Business profile

Topmast Oy

Topmast Oy's registered office is Lahti. It is a limited company. The company was established on 2023-09-28. It operates in the industry of construction of utility projects for electricity and telecommunications. In its latest retained statement for 2025-03-31, revenue was €357,101 and operating profit was €91,607.

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Business ID 3392629-9ValidUnclaimed company profile

Trusted core data

Public company details from the trade register.

Business ID
3392629-9
Sector
Construction of utility projects for electricity and telecommunications
Municipality
Lahti
Company form
Limited company
Registration date
2023-09-28
Business ID registration date
2023-09-26
Business status
Valid
Profile ownership
Unclaimed company profile
Data source
Public registry data

Contact and location summary

Visiting address: Mustatiaisenkatu 15, 15680, Lahti

About Topmast Oy

Financial position and key figures for the company.

Topmast Oy's location municipality is Lahti. It is a limited company. The company was established on 2023-09-28. It operates in the industry of construction of utility projects for electricity and telecommunications. In its latest retained statement for 2025-03-31, revenue was €357,101 and operating profit was €91,607. The latest retained financial statement for 2025-03-31 shows revenue of €357,101 and profit for the financial year of €72,435. Based on the latest retained statement, revenue growth was +890.6%, operating margin was +25.7%, and equity ratio was +73.3%.

Financial highlights

Key figures from the latest financial period.

Open full statement
Latest financial period

2025-03-31

Imported periods2
PRH parsed2
Profile sourcePRH/XBRL financial statement
Derived indicators
Revenue growth890.6%
Operating margin25.7%
Equity ratio73.3%
Balance-sheet contextLatest retained period snapshot
Cash and bank€53,111Previous: €792
Retained earnings€594Previous: €0
Equity€73,030Previous: €594
Liabilities€26,537Previous: €11,917
Current assets€99,567Previous: €12,511
Current liabilities€26,537Previous: €11,917
Revenue trend2 periods
€36,049
2024-03-31
€357,101
2025-03-31
Operating profit (loss) trend2 periods
€784
2024-03-31
€91,607
2025-03-31
Profit (loss) for the financial year trend2 periods
€594
2024-03-31
€72,435
2025-03-31
Assets trend2 periods
€12,511
2024-03-31
€99,567
2025-03-31

Financial ratios

Financial ratios based on financial statement data. Source: PRH/XBRL-tilinpäätös.

Equity ratioGood
92/100 · Improving
73.3 %2024-03-31: 4.8 %
Current ratioGood
67/100 · Improving
2.00x2024-03-31: 0.07x
Operating profit marginGood
100/100 · Improving
25.6 %2024-03-31: 2.2 %
Ratio history
Ratio2024-03-312025-03-31
Equity ratio4.8 %73.3 %
Current ratio0.07x2.00x
Operating profit margin2.2 %25.6 %

Registry status and identifiers

Verified registry memberships and identifiers from the latest retained YTJ snapshot.

YTJ statusValid
Trade RegisterRegistered
Business ID3392629-9
VAT IDFI33926299
EU IDFIFPRO.3392629-9
MunicipalityLahti
Current registered entries
2023-09-26Registered in Tax Administration (Employer Register)
2023-09-26VAT-liable for business activity in Tax Administration (VAT Register)
2023-09-26Registered in Tax Administration (Prepayment Register)
2023-09-28Registered in Tax Administration (Tax Administration)
2023-09-28Registered in Patent and Registration Office (Trade Register)

Risk certificate

An open-data based company stability and risk signal.

BUSINESS.fi

BUSINESS.fi Luottoluokitus

Profile-specific risk signal based on open data

Financial data includedNot a credit decision
A3
GoodTopmast Oy
Updated2026-08-24
ConfidenceHigh
Score78/100

The grade can use open digital financial statement data together with registry signals.

Risk context

When open digital financial statements are unavailable, BUSINESS.fi shows registry, industry, and regional context.

Industry riskelevated
48/100

Industry context is elevated based on normalized open statistical inputs.

Age and continuityNuori
15/100

The company has about 2 years of registry continuity.

Registry and status signalsRajallinen
44/100

Registry history, filing recency, and active register markings are still limited or mixed.

Registry timeline

Trade register notifications shown on a timeline.

4 register eventsLatest event: 2025-11-21

Financial statements availability

Available statement periods and links into the retained/parsible financial statement surfaces. Use the latest statement page for deeper line-item detail.

2 financial statement periodsLatest financial period: 2025-03-31

Profile source and ownership

Profile based on public registry data
BUSINESS.fi has created this profile from public company information. Source data updated 2026-02-03.

This company profile has not been claimed yet

Topmast Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.