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Search›Companies›Töökeskkonna Uuringud OÜ
10109548ActivePrivate limited companyEE100139884 · VAT-registered

Töökeskkonna Uuringud OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Gonsiori tn 21-311·EMTAK 71209 — Other testing and analysis·29+ years
Andmed · ···
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Overview

e-Business Register · 6 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
25.11.1996e-Business Register
Address
Gonsiori tn 21-311, Kesklinna linnaosa, Tallinn, 15020 Harju maakondADS · e-Business Register
E-mail address
info@tku.eee-Business Register
Telephone
+372 6612275· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 71209 - Other testing and analysise-Business Register · ETCB
VAT number
ETCB · VAT-registered
nimistu
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

Browse

  • Home
  • Views
  • Industries
  • Recent registrations

Data

  • 72 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 9 sourcese-Business Register · 6 min agoMTARTKMTR
e-Business Register ↗

Registered 25. november 1996, primary activity: Other testing and analysis. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 (I kv)
12 317 €
▼ 18% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
2
2026 (MTA)
Taxes paid
5878 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 29.06.2026 (MTA)
Revenue 2026 (I kv)
12k €
▼ 18% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
2
2026 (MTA)
Taxes paid
6k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 29.06.2026 (MTA)

Officers

e-Business Register · 6 h ago
ES
Enn Saretok
Born 1951 · 74 y · board member since 05.07.2001
Board member

Shareholders (11)

e-Business Register · 6 h ago
0%50%100%
Founder / management
169.7% · 11
#ShareholderType%€
1

Beneficial owners

e-Business Register · 6 h ago
ES
Enn Saretok
Born 1951 · 74 y · ultimate beneficial owner since 04.04.2024
Ultimate beneficial owner

Annual reports (6)

e-Business Register · annual reports · 1 h tagasi
Revenue 2024
50k €
↗ +4.9% vs 2023
State taxes 2025
16k €
↗ +18.8% vs 2024
Employees 2024
2
0.0% vs 2023
YearRevenueProfit

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
50k €25k €0

Licences (1)

MTR · 5 h tagasi
Active licences
1
Other1
Oldest · Newest
2008→2008
Oldest licenceTEL001039 · 22.07.2008
Active1 / 1
TEL001039
Elektritööd
Majandustegevusteade
From22.07.2008
UntilOpen-ended
Valid

Tech stack

Tehnoloogiad
Mobile carrier
+372 6612275Telia Eesti AS

State-sector payments (5 · 5k €)

RTK Makseandmik · 15.05.2026
Transactions
5
2024–2025 · 2 years
Total amount
5k €
avg 1k €
Buyers
3
State and municipal bodies
Latest
16.04.2025
183 € · Sisekaitseakadeemia

2025: 183 € · 2024: 5k €

BuyerTxAmountShare
OÜ Rail Baltic Estonia
12734109
2

History

last 2 years · MTA + ÄR + MTR + Procurements
2025
24.06.2025ReportEsitati 2024. aasta aruanne— Käive 49 817 €

Connected companies

Same-person ties · e-Business Register

Töökeskkonna Uuringud OÜ is connected to 5 other companies through 5 people who hold a role here and elsewhere. The strongest tie runs through Enn Saretok (1 company).

Total connections
5
via 5 people
Connecting people
5
Active here
Distinct roles
3
Board member · Shareholder
Strongest tie
Enn
1 company
Via personEnn Saretok
Enn Saretok
Founder / management
29.10%
–
2
Margus Kask
Founder / management15.16%–
3
Eha Reismaa
Founder / management13.94%–
4
Ilve Kangro
Founder / management13.94%–
5
Mare Remm
Founder / management13.94%–
6
Renna Kangro
Founder / management13.94%–
7
Tanel Kangro
Founder / management13.94%–
8
Anne Erin
Founder / management13.94%–
9
Ilmar Heido
Founder / management13.94%–
10
Ats Riivits
Founder / management13.94%–

+ 1 more shareholder – full list below.

Concentration

How tightly the cap table is held. Top-N shows the combined stake of the largest N shareholders; the 80% line is the smallest group that together controls 80%; Gini is 0 when stakes are perfectly equal, 1 when one holder owns everything.

Top 1
29.1%
Top 3
58.2%
Top 5
86.1%
Top 10
155.8%
80% line
9 of 11
Gini
0.09

Dominant holder: 29.1% – non-controlling but blocking.

ES
Enn Saretok
Born 1951 · 74 y · shareholder since 01.09.2023
Shareholder 29%
MK
Margus Kask
Born 1969 · 57 y · shareholder since 01.09.2023
Shareholder 15%
ER
Eha Reismaa
Born 1944 · 81 y · shareholder since 01.09.2023
Shareholder 14%
IK
Ilve Kangro
Born 1956 · 70 y · shareholder since 01.09.2023
Shareholder 14%
MR
Mare Remm
Born 1954 · 72 y · shareholder since 01.09.2023
Shareholder 14%
RK
Renna Kangro
Born 1990 · 35 y · shareholder since 01.09.2023
Shareholder 14%
TK
Tanel Kangro
Born 1979 · 47 y · shareholder since 01.09.2023
Shareholder 14%
AE
Anne Erin
Born 1940 · 85 y · shareholder since 01.09.2023
Shareholder 14%
IH
Ilmar Heido
Born 1965 · 60 y · shareholder since 01.09.2023
Shareholder 14%
AR
Ats Riivits
Born 1956 · 69 y · shareholder since 01.09.2023
Shareholder 14%
UN
Urve Nilk
Born 1952 · 73 y · shareholder since 01.09.2023
Shareholder 14%
Equity
Assets
Employees
202449 817 €−15 036 €5k €13k €224.06.2025
202347 490 €−4155 €20k €30k €227.06.2024
202255 903 €−61 €24k €40k €216.05.2023
202158 785 €−6921 €24k €42k €207.06.2022
202061 068 €−3941 €31k €50k €207.05.2021
201961 164 €2178 €35k €63k €208.06.2020
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 Q12 317 €3785 €2093 €2
202553 184 €15 744 €8323 €2
202451 826 €13 247 €7523 €2
202352 822 €13 618 €7774 €2
202250 465 €14 837 €8531 €2
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202612k €–––
State taxes 20264k €–––
Taxes on workforce 20262k €–––
Employees 20262–––
Revenue 202515k €12k €17k €10k €
State taxes 20254k €4k €5k €3k €
Taxes on workforce 20252k €2k €2k €2k €
Employees 20252222
Revenue 20249k €18k €8k €17k €
State taxes 20243k €4k €2k €4k €
Taxes on workforce 20242k €1k €2k €2k €
Employees 20242222
Revenue 202324k €9k €8k €12k €
State taxes 20236k €3k €2k €3k €
Taxes on workforce 20232k €2k €1k €2k €
Employees 20232222
Revenue 202214k €14k €12k €10k €
State taxes 20224k €4k €3k €3k €
Taxes on workforce 20222k €2k €2k €2k €
Employees 20222222
3k €
Ida-Tallinna Keskhaigla AS
10822068
2
2k €
Sisekaitseakadeemia
70004465
1
183 €
20251 transaction · 183 €
16.042025
Sisekaitseakadeemia70004465
PÕHIVARA · Kolmanda taseme haridus
183 €
20244 transactions · 5k €
18.102024
OÜ Rail Baltic Estonia12734109
MAJANDAMISKULUD · Raudteetransport
551 €
13.062024
Ida-Tallinna Keskhaigla AS10822068
MAJANDAMISKULUD · Üldhaigla teenused
228 €
11.042024
OÜ Rail Baltic Estonia12734109
MAJANDAMISKULUD · Raudteetransport
2675 €
05.012024
Ida-Tallinna Keskhaigla AS10822068
MAJANDAMISKULUD · Üldhaigla teenused
1808 €
1
Tanel Kangro1
Margus Kask1
Ilmar Heido1
Ats Riivits1
ES
Enn Saretok
board member, shareholder 29%, ultimate beneficial owner
1 other company›
CompanyRoleReg. code
Tallinn, Puhkekodu tee 59 // 61 // 63 // 65 // 67 // 69 korteriühistu
Board member
80014217
TK
Tanel Kangro
shareholder 14%
1 other company›
CompanyRoleReg. code
OÜ Mõistus ja taiplikkus
Shareholder 50%Founder
14185411
MK
Margus Kask
shareholder 15%
1 other company›
CompanyRoleReg. code
Pärnu linn, Mai tn 8 korteriühistu
Founder
80125862
IH
Ilmar Heido
shareholder 14%
1 other company›
CompanyRoleReg. code
Ilmar Heido
Sole trader
12098553
AR
Ats Riivits
shareholder 14%
1 other company›
CompanyRoleReg. code
OSAÜHING BESSI
Board memberUltimate beneficial ownerShareholder 100%
10347555