Free legal consultation for LIFT99 members

From funding, scaling and acquisition to regulatory compliance, AI, IP and data management


RASK is an Estonian top-tier law firm offering strategic legal consulting for complex technology projects and startups, specializing in fintech, defence tech, artificial intelligence and blockchain.

As the legal adviser of choice for internationally recognized Estonian technology companies like Cleveron, Net Group, Hepta Group Airborne, SpaceIt, HotelBuddy, Bisly, Vok Bikes, and many more, RASK provides expert guidance on regulatory compliance, intellectual property protection, copyright, and personal data management. Recent significant work includes the Planet42 restructuring, demonstrating RASK's strategic approach to supporting innovative ventures through sophisticated legal solutions.

RASK will have an office in Lift99 Telliskivi Hub once a month on a Wednesday. Registration opens on the first of each month.


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Meet your team



Timo Kullerkupp - partner & co-head of technology practice

Timo is a highly valued adviser to companies operating in the technology sector and has substantial experience as a legal consultant & mentor for over 100 startups. Timo consults corporate clients on legal issues related to co-founder relationships and daily economic activities, as well as complex sector-specific matters of contract law and the conduct of major international transactions.



Karl Erik Esko - attorney-at-law & co-head of technology practice

Karl Erik focuses on advising the start-up sector, fintech and defence industry companies. Karl Erik provides strategic support for clients from the earliest stages, from establishing the co-founder relationships and corporate structure to mapping the sector-specific international legal framework. He is a valued adviser on issues related to achieving investor readiness, raising capital, internationalising activities, developing an options programme, regulating shareholder relations, and resolving disputes.


Karl-Kristjan Kahm - attorney-at-law & head of corporate and M&A practice

Karl-Kristjan is one of Estonia’s top corporate law experts, specialising in large-scale mergers and acquisitions. Experienced in tech, finance, and real estate, Karl-Kristjan helps innovation leaders with an international focus scale and attract investments. He has consulted clients in acquiring loan portfolios, making real estate investments reaching into the hundreds of millions, formalising cross-border transactions, and carrying out complex acquisitions.


Kai Villemson - attorney-at-law & co-head of family and inheritance practice

Kai is an experienced attorney-at-law with extensive international legal expertise. She specializes in family and inheritance law and supports technology companies. Her professional background includes practicing law in the United States and membership in the New Jersey Bar Association, which gives her a unique global perspective on cross-border transactions, intellectual property, and corporate law. At RASK, Kai focuses on helping startups and technology businesses navigate complex legal challenges, offering strategic advice that combines legal knowledge with practical business understanding.



Ken Kaarel Gross - attorney-at-law

Ken is a versatile legal advisor supporting entrepreneurs through complex business challenges. With expertise in corporate and contract law, data protection, intellectual property, technology and energy sectors, he offers comprehensive legal guidance informed by experience in both public and private sectors. His background with Enterprise Estonia and the prosecution service enables him to provide nuanced advice on regulatory compliance, financing, and strategic business development for startups and established companies alike.

RASK is trusted by:


RASK's partner Tarmo Peterson appointed as the restructuring advisor of Planet42 Estonian association

MeetFrank recruits Compensation.app to provide real-time salary data

Estonian data labeling startup Co-One secures €640k round to power AI revolution

RASK’s attorneys-at-law Timo Kullerkupp and Kai Villemson are the legal mentors of the Ready2Scale program this year

Tallinn based startup HotelBuddy raises €420k from Startup Wise Guys

Feezy becomes Nordic Secondary Fund's second investment in Estonia

Bisly raises €1.7m to extend the team and expand to new markets