5.11.2023

Law student, apply now for the most popular traineeships of the summer. Join us at Castrén & Snellman for the summer of your life!

We are looking for junior and senior trainees for the summer of 2024. These four-month trainee periods start on 6 May 2024.

Castrén & Snellman is a law firm of over 300 people. We are a forerunner of sustainability in the legal services industry, enabling our clients to build sustainable success stories. We are driven by the spark to provide the best legal service in Finland and to be the best workplace in the legal sector. Our hope is that our trainees share our values – the Spark, Respect, Courage and Responsibility – and contribute to our excellent team spirit.

We offer full-time summer trainee positions for students at different stages in their studies. All of our trainee programmes are paid. Each year, over a hundred students join us to gain experience of business law and the daily routines of a law firm by participating in client work as well as the development of our firm.

For more information on our trainee programmes and working with us, please visit our Careers page and social media channels. You can also find answers to frequently asked questions about trainee programmes in our FAQ.


Take a look at the daily work of our trainees in our Instagram stories.

You can see our trainees at work on Instagram by following our my week series. You will also have the opportunity to ask our trainees about their experience.

• Junior trainees: 8 November.

• Senior trainees: 15 November.

Apply for a summer trainee position by 20 November and come join us in building sustainable success stories!

Our business is to enable our clients’ success and ensure their legal protection. We are the forerunners of demanding legal services, such as mergers and acquisitions, dispute resolution and all other areas of business law.

Castrén & Snellman is an international law firm seeing growth in the Nordics. What makes us stand out is our straight-forward way of working, our true collaboration across teams and our long tradition of exceeding expectations. When clients face challenging situations, we offer our internationally recognised competence, clear thinking and solution-oriented experts.

Latest references

We advised G&W Electric with its acquisition of Safegrid Oy, a leading provider of intelligent grid monitoring solutions based in Finland. The acquisition accelerates G&W Electric’s long-term strategy to integrate intelligent monitoring and predictive analytics into its power distribution portfolio, strengthening its offering to utility customers worldwide. Founded in 1905 and headquartered in Bolingbrook, Illinois, G&W Electric is a global leader in innovative power grid solutions, with a presence in over 100 countries. The company is known for advanced load and fault interrupting switches, reclosers, sensors, system protection equipment, power grid automation, intelligent grid monitoring, and transmission and distribution cable accessories. Safegrid is a Finnish technology company headquartered in Espoo, Finland. The company develops the Intelligent Grid System®, a grid monitoring solution that combines instant-on wireless sensors with advanced analytics to deliver real-time insight into grid conditions, enabling utilities to identify emerging issues, anticipate failures, and reduce outage duration across medium and high voltage distribution and transmission networks.
Case published 8.5.2026
We advised Kiwa in its acquisition of Sertio Oy, a Finnish notified body designated by the authority in accordance with the EU Regulation on in vitro diagnostic medical devices (IVDR). Sertio provides conformity assessment services in accordance with IVDR. Kiwa is one of the world’s leading testing, inspection, and certification companies, operating in over 35 countries. 
Case published 7.5.2026
We advised Metsäkonepalvelu Oy in its acquisition of the entire share capital of Junnonen Forest Oy, a Finnish timber harvesting services company, and the timber harvesting services business of Lamerit Oy. The acquisition supports Metsäkonepalvelu’s growth strategy and strengthens the company’s position, particularly in southeastern Finland. Metsäkonepalvelu is a portfolio company of A. Ahlström Oy, a Finnish family-owned industrial owner. The company provides mechanical timber harvesting services to forest companies, large private forest owners, and the public sector in Finland and Sweden. Metsäkonepalvelu Group employs nearly two hundred forestry professionals.
Case published 6.5.2026
We acted as Finnish counsel to Scanreco in its acquisition of CrossControl. Mannheimer Swartling (Sweden) acted as lead counsel for Scanreco. CrossControl, founded in Sweden, is a high-tech supplier of advanced display computers and central vehicle computing solutions for industrial vehicles and machines. Scanreco is a world leading supplier of professional radio remote control systems to international machinery, heavy equipment, and crane manufacturers. The combined group comprises approximately 600 employees and generates annual revenue of around SEK 1.4 billion.
Case published 5.5.2026