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Search›Companies›Heisenberg Ehrmantraut OÜ
12791691ActivePrivate limited company

Heisenberg Ehrmantraut OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Tartu mnt 2·EMTAK 70201 — Business and other management consultancy activities·11+ years
Andmed · ···
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Overview

e-Business Register · 22 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
30.01.2015e-Business Register
Address
Tartu mnt 2, Kesklinna linnaosa, Tallinn, 10145 Harju maakondADS · e-Business Register
E-mail address
lauri.isotamm@me.come-Business Register
Telephone
+372 56800415· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 70201 - Business and other management consultancy activitiese-Business Register · ETCB
Share capital
2500,00 €e-Business Register
LEI
98450036A54L01B88679 · issued 02.12.2025GLEIF
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
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donate
  • Donation terms
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  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Revenue
45 954 €
▲ 16% vs 2024
Employees
–
2025 annual report
Taxes paid
–
Tax debt
0 €
As of 13.08.2026 (MTA)

Registered 30. jaanuar 2015, primary activity: Business and other management consultancy activities. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Data · 6 sourcese-Business Register · 8 min agoGLEIF
e-Business Register ↗
Revenue
46k €
▲ 16% vs 2024
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 13.08.2026 (MTA)

Officers

e-Business Register · 22 h ago
LI
Lauri Isotamm
Born 1974 · 52 y · board member since 30.01.2015
Board member

Founders

e-Business Register · 22 h ago
LI
Lauri Isotamm
Born 1974 · 52 y · founder since 29.01.2015
Founder · 3k €

Shareholders

e-Business Register · 22 h ago
LI
Lauri Isotamm
Born 1974 · 52 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Subsidiaries

e-Business Register · shareholders · 22 h ago
Heisenberg Ehrmantraut OÜ12791691Shareholder 25%NOEP Distillery OÜ16863476Shareholder 38%Siena Venture Partners OÜ16076815
Heisenberg Ehrmantraut OÜ is a shareholder or officer in 2 more companies.

Annual reports (7)

e-Business Register · annual reports · 9 päeva tagasi
Revenue 2025
46k €
↗ +16.0% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Tech stack

Tehnoloogiad
Mobile carrier
+372 56800415Telia Eesti AS

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
28.07.2026ReportEsitati 2025. aasta aruanne— Käive 45 954 €
2025
29.12.2025FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50001745 / 8 · Olek: Jõustunud
  • Kanne nr 8 · kanne
03.11.2025FilingMuutmiskanne2×expand ›

Connected companies

Same-person ties · e-Business Register

Heisenberg Ehrmantraut OÜ is connected to 7 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Lauri Isotamm (7 companies).

Total connections
7
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Lauri
7 companies
Via personLauri Isotamm
202545 954 €315 982 €1,0m €1,2m €028.07.2026
202439 600 €68 722 €890k €927k €005.08.2025
202348 600 €50 461 €821k €859k €011.07.2024
202237 825 €45 675 €771k €808k €025.08.2023
202113 200 €33 969 €725k €762k €029.06.2022
2020–1677 €691k €795k €025.05.2022
2019–691 129 €690k €1,2m €009.07.2021
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
hide ⌃
  • Ä 50001745 / 7 · Olek: Jõustunud
  • Kanne nr 7 · kanne
05.08.2025ReportEsitati 2024. aasta aruanne— Käive 39 600 €
7
LI
Lauri Isotamm
board member, founder, shareholder 100%
7 other companies›
CompanyRoleReg. code
AS LHV Group
Founder
11098261
MAI Baltics Advisory OÜ
FounderShareholder 50%
12709790
Oaklins Estonia OÜ
FounderShareholder 30%
16422080
osaühing APSPROG
Shareholder 17%
10152260
Siena Holding OÜ
Board memberFounderShareholder 33%
12658992
Siena Venture Partners OÜ
Board member
16076815
Tallinn, F. R. Kreutzwaldi tn 7 // Raua tn 16 korteriühistu
Board member
80351854

Analysis · 2025

computed from annual reports
Revenue46k €median 29k €1.6× the sector median
Net margin687.6%median 21.7%+665.9 pp vs sector median
Revenue change16.0%median 0.2%+15.8 pp vs sector median
Equity ratio90.1%
Current ratio9.06
Labour cost of revenue0.0%
Compared with2024revenue 40k €

Peer group: Äri- ja muu juhtimisalane nõustamine, 7,464 trading companies that filed a report in the last three years.

Founded 2015. That year 10,359 osaühing were registered; 9,970 are still trading, or 96.2%.