e-Government
- Tallinn City
- Enterprise Estonia
- Estonian Civil Aviation Administration
- Estonian Central Register of Securities
- Estonian Centre for Standardisation
- Estonian Environment Information Centre
- Estonian Ministry of Defense
- Estonian Ministry of Education and Research
- Estonian Ministry of Environment
- Estonian Ministry of Finance
- Estonian Ministry of the Interior
- Estonian Ministry of Social Affairs
- National Archives of Estonia
- Estonian Police and Border Guard Board
- Estonian Road Administration
- Estonian Tax and Customs Board
- Estonian Traffic Insurance Fund
- Estonian Unemployment Insurance Fund
- Estonian Wood Management Authority
- Nigerian Federal Ministry of Finance
- Finnish Communications Regulatory Authority (FICORA)
- Finnish Tax Administration
- Lithuanian Registry Centre
- Lithuanian State Social Insurance Fund
- Lithuanian Information Society Development Committee
- Lithuanian Art Museum
- Oman Ministry of Commerce and Industry
- Ministry of Finance of the Republic of Moldova
- Ministry of Interior of the State of Qatar
- National Audit Office of Estonia
- Oman Information Technology Authority
- Estonian Agricultural Registers and Information Board (ARIB)
- Finland’s Slot Machine Association (Ray)
- Statistics Estonia
- University of Tartu
- Estonian Government Office
- Supreme Council of Information & Communications Technology of the State of Qatar (ictQatar)
Manufacturing & Logistics
- Neste Oil
- Outokumpu
- PKC Group
- Ruukki
- Lappset
- Steveco
- Estonian Post
- Lithuanian Post
- FASADI
- John Deere Forestry
- Finnsteve
- Valio
Telecom
- Bite
- DNA
- Elion Enterprises
- EMT
- Telcel
- TeliaSonera
- Omnitel
- Tele2
- Teo LT
Healthcare
- East-Tallinn Central Hospital
- Estonian Medical Image Bank
- Labquality
- Quattromed
- Tartu University Hospital
- Estonian eHealth Foundation
- Estonian Agricultural University
Financial Services
- Baltic Investments Group
- DNB Leasing
- DNB Lithuania
- Ergo Insurance Group
- If P&C Insurance
- LHV Bank
- Hansa Capital Group
- Baltic Car Lease
- E-Insurance
- Julianus Inkasso
- Salva Insurance
- Estonian Central Bank
- Serbian Central Bank
- DDOR Novi Sad
- Delta Generali
- Gosmo
- AON Insurance Broker
- Kagu Invest
- Sampo Bank (Danske Bank)
- SEB
- Swedbank
- Tallinn Stock Exchange
Energy & Resources
- Eesti Energia
- Neste Oil
- Lithuanian Energy
- Oil Trade Company
- Nordic Oil Trade
- Lesto
- Eesti Gaas
- Transbility
- Shell Estonia
- Shell Latvia
- Lukoil Lithuania
Other
- Playtech
- Maxima
- Ericsson
- Securitas
- Edelaraudtee