Risk grade updatedRisk gradeEvidence verified
19 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade A3.Business profile
Tammer Invest Oy
Tammer Invest Oy's registered office is Helsingfors. It is a limited company. The company was established on 2015-10-28. It operates in the industry of rental and operating of own or leased non-residential real estate.
Business ID 2713818-1ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 2713818-1
- Sector
- Rental and operating of own or leased non-residential real estate
- Municipality
- Helsingfors
- Company form
- Limited company
- Registration date
- 2015-10-28
- Business ID registration date
- 2015-09-25
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: PL 30, 00131, Helsinki
Postal address: P.O. Box 30, 00131, Helsingfors
Website: https://tammerlaki.fiSource observation
People and decision-makers
Isomaa Anita MariaToimitusjohtaja
About Tammer Invest Oy
Financial position and key figures for the company.
Tammer Invest Oy's location municipality is Helsingfors. It is a limited company. The company was established on 2015-10-28. It operates in the industry of rental and operating of own or leased non-residential real estate.
Auxiliary business names
Public alternate names materialized from source observations.
Tammer koulutusTammer laki
Extended business activity
A longer directory- or registry-backed activity description that complements the short registry industry label.
Yhtiön toimialana on osakehuoneistojen omistaminen ja vuokraus, muu sijoitustoiminta sekä kaikki muu laillinen liiketoiminta.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2025-12-31
0
0
Enriched source observation
Profit (loss) for the financial year-€4,743+€2,377 (+33.4%) vs previous periodPrevious: -€7,120
Assets€159,770-€19,454 (-10.9%) vs previous periodPrevious: €179,223
Balance-sheet contextLatest financial period
Employees0Previous: 0
Revenue trend3 periods
€70,176
2021-12-31
€59,410
2022-12-31
€12,144
2023-12-31
Operating profit (loss) trend3 periods
€106,395
2021-12-31
€29,095
2022-12-31
€15,693
2023-12-31
Profit (loss) for the financial year trend5 periods
€81,141
2021-12-31
€19,908
2022-12-31
€17,712
2023-12-31
-€7,120
2024-12-31
-€4,743
2025-12-31
Assets trend5 periods
€753,472
2021-12-31
€389,098
2022-12-31
€201,363
2023-12-31
€179,223
2024-12-31
€159,770
2025-12-31
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID2713818-1
EU IDFIFPRO.2713818-1
MunicipalityHelsingfors
Current registered entries
2015-10-28Registered in Patent and Registration Office (Trade Register)
2015-11-03Registered in Tax Administration (Tax Administration)
Responsible people
Public role relationships materialized from source observations.
Isomaa Anita MariaToimitusjohtajaSources: 4 · Confidence: 78%
Isomaa Anita MariaPuheenjohtajaSources: 3 · Confidence: 78%
Myllymäki Janne Markus JohannesVarsinainen jäsenSources: 4 · Confidence: 78%
Jari MyllymäkiHallitus: varajäsenSources: 1 · Confidence: 76%
Risk certificate
An open-data based company stability and risk signal.
BUSINESS.fi
BUSINESS.fi Luottoluokitus
Profile-specific risk signal based on open data
Automatic gradeNot a credit decision
A3
GoodTammer Invest Oy
Grade unchangedA3 · new analysis 2026-10-19
73/100
Medium
Limited financial evidenceRegistry and statistics based
Supporting factors
- Active registered status
- Long registry continuity
- Lower industry distress context
Risk factors to note
- Sufficient structured financial metrics are not available
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessmentsA3
2026-10-1973/100 · v0.15
A3 → A3A3
2026-10-1173/100 · v0.14
Oldest retained automatic assessment in this comparisonA3
2026-10-19
open-risk-grade-v0.15
The grade uses registry, industry, and regional signals because sufficient source-backed financial metrics are not available for a Tier 1 assessment.
Risk context
When sufficient source-backed financial metrics are not available for a Tier 1 assessment, BUSINESS.fi shows registry, industry, and regional context.
Industry risklow
77/100
Industry context is low based on normalized open statistical inputs.
Age and continuityVakiintunut
80/100
The company has about 10 years of registry continuity.
Registry and status signalsSeurattava
63/100
Registry history, filing recency, and active register markings are still limited or mixed.
Events & news
Verified events and sourced external company news in one timeline.
Risk grade updatedRisk gradeEvidence verified
11 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade A3.Registry timeline
Trade register notifications shown on a timeline.
13 register eventsLatest event: 2025-05-20
Profile source and ownership
Profile based on public registry data
BUSINESS.fi has created this profile from public company information. Source data updated 2025-12-31.
This company profile has not been claimed yet
Tammer Invest Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.