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SLL-Consulting Oy
OY
Active
Y-tunnus 0892332-8
Hitsaajankatu 22, 00810
Helsinki
Business and other management consultancy activities
· NACE 7020
Est. 1992
— employees
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SLL-Consulting Oy
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (1)
OA
Ona Alexandra Gardemeister
Chief Executive Officer
Chief Executive Officer
2017
Former (2)
IT
Ilkka Taneli Mustonen
Deputy auditor
Deputy auditor
2016 – 2023
RO
Risto Olavi Ekholm
Audit
Audit
2016 – 2024
Board of directors
Non-executive oversight
Name
Role
Member since
Current (3)
JA
Jyri Alarik Aho
Chairperson
2023
TJ
Tuomas Jussi Pitkänen
Board of Directors
2025
JM
Juha Mikael Koivu
Board of Directors
2025
Former (6)
JT
Jan-Markus Tapani Hietanen
Board of Directors
2023 – 2024
HT
Heli Tuulikki Lindqvist
Board of Directors
2024 – 2025
PJ
Peter Johan Östman
Chairperson
2018 – 2023
PE
Petteri Erik Viitaniemi
Board of Directors
2018 – 2019
KS
Katri Susanna Koskela
Board of Directors
2021 – 2025
AM
Ari Matti Kesti
Board of Directors
2019 – 2021
Shareholders
As of last annual report
No shareholder data available.
Beneficial ownership (UBO) data access is restricted in Denmark as of September 2025 per the EU 6th AML Directive.
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