Helsinki Office

Our office in Ruoholahti, Helsinki is located a short distance from the city center and is easy to get to via public transportation. There are some 140 financial management professionals working here at our Administer headquarters, ready to help you and your company. Ruohoparkki parking garage offers good parking facilities right next to our office.


+358 20 703 2000


Itämerenkatu 5, 00180 HELSINKI


+358 20 703 2010
Open Monday to Friday from 9 a.m. to 4 p.m.
Service requests online:

Billing address

E-invoices: 003705930274
Operator: BasWare, BAWCFI22


Paper invoices: Administer Oy

Contact Sales

Get in touch and let’s arrange a meeting! At the meeting we will take a look into your business and by the end of the meeting you will have a concrete suggestion of how to make the most of your financial management.

Olli Mäki

Senior Sales Manager
+358 44 292 1246

Juha Nupponen

Sales Manager, municipalities and public corporations, Kuntalaskenta Oy
+358 40 550 5813

Sergei Mokhovik

Sales Manager
+358 40 123 9485


There are a limited number of disc parking spaces on the courtyard of Itämerenkatu 5 allowing free parking for one hour. You can find more one-hour free disc parking spaces at Itämerenkatu 2. Ruohoparkki parking garage next door from the office offers parking for longer stays. Entrance to Ruohoparkki via the ramp in front of Itämerenkatu 5 – down and left. You can find another entrance to the parking garage on Porkkalankatu. Ruohoparkki is a public garage with plenty of space always available. The park meters are located on the first floor of the stairway.

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