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SIOS system Ab

ActiveBusiness ID 3577483-1Limited companyEst. 202571127 · Mechanical and process engineering design and technical consultancyMariehamn, Ahvenanmaa
Official record ↗
Ageless than a year
older than 4% of its sector
Same activity, Finland1,698live companies · 1625th oldest
In Mariehamn1,801live companies · 9 in the same activity
At this address1only this company

In brief

SIOS system Ab is a limited company registered in Finland on 12 November 2025. It is less than a year old; 96% of the 1,698 live companies whose main activity is mechanical and process engineering design and technical consultancy are older. Its registered office is in Mariehamn, Maarianhamina - Mariehamn, Ahvenanmaa. 9 live companies in Mariehamn share the same main activity.

Register details

Registered nameSIOS system Ab
Business ID3577483-1
Company typeLimited company
Registered office22100 Mariehamn
Nature of business (TOL 2025, Finnish SIC)71127 Mechanical and process engineering design and technical consultancy
International sector (ISIC Rev.4)M · 71 Architectural and engineering activities; technical testing and analysis

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated12 November 2025
VAT registerRegistered
Employer registerNot registered

Mechanical and process engineering design and technical consultancy in Finland

Live companies whose main activity is 71127: 1,698 in total, median age 15 years, 76 incorporated in the past 12 months.

All 1,698 companies
This company's decadeOther decades
02004006008001940s: 221940s1970s: 19191970s1980s: 1531531980s1990s: 2562561990s2000s: 3143142000s2010s: 4944942010s2020s: 4604602020s
Incorporated per year, still live
02550751002011: 6120112012: 442013: 4320132014: 402015: 3520152016: 552017: 4820172018: 482019: 6320192020: 672021: 6820212022: 592023: 5320232024: 712025: 7720252026: 65

Location

Registered office in Mariehamn, Maarianhamina - Mariehamn, Ahvenanmaa.

Live companies in Mariehamn1,801
Same activity in Mariehamn9
Live companies in Maarianhamina - Mariehamn1,801
New in Mariehamn, past 12 months101

Similar companies

Live companies with the same main activity, nearest first.

Compare all
JM
JC MAR CONSULTING ABMariehamn, Ahvenanmaa
Number 3601315-3Est. 2026
JM
JAS Marine Consulting AbMariehamn, Ahvenanmaa
Number 3601728-5Est. 2026
M
MarPo AbMariehamn, Ahvenanmaa
Number 3013836-9Est. 2019
NP
Novamare Partners AbMariehamn, Ahvenanmaa
Number 2981465-7Est. 2019
EE
eMarine Engineering Åland AbMariehamn, Ahvenanmaa
Number 2931860-2Est. 2018
BN
Baltic Naval Solutions AbMariehamn, Ahvenanmaa
Number 2856388-4Est. 2017

Sources

Register data: Finnish Patent and Registration Office (PRH) open data (CC BY 4.0), delivery of 20 October 2026. Municipalities, regions and industry classification: Statistics Finland (CC BY 4.0). Context figures are computed by FirmsDB from these sources. This page is not an official register; check the company's entry in the Finnish Business Information System before relying on it.