Kolster is one of the biggest patent and trade mark prosecution firms in the country, with large teams of attorneys dedicated to a wide variety of technical specialisations. It has 120 IP professionals across six offices in Finland; accounts for 27% of revenues in the patent and trade mark sector and 32% of personnel; and files about 2000 patent applications a year. The firm's biggest clients are ABB, Sanvix and Metro. The firm's advisors are active in teaching and academia and have roles on boards of numerous IP organisations. Clients recommend a number of attorneys including Juha Kaukonen, Kimo Tuttela, Sami Aromaa and Mikko Alatossova. The firm manages a programme that helps companies partly or fully outsource their IP management. "It is a very good service," says one client, "it lets you then concentrate on the work that you have". The client adds that the team that supports him "is very receptive... I can say anything to them and they take it on board, they have good communication skills and are humble". Another client uses Kolster as "it has broad expertise in all IP".