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Search›Companies›Contestor OÜ
11078790ActivePrivate limited companyEE100962255 · VAT-registered

Contestor OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, A. Lauteri tn 8-37·EMTAK 71121 — Constructional engineering-technical designing and consulting·21+ years
Andmed · ···
On this page
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Overview

e-Business Register · 19 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
14.10.2004e-Business Register
Address
A. Lauteri tn 8-37, Kesklinna linnaosa, Tallinn, 10114 Harju maakondADS · e-Business Register
E-mail address
contestor@contestor.eee-Business Register
Telephone
+372 5072600· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 71121 - Constructional engineering-technical designing and consultinge-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
2556,00 €e-Business Register
LEI
25490083NEV49WA90B60 · lapsed · issued 31.03.2020 · renewal overdue 498dGLEIF
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
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donate
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 12 sourcese-Business Register · 6 min agoMTARTKMTRRiigi Teataja · RiigikohusWeb tech scanEesti InternetGLEIF
e-Business Register ↗

Registered 14. oktoober 2004, primary activity: Constructional engineering-technical designing and consulting. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 II kv
68 309 €
▼ 9% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
13 870 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
134k €
▼ 15% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
25k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Officers

e-Business Register · 19 h ago
JK
Jürgen Kallo
Born 1982 · 44 y · board member since 19.11.2019
Board member

Founders

e-Business Register · 19 h ago
JK
Jürgen Kallo
Born 1982 · 44 y · founder since 14.10.2004
Founder

Shareholders

e-Business Register · 19 h ago
JK
Jürgen Kallo
Born 1982 · 44 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Subsidiaries

e-Business Register · shareholders · 19 h ago
Contestor OÜ11078790Shareholder 100%Darlene OÜ14284952Korsika OÜ14038845Shareholder 50%Longterm OÜ14511247Shareholder 50%OÜ Ellind17135974

Annual reports (7)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
309k €
↗ +32.6% vs 2024
State taxes 2025
60k €
↗ +238% vs 2024
Employees 2025
1
0.0% vs 2024
YearRevenueProfit

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
100k €50k €0

Licences (3)

MTR · 18 h tagasi
Active licences
3
Other3
Oldest · Newest
2017→2017
Oldest licenceEEH010182 · 04.10.2017
Active3 / 3
EEH010182
Ehitamine
Majandustegevusteade
From04.10.2017
UntilOpen-ended
Valid

Tech stack

Tehnoloogiad
Domains (2)
contestor.ee
SPF
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS
Detected technologies
OtherOpen Graph · Schema.org
CDNCloudflare
ehitusekspert.ee

Court rulings (2 · 2 as respondent)

Riigi Teataja

Role in proceedings2019–2023

2 with a known role
Respondent 2100%
20231 decision
30.03.20232-22-4461/34
Võlaõigus › Laenu- ja krediidilepingudHarju Maakohus Tallinna kohtumajaOther parties: Osaühing Interest Marketing (Hageja)Decision PDF →On Riigi Teataja →

State-sector payments (1 · 504,38 €)

RTK Makseandmik · 15.05.2026
Transactions
1
2025–2025 · 1 year
Total amount
504,38 €
avg 504,38 €
Buyers
1
State and municipal bodies
Latest
20.11.2025
504,38 € · Tallinna Strateegiakeskus
20251 transaction · 504,38 €
20.112025
Tallinna Strateegiakeskus75023817
SOTSIAALTOETUSED ·

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
26.06.2026ReportEsitati 2025. aasta aruanne— Käive 309 185 €
2025
24.09.2025ReportEsitati 2024. aasta aruanne— Käive 233 120 €
15.08.2025FilingTrahvihoiatusmäärus: majandusaasta aruanne esitamata— Ä 10083614 / M14 · Olek: Puudused kõrvaldatud
2024
20.09.2024ReportEsitati 2023. aasta aruanne— Käive 292 857 €

Connected companies

Same-person ties · e-Business Register

Contestor OÜ is connected to 8 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Jürgen Kallo (8 companies).

Total connections
8
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Jürgen
8 companies
Via personJürgen Kallo
Shareholder 50%Wallenhof OÜ14548167Wallenstein OÜ14719887
  • Darlene OÜ (14284952) Shareholder 100%
  • Longterm OÜ (14511247) Founder, Shareholder 50%
  • OÜ Ellind (17135974) Founder, Shareholder 50%
  • Wallenhof OÜ (14548167) Shareholder 50%
  • Korsika OÜ (14038845) Shareholder 100% (via Darlene OÜ)
  • Wallenstein OÜ (14719887) Founder, Shareholder 100% (via Wallenhof OÜ)
Contestor OÜ is a shareholder or officer in 6 more companies.
Equity
Assets
Employees
2025309 185 €126 447 €2,0m €2,9m €126.06.2026
2024233 120 €207 219 €1,9m €2,8m €124.09.2025
2023292 857 €−171 417 €1,7m €2,3m €020.09.2024
2022286 581 €126 405 €1,8m €2,4m €001.12.2023
2021188 141 €242 855 €1,7m €2,4m €013.07.2022
2020130 926 €140 271 €1,5m €2,4m €009.06.2022
2019233 175 €69 751 €1,3m €2,4m €107.06.2022
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 Q133 549 €23 087 €2178 €1
2025307 737 €60 082 €7020 €1
2024196 770 €17 788 €5292 €1
2023302 957 €42 161 €0 €–
2022216 225 €29 215 €0 €–
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202665k €68k €––
State taxes 202610k €13k €––
Taxes on workforce 20261k €1k €––
Employees 202611––
Revenue 202581k €75k €75k €77k €
State taxes 202515k €13k €14k €18k €
Taxes on workforce 20252k €2k €2k €2k €
Employees 20251111
Revenue 202457k €60k €36k €45k €
State taxes 20247k €0 €5k €5k €
Taxes on workforce 20240 €2k €2k €2k €
Employees 20241111
Revenue 202378k €68k €67k €90k €
State taxes 202312k €9k €9k €13k €
Taxes on workforce 20230 €0 €0 €0 €
Employees 2023––––
Revenue 202255k €76k €37k €48k €
State taxes 20228k €11k €2k €8k €
Taxes on workforce 20220 €0 €0 €0 €
Employees 2022––––
EEO003957
Omanikujärelevalve
Majandustegevusteade
From04.10.2017
UntilOpen-ended
Valid
EEP003956
Projekteerimine
Majandustegevusteade
From04.10.2017
UntilOpen-ended
Valid
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS
Could not analyse (HTTP 403)
Mobile carrier
+372 5072600Telia Eesti AS

Veebilehte ei õnnestunud analüüsida (HTTP 403).

On lahend.ee →
KostjaJõustunud
20191 decision
14.11.20192-19-123844/5
Võlaõigus › Muud lepingud teenuste osutamiseksHarju Maakohus Tallinna kohtumajaOther parties: Osaühing EUROPARK ESTONIA (Hageja)Decision PDF →On Riigi Teataja →On lahend.ee →
KostjaJõustunud
Muu majandus (sh majanduse haldus)
504 €
30.08.2024
FilingAruandetrahvimäärus— Ä 10083614 / M13 · Olek: Jõustunud
8
JK
Jürgen Kallo
board member, founder, shareholder 100%
8 other companies›
CompanyRoleReg. code
Darlene OÜ
Board member
14284952
Longterm OÜ
Board member
14511247
OÜ Ellind
FounderBoard memberShareholder 50%
17135974
Tallinn, Kollane tn 9 korteriühistu
Board member
80618694
Tallinn, Pärnu mnt 8 // Väike-Karja tn 9 korteriühistu
Board member
80181524
Waldstein OÜ
Shareholder 100%FounderBoard member
14900322
Wallenhof OÜ
Board member
14548167
Wallenstein OÜ
Board member
14719887

Analysis · 2025

computed from annual reports
Revenue309k €median 36k €8.6× the sector median
Net margin40.9%median 19.2%+21.7 pp vs sector median
Revenue per employee309k €median 64k €4.9× the sector median
Revenue change32.6%median 5.4%+27.2 pp vs sector median
Equity ratio68.4%
Current ratio0.19current assets cover under 1× liabilities
Labour cost of revenue5.2%
Profit per employee126 447 €
Compared with2024revenue 233k €

Peer group: Ehituslik insener-tehniline projekteerimine ja nõustamine, 1,820 trading companies that filed a report in the last three years.

Founded 2004. That year 3,425 osaühing were registered; 3,309 are still trading, or 96.6%.