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Search›Companies›HEATCON OÜ
14383654ActivePrivate limited companyEE102037780 · VAT-registered

HEATCON OÜ

Viljandi maakond, Viljandi vald, Sinialliku küla, Sooniku tee 7·EMTAK 71121 — Constructional engineering-technical designing and consulting·8+ years
Andmed · ···
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Overview

e-Business Register · 13 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
04.12.2017e-Business Register
Address
Sooniku tee 7, Sinialliku küla, Viljandi vald, 71105 Viljandi maakondADS · e-Business Register
E-mail address
lauri.tonisalu@gmail.come-Business Register
Telephone
+372 5027534· 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
2500,00 €e-Business Register
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

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  • 79 sources
  • Database
  • Extensions
  • MCP

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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 7 sourcese-Business Register · 5 min agoMTARTK
e-Business Register ↗

Registered 4. detsember 2017, primary activity: Constructional engineering-technical designing and consulting. Main place of business in Sinialliku küla, Viljandi vald, Viljandi maakond.

Revenue 2026 II kv
2080 €
▼ 68% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
468 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 11.08.2026 (MTA)
Revenue 2026 (I-II kv)
6k €
▼ 48% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
2k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 11.08.2026 (MTA)

Officers

e-Business Register · 13 h ago
LT
Lauri Tõnisalu
Born 1985 · 41 y · board member since 04.12.2017
Board member

Founders

e-Business Register · 13 h ago
LT
Lauri Tõnisalu
Born 1985 · 41 y · founder since 04.12.2017
Founder · 3k €

Shareholders

e-Business Register · 13 h ago
LT
Lauri Tõnisalu
Born 1985 · 41 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Annual reports (7)

e-Business Register · annual reports · 6 päeva tagasi
Revenue 2025
17k €
↗ +484% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
200k €100k €0

Tech stack

Tehnoloogiad
Mobile carrier
+372 5027534Telia Eesti AS

State-sector payments (1 · 4k €)

RTK Makseandmik · 15.05.2026
Transactions
1
2025–2025 · 1 year
Total amount
4k €
avg 4k €
Buyers
1
State and municipal bodies
Latest
13.02.2025
4k € · Tori Vallavalitsus
20251 transaction · 4k €
13.022025
Tori Vallavalitsus77000341
MAJANDAMISKULUD · Põhi- ja üldkeskharidus

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
02.07.2026ReportEsitati 2025. aasta aruanne— Käive 16 799 €
2025
30.06.2025ReportEsitati 2024. aasta aruanne— Käive 2878 €

Connected companies

Same-person ties · e-Business Register

HEATCON OÜ is connected to 3 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Lauri Tõnisalu (3 companies).

Total connections
3
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Lauri
3 companies
Via personLauri Tõnisalu
202516 799 €16 161 €82k €144k €002.07.2026
20242878 €2268 €66k €149k €030.06.2025
202315 992 €−3682 €64k €149k €030.06.2024
2022207 500 €45 463 €68k €174k €025.06.2023
20210 €−551 €22k €197k €028.06.2022
2020–−1024 €23k €85k €030.06.2021
20190 €−5532 €24k €60k €130.06.2020
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 Q6320 €1503 €0 €–
202516 877 €2355 €0 €–
20242478 €78 €0 €–
202315 898 €1741 €0 €–
2022191 030 €35 964 €0 €–
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 20264k €2k €––
State taxes 20261k €468 €––
Taxes on workforce 20260 €0 €––
Employees 2026––––
Revenue 20256k €6k €5k €0 €
State taxes 20251k €123 €1k €–
Taxes on workforce 20250 €0 €0 €–
Employees 2025––––
Revenue 20240 €0 €1k €1k €
State taxes 2024–18 €29 €31 €
Taxes on workforce 2024–0 €0 €0 €
Employees 2024––––
Revenue 2023−94 €0 €0 €16k €
State taxes 20238 €––2k €
Taxes on workforce 20230 €––0 €
Employees 2023––––
Revenue 2022187k €407 €4k €0 €
State taxes 202234k €–4 €1k €
Taxes on workforce 20220 €–0 €0 €
Employees 2022––––
3677 €
3
LT
Lauri Tõnisalu
board member, founder, shareholder 100%
3 other companies›
CompanyRoleReg. code
Mittetulundusühing Loojuv Päikesekiir
Board memberFounder
80404579
TJ Hooldus OÜ
Board member
12286071
Viljandi linn, C. R. Jakobsoni tn 26a korteriühistu
Board member
80601952

Analysis · 2025

computed from annual reports
Revenue17k €median 36k €47% of the sector median
Net margin96.2%median 19.3%+76.9 pp vs sector median
Revenue change483.7%median 5.5%+478.3 pp vs sector median
Equity ratio57.1%
Current ratio2.33
Labour cost of revenue0.0%
Compared with2024revenue 3k €

Peer group: Ehituslik insener-tehniline projekteerimine ja nõustamine, 1,821 trading companies that filed a report in the last three years.

Founded 2017. That year 14,399 osaühing were registered; 13,843 are still trading, or 96.1%.