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Search›Companies›Sera Leads OÜ
16976269ActivePrivate limited companyEE102733372 · VAT-registered

Sera Leads OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Kentmanni tn 6-6·EMTAK 62101 — Computer programming activities·2+ years
Andmed · ···
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Overview

e-Business Register · 20 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
29.04.2024e-Business Register
Address
Kentmanni tn 6-6, Kesklinna linnaosa, Tallinn, 10116 Harju maakondADS · e-Business Register
E-mail address
sergio.rannula@gmail.come-Business Register
Principal activity
EMTAK 62101 - Computer programming activitiese-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
1516,45 €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

Organisation

  • About
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  • Terms
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 9 sourcese-Business Register · 4 min agoMTAEUIPOWeb tech scanEesti Internet
e-Business Register ↗

Registered 29. aprill 2024, primary activity: Computer programming activities. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 II kv
293 633 €
▲ 421% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
8
2026 (MTA)
Taxes paid
164 873 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
586k €
▲ 679% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
8
2026 (MTA)
Taxes paid
336k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Officers (2)

e-Business Register · 20 h ago
SR
Sergio Rannula
Born 1995 · 31 y · board member since 29.04.2024
Board member
KM
Karl-Jaak Maaroos
Born 1995 · 31 y · board member since 29.04.2024
Board member

Founders (2)

e-Business Register · 20 h ago
SR
Sergio Rannula
Born 1995 · 31 y · founder since 26.04.2024
Founder · 500 €
KM
Karl-Jaak Maaroos
Born 1995 · 31 y · founder since 26.04.2024
Founder · 500 €

Shareholders (8)

e-Business Register · 20 h ago
0%50%100%
Founder / management
67.1% · 3
VC
29.9% · 2
Angel
0.8% · 1

Annual reports (2)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
224k €
↗ +2564% vs 2024
Employees 2025
3
↗ +50.0% vs 2024
YearRevenueProfitEquityAssetsEmployees

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
500k €250k €0
202420252026

Tech stack

Website analysis · 21 h tagasi
Domains (1)
sera.ee
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS
Detected technologies
Payment systemMontonio
AnalyticsGoogle Analytics
OtherOpen Graph

Trademarks (0 · 1 pending)

EUIPO · 15 h tagasi
Pending applications (1)
SE
SERA
3 classes · word · 26.04.2026 · 019354400
Published

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
26.06.2026ReportEsitati 2025. aasta aruanne— Käive 223 790 €
2025
11.07.2025OfficerSai osanikuks3×expand ›hide ⌃
  • MAKI.VC FUND III KY · 17 %
  • WikiWise OÜ · · 0 %
  • Usaldusfond Specialist VC Primary and Secondary Fund II · · 12 %
11.07.2025FilingMuutmiskanne

Connected companies

Same-person ties · e-Business Register

Sera Leads OÜ is connected to 4 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Sergio Rannula (2 companies).

Total connections
4
via 2 people
Connecting people
2
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Sergio
2 companies
Via personSergio Rannula
Long tail
2.3% · 2
#ShareholderType%€
1
Sergio Rannula
Founder / management32.97%500 €
2
Karl-Jaak Maaroos
Founder / management32.97%500 €
3
MAKI.VC FUND III KY
VC17.39%263,74 €
4
Usaldusfond Specialist VC Primary and Secondary Fund II
VC12.47%189,03 €
5
Mordor Management OÜ
Long tail1.87%28,30 €
6
Oil24 OÜ
Founder / management1.12%16,98 €
7
Johan Nord
Angel0.75%11,32 €
8
WikiWise OÜ
Long tail0.47%7,08 €
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
33.0%
Top 3
83.3%
Top 5
97.7%
Top 10
100.0%
80% line
3 of 8
Gini
0.56

Dominant holder: 33.0% – non-controlling but blocking.

SR
Sergio Rannula
Born 1995 · 31 y · shareholder since 29.04.2024
Shareholder 33% · 500 €
KM
Karl-Jaak Maaroos
Born 1995 · 31 y · shareholder since 29.04.2024
Shareholder 33% · 500 €
MF
MAKI.VC FUND III KYFOREIGN
Foreign / not in register · shareholder since 11.07.2025
Shareholder 17% · 263,74 €
US
Usaldusfond Specialist VC Primary and Secondary Fund IILEGAL PERSON
Legal person · 16392077 · shareholder since 11.07.2025
Shareholder 12% · 189,03 €
MM
Mordor Management OÜLEGAL PERSON
Legal person · 14166520 · shareholder since 19.06.2024
Shareholder 2% · 28,30 €
OO
Oil24 OÜLEGAL PERSON
Legal person · 14804179 · shareholder since 19.06.2024
Shareholder 1% · 16,98 €
JN
Johan NordRootsi · Sweden
Born 1980 · 45 y · shareholder since 19.06.2024
Shareholder 1% · 11,32 €
WO
WikiWise OÜLEGAL PERSON
Legal person · 12797162 · shareholder since 11.07.2025
Shareholder 0% · 7,08 €
2025223 790 €−228 128 €1,5m €1,6m €326.06.2026
20248400 €−147 153 €184k €214k €230.06.2025
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I-II Q585 535 €187 239 €148 839 €8
2025357 813 €124 186 €108 582 €6
2024I-IV Q11 347 €25 785 €27 353 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026292k €294k €––
State taxes 202699k €89k €––
Taxes on workforce 202673k €76k €––
Employees 202678––
Revenue 202519k €56k €94k €188k €
State taxes 202514k €24k €19k €68k €
Taxes on workforce 202518k €18k €19k €54k €
Employees 20251156
Revenue 2024–16 €2k €10k €
State taxes 2024–0 €9k €16k €
Taxes on workforce 2024–0 €10k €17k €
Employees 2024––11
2×
expand ›
hide ⌃
  • Ä 50254118 / 3 · Olek: Jõustunud
  • Kanne nr 3 · kanne
30.06.2025ReportEsitati 2024. aasta aruanne— Käive 8400 €
2
Karl-Jaak Maaroos2
SR
Sergio Rannula
board member, founder, shareholder 33%
2 other companies›
CompanyRoleReg. code
Indust Marketplace Osaühing
Founder
16138947
Oil24 OÜ
Founder
14804179
KM
Karl-Jaak Maaroos
board member, founder, shareholder 33%
2 other companies›
CompanyRoleReg. code
Evid Solutions OÜ
LiquidatorShareholder 85%Founder
16038588
Flake Tech OÜ
LiquidatorShareholder 85%Founder
16234740

Analysis · 2025

computed from annual reports
Revenue224k €median 50k €4.5× the sector median
Net margin-101.9%median 12.1%-114.1 pp vs sector median
Revenue per employee75k €median 70k €1.1× the sector median
Revenue change2,564.2%median 3.4%+2,560.8 pp vs sector median
Equity ratio92.6%
Current ratio11.78
Labour cost of revenue156.5%
Profit per employee−76 043 €
Compared with2024revenue 8k €

Peer group: Programmeerimine, 5,817 trading companies that filed a report in the last three years.

Founded 2024. That year 22,386 osaühing were registered; 21,869 are still trading, or 97.7%.