15.8.2022

Intellectual Property and Technology Expert Petteri Günther Joins Castrén & Snellman

Petteri Günther has joined Castrén & Snellman’s Intellectual Property and Data & Technology practices as counsel on 15 August. Petteri has a profound understanding of intellectual property, media law, the regulation of new technologies, and vast experience in digitalisation-related projects. Copyright law and copyright-related issues in a range of industries are part of this core expertise.

Prior to joining Castrén & Snellman, Petteri worked as senior legal counsel at Elisa. Before his position at Elisa, Petteri practiced law in the private sector for over 10 years.

Petteri has also been active in academia: he has completed master’s degrees in law at both the University of Helsinki and Stockholm University, and also holds a master’s degree and a doctorate in economics from Hanken School of Economics in Helsinki. Petteri’s PhD thesis was on digital content distribution and copyright in the information society. He has also been a visiting researcher at the University of Oxford and visiting scholar at Stanford Law School as well as a guest researcher at the Max Planck Institute for Intellectual Property and Competition Law.

‘I am excited to go back into private practice. There will be many familiar faces at Castrén & Snellman, but I am also looking forward to meeting new colleagues and taking on interesting projects and clients’, Petteri says.

The Intellectual Property and Data & Technology teams are happy to welcome Petteri.

‘We will benefit from Petteri’s extensive expertise in intellectual property rights and technology. His versatile background in the private sector, business and academia make him an excellent counsel for our clients in matters relating to new technologies and business models – and a great colleague’, says Partner, Head of IP Sakari Salonen.

‘Petteri has a strong background as an IP and tech attorney and particular expertise in the regulation of technology and the legal aspects of digitalisation. We are glad to have a very versatile lawyer like Petteri on our team’, says Partner Kim Parviainen.

We must take a deeper look at developments in data and technology – new regulation is not always required

Having worked in the audio-visual, music and game industries, Petteri has had a clear view into how copyright and regulation issues have changed in recent years.

‘Copyright was first introduced to protect original literary or artistic works, but today copyright is at the core of many fields such as software development. At the same time for instance the entertainment industry has increasingly become service-based: it is no longer about distributing copies of individual works but giving access to those, of which streaming services are a good example. Similar development is happening in other fields as well, such as the automotive industry.’ 

Changes in the markets have given rise to increasing regulatory changes. The European Union in particular has introduced a lot of new regulation. Petteri is critical of new regulation without clearly defined objectives and thorough impact assessments: before enacting new legislation there should be a clearer idea of what societal problem the legislation would address and how it would solve that problem, including how the legislation would impact markets in practice.

Petteri also stresses that new phenomena may not always require new regulation.

‘New phenomena often have their roots in concepts that are already established in the market, and the existing regulation may be fit for tackling new challenges. That is why it is important to look past the surface level when it comes to new phenomena.’ 

Castrén & Snellman’s Intellectual Property team is one of Finland’s leading and most experienced IP practices. Our versatile team of lawyers and experts covers every area of IP, from protection to commercialisation and enforcement. Our expertise and the solutions we provide have repeatedly been acknowledged in the top tier by international directories such as Chambers Europe and Global, Legal500, Managing IP, World Trademark Review and IAM Patent 1000.

Latest references

We advised Efima Oyj on the sale of its financial management services business to Rantalainen as part of its strategic focus on fully concentrating on the delivery of business applications as well as data and AI solutions. As a result of the transaction, customer contracts related to financial management services and 65 experts working in these services will transfer to Rantalainen. The transaction will be carried out as a transfer of business, and the experts will move to the new owner as existing employees. Efima is a Finnish digital company that supports the sustainable growth of large and mid-sized companies by streamlining their business processes and by creating competitive advantage through the innovative use of artificial intelligence and data. The company has nearly 200 experts based in Helsinki and Tampere.
Case published 12.6.2026
We advised lead investor Ugly Duckling Ventures on the EUR 6.5 million funding round of Skyfora. The round also included Eviny Ventures, LUMO Labs and EIC Fund, alongside non-dilutive funding from Business Finland. The investment will support the commercial scale-up of Skyfora’s weather intelligence solutions, the expansion of partnerships with telecom operators, forecasting providers and meteorological institutions, and the continued growth of the team. Skyfora is a Finnish company developing high-resolution weather data solutions using patented technology that extracts atmospheric data from GNSS receivers embedded in existing infrastructure, such as telecom networks. By unlocking previously untapped data sources, Skyfora enables the next generation of AI-driven weather forecasting and supports improved decision-making across weather-sensitive industries. Ugly Duckling Ventures is a Copenhagen-based venture capital firm focused on early-stage Nordic B2B technology companies, with an emphasis on medtech, resilience tech and business services.
Case published 10.6.2026
castren snellman general atlantic iceye
We advised General Atlantic as the lead investor on ICEYE’s EUR 1 billion series F funding round, valuing the company at over EUR 10 billion. ICEYE raised EUR 450 million (USD 520 million) in a primary Series F funding round led by General Atlantic. Additional investors included Solidium, Tesi, Varma, Ilmarinen, Lifeline Ventures, Nokia, Qatar Investment Authority (QIA) and TCV. Together with a secondary placement, the total fundraising exceeds EUR 1 billion. ICEYE is the world leader in sovereign intelligence from space, providing continuous monitoring capabilities to detect and respond to changes in any location on Earth. The company operates the world’s largest and most advanced Synthetic Aperture Radar satellite constellation. General Atlantic is a leading global investor with more than four and a half decades of experience providing capital and strategic support for over 885 companies throughout its history. As of March 31, 2026, General Atlantic manages approximately USD 126 billion in assets across its investment strategies. We advised General Atlantic on this transaction in collaboration with the international law firm Paul, Weiss, Rifkind, Wharton & Garrison.
Case published 9.6.2026
We advised Oomi Solar Oy on the sale of a solar power park and battery energy storage project to Tuulipolar Oy. The transaction concerned a 24 MWp solar power plant and a 36 MW / 70 MWh battery energy storage system (BESS) to be constructed in Tornio. Tuulipolar Oy will act as the owner and operator of the plant, while Oomi Solar Oy will be responsible for its design and construction. The project will form the world’s northernmost industrial hybrid power plant, contributing to Finland’s green energy transition by increasing renewable energy production and electricity storage capacity in Northern Finland. The hybrid solution enables optimization of production as well as active participation in electricity markets and reserve services, improving the project’s profitability and supporting the balance of the electricity system year-round. Electricity production from the hybrid plant is expected to begin in 2028. Oomi Solar Oy is a Finnish renewable energy expert with experience from nearly 200 MW of installed solar capacity. The company helps businesses and communities accelerate the green transition by offering comprehensive solutions, including solar power plants, energy storage systems, and related lifecycle services from project development to maintenance. Oomi Solar Oy employs more than 20 energy professionals and delivers solar power projects across Finland. The company’s vision is to be Finland’s most desired partner for solar energy and energy solutions.
Case published 5.6.2026