Risk grade updatedRisk gradeEvidence verified
17 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B3.Business profile
Tammen Koru Oy Tammi Jewellery
Tammen Koru Oy Tammi Jewellery's registered office is Lieto. It is a limited company. The company was established on 2001-06-30. It operates in the industry of manufacture of jewellery and related articles. In its latest retained statement for 2024-09-30, revenue was €107,267 and operating profit was €2,328.
Business ID 1669917-8ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 1669917-8
- Sector
- Manufacture of jewellery and related articles
- Municipality
- Lieto
- Company form
- Limited company
- Registration date
- 2001-06-30
- Business ID registration date
- 2001-02-01
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: Avantintie 5, 21420, Lieto
Phone: +358445567606Source observation
Website: https://www.tammijewellery.comSource observation
Instagram profile: https://www.instagram.com/tammijewellerySource: company website
Facebook profile: https://www.facebook.com/tammijewellerySource: company website
People and decision-makers
Saarikko Miia MarianneToimitusjohtaja
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 Tammen Koru Oy Tammi Jewellery
Financial position and key figures for the company.
Tammen Koru Oy Tammi Jewellery's location municipality is Lieto. It is a limited company. The company was established on 2001-06-30. It operates in the industry of manufacture of jewellery and related articles. In its latest retained statement for 2024-09-30, revenue was €107,267 and operating profit was €2,328. The latest retained financial statement for 2024-09-30 shows revenue of €107,267 and profit for the financial year of €537. Based on the latest retained statement, revenue growth was -22.7%, operating margin was +2.2%, and equity ratio was -4.7%.
Auxiliary business names
Public alternate names materialized from source observations.
Tammi Finland
Financial highlights
Key figures from the latest financial period.
Latest financial period
2024-09-30
0
0
Enriched source observation
Derived indicators
Revenue growth-22.7%
Operating margin2.2%
Equity ratio-4.7%
Revenue€107,267-€31,481 (-22.7%) vs previous periodPrevious: €138,748
Operating profit (loss)€2,328+€20,630 (+112.7%) vs previous periodPrevious: -€18,302
Profit (loss) for the financial year€537+€21,777 (+102.5%) vs previous periodPrevious: -€21,240
Assets€311,878-€3,619 (-1.1%) vs previous periodPrevious: €315,496
Balance-sheet contextLatest financial period
Profit before taxes€537Previous: -€21,240
Employees1Previous: 1
Revenue trend4 periods
€138,969
2021-09-30
€208,555
2022-09-30
€138,748
2023-09-30
€107,267
2024-09-30
Operating profit (loss) trend4 periods
€3,238
2021-09-30
€913
2022-09-30
-€18,302
2023-09-30
€2,328
2024-09-30
Profit (loss) for the financial year trend4 periods
€1,606
2021-09-30
-€142
2022-09-30
-€21,240
2023-09-30
€537
2024-09-30
Assets trend4 periods
€406,865
2021-09-30
€383,641
2022-09-30
€315,496
2023-09-30
€311,878
2024-09-30
Financial ratios
Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.
Equity ratioWeak
0/100 · Improving
Current ratioNot assessable
0/100 · Trend unavailable
Operating profit marginPassable
55/100 · Improving
Ratio history
| Ratio | 2021-09-30 | 2022-09-30 | 2023-09-30 | 2024-09-30 |
|---|---|---|---|---|
| Equity ratio | 1.5 % | 1.6 % | -4.8 % | -4.7 % |
| Current ratio | - | - | - | - |
| Operating profit margin | 2.3 % | 0.4 % | -13.2 % | 2.2 % |
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID1669917-8
VAT IDFI16699178
EU IDFIFPRO.1669917-8
MunicipalityLieto
Current registered entries
2001-03-29Registered in Tax Administration (Tax Administration)
2001-06-30Registered in Patent and Registration Office (Trade Register)
2001-07-01VAT-liable for business activity in Tax Administration (VAT Register)
2001-07-01Registered in Tax Administration (Prepayment Register)
Responsible people
Public role relationships materialized from source observations.
Direct contact details available for logged-in users.
Saarikko Miia MarianneToimitusjohtajaSources: 5 · Confidence: 78%
Saarikko Miia MarianneVarsinainen jäsenSources: 2 · Confidence: 78%
Kauppi Mikko JohannesVarajäsenSources: 2 · Confidence: 78%
Juha HeikkolaPäävastuullinen tilintarkastajaSources: 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
B3
MonitorTammen Koru Oy Tammi Jewellery
Grade unchangedB3 · new analysis 2026-10-17
42/100
Low
Usable financial evidenceFinancial data included
Several key financial indicators have weakened across comparable fiscal periods.
4 comparable periodsProfitabilityVolatile
LiquidityNot enough history
Same size nationallyDescriptive comparison – does not change the model score.
1443 peersSolvency12%
Below 88% of peers
Profitability35%
Below 65% of peers
Revenue growth10%
Below 90% of peers
Supporting factors
- Active registered status
- A newer financial statement filing has been reported
- Long registry continuity
Risk factors to note
- Negative equity
- Parsed financial metrics are older than the newest reported filing
- Coordinated deterioration across 2 financial domains
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessmentsB3
2026-10-1742/100 · v0.15
B3 → B3- Risk factor cleared: High balance-sheet leverage.
B3
2026-09-1942/100 · v0.14
Oldest retained automatic assessment in this comparisonB3
2026-10-17
open-risk-grade-v0.15
The grade can use open digital financial statement data together with registry signals.
A serious financial risk signal affects this grade. Review the profile financial indicators as well.
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 riskvery low
91/100
Industry context is very low based on normalized open statistical inputs.
Age and continuityVakiintunut
90/100
The company has about 25 years of registry continuity.
Registry and status signalsVakaa
87/100
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
19 Sept 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B3.Registry timeline
Trade register notifications shown on a timeline.
24 register eventsLatest event: 2026-08-22
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
Tammen Koru Oy Tammi Jewellery shows public core facts. A company representative can claim the profile, update public information, and access owner tools.