Ida Illman

Associate, Master of Laws

I advise our domestic and international clients on assignments related to technology, data, and contract law. In addition, I assist clients with matters concerning intellectual property, consumer protection, and marketing law.

I graduated from the University of Helsinki in the summer of 2025. My thesis focused on the Data Act and the protection of trade secrets, reflecting my interest in analysing how the new data and digital legislation and the technological development are reshaping traditional legal frameworks and the business environment.

Before joining Castrén & Snellman, I gained experience in various trainee roles in both the private and public sectors, including working on technology and intellectual property matters at another law firm and on contract law issues in the public healthcare sector.

Latest references

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 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 General Catalyst as lead investor on ICEYE’s EUR 150 million series E funding round, valuing the company at EUR 2.4 billion. ICEYE is the world leader in synthetic aperture radar (SAR) satellite systems and operates the largest SAR constellation globally. Its technology delivers objective, near real-time Earth observation in any weather or light conditions, enabling governments and institutions to manage risks and respond faster. General Catalyst is a global investment and transformation company, partnering with leading entrepreneurs to build toward global resiliency and applied AI. Its portfolio includes companies such as Airbnb, Snap, Stripe, Mistral AI, Hubspot, Anduril, Helsing and Legora. We advised General Catalyst on this transaction in collaboration with the US law firm Goodwin. 
Case published 8.12.2025
We advised Efima Oyj on the sale of its AI business to Better Care Technologies Oy. The transaction included Efima’s Moiva AI platform developed for the care sector, the related technology and brand, customer contracts, and the experts working in the business. 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 21.9.2026
We advised Neoen Renewables Finland Oy, part of the French Neoen Group, in its sale of a data centre project to a consortium consisting of international data centre developers and operators. This marked Neoen’s first data centre development project in Finland. Founded in 2008, Neoen is one of the world’s leading independent renewable energy producers. The company operates in 15 countries. It develops, finances, builds, owns, and operates solar power plants, wind farms, and battery storage systems. Neoen Group is owned by global alternative asset manager Brookfield Corporation.
Case published 17.9.2026
We advised Jolt Capital and Tesi in connection with their investment in VEV, a leading provider of commercial fleet electrification solutions. The investment, led by Jolt Capital with Tesi as co-investor, will support VEV’s next phase of growth and expansion across Europe. As part of the transaction, VEV became an independent company following the acquisition of Vitol’s stake in the business. Founded by Vitol, VEV provides integrated fleet electrification solutions combining fleet strategy, charging infrastructure, energy supply and operational services. Through its VEV IQ platform, the company supports more than 6,000 commercial electric vehicles across Europe and has been deployed across more than 600 sites spanning the transport, logistics and waste sectors. Jolt Capital is a private equity firm focused on growth investments in European deeptech companies. Tesi is a Finnish state-owned investment company that promotes Finnish business and economic growth through investments. We advised Jolt Capital and Tesi on the equity financing and structuring aspects of the transaction. International law firm Goodwin advised the investors on the acquisition of VEV.
Case published 10.9.2026
VR-Group Plc is a transport and logistics group owned by the Finnish State, operating passenger and freight rail transport in Finland with activities also in the Swedish market. VR Group provides passenger, logistics and maintenance services with over 160 years’ experience in developing responsible transport of the future. We advise VR Group in intellectual property matters as part of the company’s wider brand protection efforts. Our assignments have included advice on copyright, design rights and trademarks, focusing on the protection of the company’s visual identity – including its distinctive green colour – in connection with transport services as part of a comprehensive IP protection strategy. VR Group’s consistent brand building has also received recognition, including the Finland Chamber of Commerce’s Brand of the Year award in 2026. In the competition, brands were viewed comprehensively from various perspectives, including their story, strategic role, brand renewal ability and intellectual property protection. The jury found that VR had understood the importance of the protection of its brand as part of a comprehensive business strategy. 
Case published 9.9.2026
We advised NoHo Partners Plc on the issuance of EUR 50 million senior secured floating rate notes. The notes have a tenor of four years and mature on 10 September 2030. The notes bear interest at a rate of three-month EURIBOR plus a margin of 4.375 per cent. per annum. The notes were allocated to a mix of domestic and international investors. We also advised NoHo Partners on the negotiation of its new senior facilities agreement. The facilities agreement comprises a EUR 60,000,000 term loan facility, a EUR 10,000,000 capex facility and a EUR 27,000,000 revolving credit facility. “We are delighted by the interest investors have shown in the company’s Notes, which reflects confidence in our strategy. The successful issuance of the Notes, together with the new loan agreement, extends the maturity profile of our financing and enables the company to continue executing its growth strategy going forward. I would like to thank all investors for their participation, as well as our partner bank for the excellent execution of the Notes issuance”, says Jarno Suominen, CEO of NoHo Partners. OP Corporate Bank plc acted as the sole lead manager and bookrunner for the issue of the notes. NoHo Partners Plc is a Finnish group established in 1996, and it specialises in restaurant services being the creative innovator of the Northern European restaurant market. The company was listed in Nasdaq Helsinki in 2013 becoming the first Finnish listed restaurant company, and it has continued to grow strongly throughout its history. NoHo Partners’ vision is to be the leading restaurant operator in Northern Europe.
Case published 4.9.2026