Contact information

Jaakob Solla
Jaakob Solla
Executive vice president
Matti Anttila
Matti Anttila
Lead architect, strategic development and sales
Berit Freivald
Berit Freivald
Lead architect, country manager
J-P Lehtinen
J-P Lehtinen
Lead architect, housing and hybrid design
Juha Lehtonen
Juha Lehtonen
Lead architect, industrial and premises
Kyösti Meinilä
Kyösti Meinilä
Lead architect
Tuomas Seppänen
Tuomas Seppänen
Lead architect, property development and planning
Liisa Tuohimaa
Liisa Tuohimaa
Lead architect, innovation and sustainability
Harri Ahokas
Harri Ahokas
Lead architect, technology
Tapani Eronen
Tapani Eronen
Lead architect, office manager Helsinki
Anssi Hakarinne
Anssi Hakarinne
Head of MedTech Unit
Agu Külm
Agu Külm
Lead architect, hospital design
Hanna Rantanen
Hanna Rantanen
Marketing & development director
Anne Routaniemi
Anne Routaniemi
Lead designer, interior design
Nina Väistö
Nina Väistö
Lead architect, hospital and healthcare design
Jussi Murole
Jussi Murole
Lead architect

Our locations

We are always looking for skilled architecture students to join our team!

Office • Helsinki

Ruoholahdenkatu 21, 00180 Helsinki
Tel. +358 20 791 1555
one@onearchitects.fi

Good enough isn’t. Our new office located in Kamppi, in the city center, is a house of 80 skilled architects and interior architects. Welcome to meet and greet us!

Office • Tallinn

Rotermanni 18/1, 10111 Tallinn, Estonia
Tel. +372 525 2184
one@onearchitects.ee

We have the courage to do things differently. Our compentent team of architects in Tallinn is working in the modern Rotermanni quarter. We are happy to help!

Invoicing details • Helsinki

Billing addresses:
ONE Architects Oy
Puutarhakatu 10, FI-33210 Tampere
Company ID: 0979166-2

Basware service ID: BAWCFI22
Electronic invoice address: 003709791662

Email address (PDF-invoices):
aw2-architects@bscs.basware.com

We no longer accept paper invoice.

Invoicing details • Tallinn

Billing addresses:
ONE Architects Oy Eesti filiaal
Rotermanni 18/1, EE-10111 Tallinn 

Reg.nr: 14368643 

KMKR nr: EE101441034

Bank details: 

Swedbank EE932200221068311015 

SWIFT kood/BIC: HABAEE2X

Email address (PDF-invoices): kairi@ykssarv.ee

Let’s Connect! How Can We Help?