| A-L Erikssons Grönsaker Ab | Agriculture & fishing | 2000 |
| Ab Ikomo Oy | Professional & scientific | 2013 |
| Ab JMK-Milkhouse Oy | Agriculture & fishing | 2006 |
| Ab Motorservice Sibix Oy | Other services | 2017 |
| Agronomica Ab | Agriculture & fishing | 2024 |
| Assetra Group Oy | Professional & scientific | 2025 |
| BP-Metall, öppet bolag - VP-Metalli, avoin yhtiö | Wholesale & retail | 1986 |
| Bio West Oy Ab | Professional & scientific | 1999 |
| Bröderna Sjöstrand Ab Oy | Agriculture & fishing | 1996 |
| FinLingua Ab Oy | Professional & scientific | 2023 |
| Four Horsemen Oy | Real estate | 2007 |
| Groos & Söner Ab Oy | Transport & logistics | 1993 |
| Handelsträdgård Martin Sigg Ab | Agriculture & fishing | 2003 |
| Handelsträdgård Strand, öppet bolag | Agriculture & fishing | 1983 |
| Havsskog Ab | Agriculture & fishing | 2022 |
| Helge Sigg Fastighets Kb | Real estate | 1976 |
| Hellas Förlag Ab Oy | Information & communication | 2016 |
| Hälsoteket Södergård Ab | Agriculture & fishing | 1988 |
| Jomato Ab Oy | Agriculture & fishing | 2021 |
| KJA-Invest Ab | Construction | 1967 |
| Källberg Holding Oy Ab | Wholesale & retail | 2007 |
| Lillandts Grönsaker Ab | Agriculture & fishing | 1996 |
| Länsi-Suomen Mechanics Oy | Professional & scientific | 1998 |
| Nordic Energy Consulting Ab | Professional & scientific | 2023 |
| Nordic Vitality Ab | Health & social care | 2024 |
| Oy Avemer Ab | Financial services | 2010 |
| Oy Hamnskärs Lax Ab | Agriculture & fishing | 1994 |
| Oy Helge Sigg Ab | Agriculture & fishing | 1989 |
| Oy Johan Prinsén Ab | Agriculture & fishing | 2001 |
| Oy Pjelax Ringservice Ab | Wholesale & retail | 1991 |
| Oy Pjelax To-mat Ab | Construction | 2009 |
| Oy Sigg-Plant Ab | Agriculture & fishing | 2001 |
| Oy VH-Värme Ab | Energy | 2009 |
| Pjelax Fastigheter Ab | Real estate | 2014 |
| Pjelax Handelsbod, öppet bolag, avoin yhtiö | Wholesale & retail | 2003 |
| Retex Ab/Oy | Transport & logistics | 2007 |
| Retex Employment Oy Ab | Administrative & support | 1973 |
| Ricksén & Co öppet bolag | Real estate | 1980 |
| Road IT Solutions AB | Information & communication | 2024 |
| Ronnie Sigg Ab | Hospitality | 2016 |
| Rörgrunds Fisk Ab | Agriculture & fishing | 1997 |
| Sativus Ab | Administrative & support | 2020 |
| Siggarden Ab Oy | Agriculture & fishing | 2019 |
| Smulan Ab | Real estate | 2023 |
| Storm Invest Ab | Real estate | 2018 |
| T. Sigg - Inhemska Grönsaker Ab T. Sigg- Kotimaisia vihanneksia Oy | Agriculture & fishing | 2011 |
| Thor Sigg Ab | Agriculture & fishing | 1997 |