Contact information
Stonegroup Finland Oy
Phone number
Our locations
- ORIVESI SHOWROOM | Koulutie 44, 35300 Orivesi
- HELSINKI SHOWROOM | Mannerheimintie 25, 00250 Helsinki
- QUARRY, WAREHOUSE AND PRODUCTION | Yliskyläntie 378, 35100 Orivesi
Write your contact details and we will get in touch with you. You can also call us, send an email, or contact us via WhatsApp. We are available on weekdays from 8:00 to 17:00.
Sales team

Arttu Jokinen
CEO
Arttu is the CEO of Stonegroup, an entrepreneur, and a specialist in natural stone solutions. With strong expertise in stone construction, he helps clients find the right materials and develop tailored solutions for both residential and commercial projects.
Mobile: +358 400 818 639
arttu@stonegroup.fi

Pirkka Kallio
SALES MANAGER
Pirkka is an expert in natural stone materials and helps you choose the ideal solution for your project. From natural stone façades to elegant residential flooring, he ensures the result is both functional and visually refined.
Mobile: +358 400 142 175
pirkka@stonegroup.fi

Niko Hildén
SALES MANAGER
Niko is responsible for Stonegroup’s deliveries, ensuring efficient and on-time operations. He also manages the slate business and the reseller network. With strong expertise and experience, Niko guarantees smooth collaboration and dependable service.
Mobile: +358 44 793 7940
niko@stonegroup.fi

Sini Linna
Creative Director
Sini, a partner at Stonegroup and a creative specialist, brings warmth and fresh ideas to support your project planning. Ask for one idea and you’ll get three – her expertise combines new perspectives into beautiful and functional solutions.
(On parental leave)
Mobile: +358 41 506 6083
sini@stonegroup.fi

Mervi Närvänen
Natural Stone Sales Specialist
Mervi offers expert guidance in all natural stone-related matters. Her extensive knowledge and holistic approach ensure efficient, customer-oriented solutions tailored to each project.
Mobile: +358 44 722 3915
mervi@stonegroup.fi

Senni Jokinen
CONTROLLER
Senni is responsible for Stonegroup’s financial administration and also supports customers with professional service. She oversees product and service quality management, ensuring that customer needs and expectations are met at every stage.
Mobile: +358 41 506 6066
senni@stonegroup.fi

Caroline Nygård
Natural stone sales specialist
Caroline works with domestic customers and is also responsible for Stonegroup’s Swedish-speaking clients. She is a creative and dedicated professional with a strong customer focus, helping clients turn their ideas into high-quality, successful project outcomes.
Mobile: +358 44 711 5266
caroline@stonegroup.fi

Tuomo Jokinen
FOUNDER
Tuomo is a founding partner of Stonegroup with over 40 years of experience in the natural stone industry and construction. He continues to be involved in sales, often from the terrace of his summer cottage, and remains actively engaged in the company’s board work.
Mobile: +358 400 95 1919
tuomo@stonegroup.fi

Matti Kyntäjä
Chair of the Board
Matti Kyntäjä, M.Sc. and Construction Counsellor, has guided Stonegroup’s journey from a quarrying company to a versatile natural stone specialist for over 20 years. Today, he is responsible for the company’s development in his role as Chair of the Board.
Mobile: +358 400 23 4482
matti@stonegroup.fi
Direct contact details for factory sales, central warehouse and production operations
Laskutustiedot
-
Factory sales (open during the summer season)
Jukka Mäki
jukka@stonegroup.fi
mob. +358 40 037 1476 -
Central warehouse (by appointment in January)
tuotanto@stonegroup.fi
mob. +358 44 796 7199 -
Production (suljettuna tammikuussa)
tuotanto@stonegroup.fi
mob. +358 44 796 7199
We kindly ask that invoices are primarily sent as e-invoices. Our e-invoicing details are as follows:
STONEGROUP FINLAND OY
E-invoice address (OVT): 003709868041
Operator: MAVENTA
If you are unable to send e-invoices, please send invoices by email to:
Business ID: 0986804-1 (Stonegroup Finland Oy)We kindly request that all invoices are submitted primarily as e-invoices.