Risk grade updatedRisk gradeEvidence verified
18 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B2.Business profile
Isännöintikeskus Tammen Oy
Isännöintikeskus Tammen Oy's registered office is Lahti. It is a limited company. The company was established on 2023-01-03. It operates in the industry of other real estate activities on a fee or contract basis. In its latest retained statement for 2024-12-31, revenue was €921,150 and operating profit was €90,245.
Business ID 3334148-5ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 3334148-5
- Sector
- Other real estate activities on a fee or contract basis
- Municipality
- Lahti
- Company form
- Limited company
- Registration date
- 2023-01-03
- Business ID registration date
- 2022-12-29
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: Harjukatu 22 A 2, 15110, Lahti
Phone: +35837559820Source observation
Email: [email protected]Source observation
Website: https://www.tammentalot.fiSource observation
People and decision-makers
Antti KallioToimitusjohtaja
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Sari HalonenDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Satu LehtolaDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Päivi SuomelaDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Petri KoljonenDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Kimmo SalonenDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Veera LehtoDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Hanna LahtinenDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Mari VuoriDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Satu Ala-RöysköDecision-maker
Email: Email available for logged-in usersSource: company website
Phone: Phone available for logged-in usersSource: company website
Direct contact details available for logged-in usersSome person-level contact details are shown only to registered users. The data is based on public sources, such as the company's own website.Log in to view decision-maker contact details
About Isännöintikeskus Tammen Oy
Financial position and key figures for the company.
Isännöintikeskus Tammen Oy's location municipality is Lahti. It is a limited company. The company was established on 2023-01-03. It operates in the industry of other real estate activities on a fee or contract basis. In its latest retained statement for 2024-12-31, revenue was €921,150 and operating profit was €90,245. The latest retained financial statement for 2024-12-31 shows revenue of €921,150 and profit for the financial year of €27,273. Based on the latest retained statement, revenue growth was -2.3%, operating margin was +9.7%, and equity ratio was +3.0%.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2024-12-31
0
0
Enriched source observation
Derived indicators
Revenue growth-2.3%
Operating margin9.7%
Equity ratio3.0%
Revenue€921,150-€21,345 (-2.3%) vs previous periodPrevious: €942,495
Operating profit (loss)€90,245+€47,734 (+112.3%) vs previous periodPrevious: €42,511
Profit (loss) for the financial year€27,273+€29,358 (+1408.1%) vs previous periodPrevious: -€2,085
Assets€833,396-€39,722 (-4.5%) vs previous periodPrevious: €873,117
Balance-sheet contextLatest financial period
Profit before taxes€33,588Previous: -€2,085
Revenue trend2 periods
€942,495
2023-12-31
€921,150
2024-12-31
Operating profit (loss) trend2 periods
€42,511
2023-12-31
€90,245
2024-12-31
Profit (loss) for the financial year trend2 periods
-€2,085
2023-12-31
€27,273
2024-12-31
Assets trend2 periods
€873,117
2023-12-31
€833,396
2024-12-31
Financial ratios
Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.
Equity ratioWeak
4/100 · Improving
Current ratioNot assessable
0/100 · Trend unavailable
Operating profit marginSatisfactory
74/100 · Improving
Ratio history
| Ratio | 2023-12-31 | 2024-12-31 |
|---|---|---|
| Equity ratio | -0.2 % | 3.0 % |
| Current ratio | - | - |
| Operating profit margin | 4.5 % | 9.7 % |
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID3334148-5
VAT IDFI33341485
EU IDFIFPRO.3334148-5
MunicipalityLahti
Current registered entries
2023-01-01Registered in Tax Administration (Employer Register)
2023-01-01VAT-liable for business activity in Tax Administration (VAT Register)
2023-01-03Registered in Patent and Registration Office (Trade Register)
2023-01-05Registered in Tax Administration (Tax Administration)
2023-01-24Registered in Tax Administration (Prepayment Register)
Responsible people
Public role relationships materialized from source observations.
Direct contact details available for logged-in users.
Antti KallioToimitusjohtajaSources: 1 · Confidence: 76%
Kallio Antti JohannesVarsinainen jäsenSources: 2 · Confidence: 78%
Ekaterina MiettinenHallitus: varajäsenSources: 1 · Confidence: 76%
Eeva HiltunenTilintarkastajaSources: 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
B2
SatisfactoryIsännöintikeskus Tammen Oy
Grade upgradedB3 → B2 · new analysis 2026-10-18
50/100
Medium
Usable financial evidenceFinancial data included
Financial development is mostly stable or mixed.
2 comparable periodsRevenueStable
ProfitabilityImproving
SolvencyStable
LiquidityNot enough history
Same industry, size and age groupDescriptive comparison – does not change the model score.
127 peersSolvency18%
Below 82% of peers
Profitability34%
Below 66% of peers
Revenue growth24%
Below 76% of peers
Supporting factors
- Strong operating profitability
- Active registered status
- A newer financial statement filing has been reported
Risk factors to note
No material separate warning signals.
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessmentsB2
2026-10-1850/100 · v0.15
B3 → B2 · +1 points- Evidence quality: Strong financial evidence → Usable financial evidence.
- Risk factor cleared: High balance-sheet leverage.
B3
2026-09-2549/100 · v0.14
Oldest retained automatic assessment in this comparisonB2
2026-10-18
open-risk-grade-v0.15
The grade can use open digital financial statement data together with registry signals.
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 riskmedium
53/100
Industry context is medium based on normalized open statistical inputs.
Age and continuityNuori
35/100
The company has about 3 years of registry continuity.
Registry and status signalsRajallinen
48/100
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
25 Sept 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B3.Registry timeline
Trade register notifications shown on a timeline.
9 register eventsLatest event: 2026-03-22
Profile source and ownership
Profile based on public registry data
BUSINESS.fi has created this profile from public company information. Source data updated 2026-03-22.
This company profile has not been claimed yet
Isännöintikeskus Tammen Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.