Merilampi is ranked as a “Highly Recommended” law firm in the 15th Edition (2015) of the GCR 100, a guide to the world’s leading competition law and economics practices. GCR 100 is compiled by the staff of Global Competition Review, the world's leading antitrust and competition law journal and news service, and it offers a comprehensive listing of the world’s top antitrust and competition practices.

GCR 100 states the following about Merilampi’s competition law practice in its survey:

“Who’s Who Legal Competition nominee Arttu Mentula leads the competition group at Merilampi, practising with partner Erkko Ruohoniemi and a team of one specialist counsel and five associates.

The firm has a solid behavioural and transactional record, with particular expertise in the regulated energy and telecoms markets. On the cartel side, it advised Koivunen in the authority investigation and later court cases regarding collusion in the car part market, and continues to defend the company from damages claims. It also represents Skanska in the asphalt follow-on litigation. The firm also successfully represented five local dairies in the Valio abuse of dominance case. Additionally, the group continues to act for Finland’s leading telecom operator, Elisa, in various competition law and regulatory matters.”