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Search›Companies›osaühing A 3
10914014ActivePrivate limited companyEE100815373 · VAT-registered

osaühing A 3

Tartu maakond, Tartu linn, Tartu linn, Tähtvere tn 18d-2·EMTAK 71111 — Architectural activities·23+ years
Andmed · ···
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Overview

e-Business Register · 9 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
28.02.2003e-Business Register
Address
Tähtvere tn 18d-2, Tartu linn, Tartu linn, 51007 Tartu maakondADS · e-Business Register
E-mail address
aet@a3.eee-Business Register
Telephone
+372 5039738· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 71111 - Architectural activitiese-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
5112,00 €e-Business Register
LEI
984500EC11E639476A49 · issued 22.02.2021GLEIF
Estonia's public business register
HomeViewsIndustriesBlogSourcesAbout

Public registry of Estonian companies — every fact traceable to a source and a date. Free and ad-free for everyone.

Nimistu MTÜ
Address: Parda tn 8, 10151 Tallinn, Estonia
E-mail: info@nimistu.ee

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  • Home
  • Views
  • Industries
  • Activity licences
  • Recent registrations

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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 9 sourcese-Business Register · 4 min agoMTARTKMTRGLEIF
e-Business Register ↗

Registered 28. veebruar 2003, primary activity: Architectural activities. Main place of business in Tartu linn, Tartu linn, Tartu maakond.

Revenue 2026 II kv
8968 €
▼ 66% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
2
2026 (MTA)
Taxes paid
7612 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
23k €
▼ 51% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
2
2026 (MTA)
Taxes paid
16k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Officers (2)

e-Business Register · 9 h ago
AS
Aet Seire
Born 1972 · 53 y · board member since 28.02.2003
Board member
IS
Indrek Seire
Born 1971 · 55 y · board member since 28.02.2003
Board member

Founders

e-Business Register · 9 h ago
AS
Aet Seire
Born 1972 · 53 y · founder since 28.02.2003
Founder

Shareholders (2)

e-Business Register · 9 h ago
IS
Indrek Seire
Born 1971 · 55 y · shareholder since 01.09.2023
Shareholder 50% · 3k €
AS
Aet Seire
Born 1972 · 53 y · shareholder since 01.09.2023
Shareholder 50% · 3k €

Subsidiaries

e-Business Register · shareholders · 9 h ago
osaühing A 310914014Shareholder 1%Medicum Group OÜ17209514Shareholder 14%Osaühing SUUR VISIIT10941850Shareholder 100%SuurV Omandav ühing 5 OÜ17550124
osaühing A 3 is a shareholder or officer in 3 more companies.

Annual reports (7)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
115k €
↗ +11.6% vs 2024
State taxes 2025
28k €
↗ +13.3% vs 2024
Employees 2025
1
↘ -50.0% vs 2024
YearRevenueProfit

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
50k €25k €0

Licences (2)

MTR · 8 h tagasi
Active licences
2
Other2
Oldest · Newest
2007→2021
Oldest licenceEEP001223 · 12.11.2007
Newest licenceEMU000541 · 11.03.2021
Active2 / 2
EMU000541
Muinsuskaitse
Majandustegevusteade
From11.03.2021
UntilOpen-ended
Valid

Tech stack

Tehnoloogiad
Mobile carrier
+372 5039738Telia Eesti AS

State-sector payments (5 · 13k €)

RTK Makseandmik · 15.05.2026
Transactions
5
2024–2025 · 2 years
Total amount
13k €
avg 3k €
Buyers
3
State and municipal bodies
Latest
17.10.2025
3k € · Tallinna Ülikool

2025: 12k € · 2024: 367,71 €

BuyerTxAmountShare
Tallinna Ülikool
74000122
3
12k €

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
30.06.2026ReportEsitati 2025. aasta aruanne— Käive 114 679 €
2025
27.06.2025ReportEsitati 2024. aasta aruanne— Käive 102 772 €

Connected companies

Same-person ties · e-Business Register

osaühing A 3 is connected to 8 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Indrek Seire (7 companies).

Total connections
8
via 2 people
Connecting people
2
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Indrek
7 companies
Via personIndrek Seire
Equity
Assets
Employees
2025114 679 €−12 842 €310k €316k €130.06.2026
2024102 772 €3653 €323k €330k €227.06.2025
2023122 915 €45 454 €319k €334k €201.07.2024
2022105 002 €9030 €274k €290k €228.06.2023
202183 891 €−2169 €264k €278k €209.11.2022
202076 534 €13 915 €44k €56k €230.06.2021
201981 693 €−51 844 €30k €46k €228.06.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
20222023202420252026
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I-II Q23 336 €8483 €7531 €2
202575 043 €27 952 €19 117 €2
202479 495 €24 660 €15 917 €2
202380 829 €24 363 €15 254 €2
202297 182 €31 227 €19 087 €2
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202614k €9k €––
State taxes 20265k €4k €––
Taxes on workforce 20264k €4k €––
Employees 202622––
Revenue 202522k €27k €9k €18k €
State taxes 20257k €7k €5k €9k €
Taxes on workforce 20255k €4k €4k €6k €
Employees 20252222
Revenue 202424k €20k €12k €23k €
State taxes 20247k €6k €4k €8k €
Taxes on workforce 20244k €4k €3k €5k €
Employees 20242222
Revenue 202313k €15k €20k €33k €
State taxes 20235k €4k €6k €9k €
Taxes on workforce 20235k €3k €4k €4k €
Employees 20232222
Revenue 202228k €35k €15k €19k €
State taxes 20227k €11k €7k €6k €
Taxes on workforce 20224k €6k €6k €3k €
Employees 20222222
EEP001223
Projekteerimine
Majandustegevusteade
From12.11.2007
UntilOpen-ended
Valid
VÄLISMINISTEERIUM
70002526
1
367,71 €
Türi Vallavalitsus
75033460
1
305 €
20254 transactions · 12k €
17.102025
Tallinna Ülikool74000122
MAJANDAMISKULUD · Kolmanda taseme haridus
3348 €
25.042025
Tallinna Ülikool74000122
MAJANDAMISKULUD · Kolmanda taseme haridus
3386 €
16.042025
Türi Vallavalitsus75033460
MAJANDAMISKULUD · Muu haridus, sh hariduse haldus
305 €
14.042025
Tallinna Ülikool74000122
MAJANDAMISKULUD · Kolmanda taseme haridus
5124 €
20241 transaction · 367,71 €
03.072024
VÄLISMINISTEERIUM70002526
PÕHIVARA · Välispoliitika
368 €
7
Aet Seire1
IS
Indrek Seire
board member, shareholder 50%
7 other companies›
CompanyRoleReg. code
Finest-Hall Factory OÜ
Shareholder 0%
12003860
MTÜ Kihnu Hüljes
Board memberFounder
80647307
Osaühing SUUR VISIIT
FounderBoard member
10941850
Seirekliinik OÜ
FounderBoard member
14430158
Sunmill SPV1 OÜ
Shareholder 1%
16056988
SuurV Omandav ühing 5 OÜ
Board member
17550124
WALTERMITTY OÜ
FounderBoard member
16593054
AS
Aet Seire
board member, founder, shareholder 50%
1 other company›
CompanyRoleReg. code
SuurV Omandav ühing 5 OÜ
Board member
17550124

Analysis · 2025

computed from annual reports
Revenue115k €median 23k €4.9× the sector median
Net margin-11.2%median 8.9%-20.1 pp vs sector median
Revenue per employee115k €median 38k €3.1× the sector median
Revenue change11.6%median 1.1%+10.5 pp vs sector median
Equity ratio98.1%
Current ratio10.80
Labour cost of revenue35.8%
Profit per employee−12 842 €
Compared with2024revenue 103k €

Peer group: Arhitektitegevused, 854 trading companies that filed a report in the last three years.

Founded 2003. That year 2,813 osaühing were registered; 2,725 are still trading, or 96.9%.