index, improving its performance year by year, and by participating in the activities of good practice exchange organised by the Institute (seminars, training, Responsible Business Week). InCSR_logo_LV_Positive-01.png

The participation of AST in the “Latvian Association of Power Engineers and Energy Constructors” (LEEA) provides an opportunity to participate in the evaluation and development of electricity and energy legislation, policy documents and standards, in the organisation of personnel certification and training programmes, in conducting research related to power energy and in the organisation of scientific and technical events, as well as to cooperate with educational institutions in the field of power engineering. The representatives of AST regularly attend LEEA meetings to provide an exchange of views on current issues in the power industry, including energy security.

AST is a member of the Association of Issuing Bodies (AIB). Issuance, circulation and trade of certificates of origin of electricity in Europe made possible by the "Association of Issuing Bodies".

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AST has been a member of the “National Committee of the World Energy Council” (PEP LNK) since 2016. Participation in PEP LNK provides information on the exploration, extraction, transport, transformation and efficient use of energy resources, both nationally and internationally.

In 2021, AST has joined Swedbank’s Business Sustainability Council to exchange knowledge, deepen its understanding of sustainability and create a more sustainable business environment in Latvia together with other companies.