We create legal solutions that help our bold clients to move the world forward.

Our experts provide legal services through independent offices in Helsinki, San Francisco and Berlin.

Pekka Aho,Counsel, Helsinki

Pekka is a dispute resolution specialist with strong experience in litigation and international arbitration. Pekka is a leading expert in sports law. He has acted as counsel in over a hundred sports-related dispute resolution proceedings.​

Since 2019, Pekka has acted as an arbitrator in the Court of Arbitration for Sport (CAS) in Lausanne, Switzerland.​ Pekka is also a mediator approved by the Finnish Bar Association.​

Mariella Både-Landell,Partner, Helsinki

Mariella holds over ten years of experience in demanding banking and financing transactions. Mariella advises both borrowers and lenders in a wide range of bank financing, project financing and restructuring arrangements. She has been appraised by the clients for her practical and business-minded approach with a can-do, deal making attitude for getting the deal done.

Mariella has been ranked by Chambers and Partners in the field of Banking and Finance in 2023 and by IFLR1000 in 2021. Before joining Dottir, Mariella has worked in a major Finnish law firm.

Joonas Dammert,Senior Associate, Helsinki

Joonas advises clients on privacy-, e-commerce and consumer protection law, IPR, regulatory matters and ICT/commercial contracts. He has been certified as an international privacy professional (CIPP/E). Joonas is also trained on the bench.​

Prior to joining Dottir, Joonas worked as an associate lawyer in an international law firm and as a trainee in some of the major Finnish law firms. Joonas holds an LLM degree from the University of Helsinki in addition to a bachelor degree in political sciences.

Katja Häkkinen,Counsel, Helsinki

Katja advises clients on M&A, company law, venture capital and corporate governance. Katja is a versatile M&A professional with several years experience in counselling on various kinds of international and domestic mergers and acquisitions, private equity, venture capital investments and corporate law matters. Katja is a certified board member (HHJ) and has acted regularly as the secretary of the Board of Directors.

Katja is ranked as a Rising Star in IFLR1000 EMEA 2023 (M&A). Prior to joining Dottir, Katja has worked at a leading Nordic law firm and an innovative legal services company in Helsinki. Katja has also background of sports advisory at the international hockey agency.

Niko Johansson,Partner, Helsinki

Niko has over ten years of experience in banking and financing transactions. Niko advises a wide variety of clients, ranging from leading banks and financial institutions to growth companies. Niko is a leading practitioner especially in bond issuances and private debt arrangements, as well as a trusted advisor for bank financing.

In addition, Niko advises clients in M&A and ECM transactions.

Johanna Juntunen,Finance Assistant, Helsinki

Johanna works as a Finance Assistant and supports Dottir's lawyers with invoicing and other finance related tasks.

Prior to joining Dottir, Johanna has worked in a major Finnish law firm as well as a large Finnish energy company. Johanna holds a Bachelor of Business Administration degree from Haaga-Helia University of Applied Sciences.

Juhani Jämsä,Associate, Helsinki

Juhani is on secondment until 30 April 2024.


Juhani advises clients on banking and financing transactions, as well as various kinds of corporate matters.

Prior to joining Dottir, Juhani worked in the M&A practise of a major Finnish law firm.

Aino Kimppa,Operations Manager, Helsinki

Aino supports the management and employees of Dottir in administrative tasks and coordinates activities required to run the office. Also, Aino has a major role in planning, coordinating and implementing internal processes and workflows.

Aino holds a Bachelor of Business Administration degree from Haaga-Helia University of Applied Sciences.

Paula Kivelä,Senior Finance Specialist, Helsinki

Paula is a senior specialist in Dottir's finance team. Paula organises and coordinates Dottir's finance activities and processes.

Paula has previously worked at Nokia Corporation and Microsoft Mobile as an Executive Assistant. Paula brings her long expertise from bigger companies to Dottir and ensures the smooth running of our office.

Pihla Knaapila,Head of People & Culture, Helsinki

Pihla manages Dottir's HR matters. She joined the firm in 2016 as a legal tainee and worked as an associate lawyer specializing in commercial contracts, data protection and entertainment law until 2022. Pihla has played a pivotal role in establishing and developing Dottir's HR function. She also has a central role in Dottir's employer branding matters.

Pihla holds an LLM degree from the University of Turku.

Anna Kuusi,Counsel, Helsinki

Anna is a Counsel in Dottir’s dispute resolution practice advising clients and acting as counsel in a wide range of commercial and corporate disputes. Anna has notable experience of various sectors, incl. technology, construction, media and creative industries. Anna is an attorney and a member of the Finnish Bar. She is also trained on the bench.​

Anna acts as counsel and as a mediator in mediation proceedings. She is also qualified to act as an arbitrator in commercial arbitration proceedings.

Viktor Kvist,Associate, Helsinki

Viktor advises clients on banking and financing transactions, private equity and venture capital investments, corporate matters and commercial contracts.

Prior to joining Dottir, Viktor has worked at a venture capital fund and in major law firms in Finland. Viktor speaks fluent Swedish, Finnish and English.

Sohrab Känkänen,Associate, Helsinki

Sohrab advises clients on a variety of IT & technology law related matters, both contractual and regulatory, covering areas such as IT procurement, data and general information technology. Sohrab has special knowledge in emerging technologies, especially in artificial intelligence, crypto, blockchain and Web3. In addition, Sohrab advises clients on cyber security and data protection.

Prior to joining Dottir, Sohrab worked as a trainee in some of the major Finnish law firms, as well as in The Finnish Consumer Disputes Board.

Samuel Kääriäinen,Partner, Helsinki

Samuel specializes in employment law and dispute resolution. In addition to representing employers in litigation and negotiations, Samuel’s daily work consists of advising employers on all types of personnel issues, such as matters relating to recruiting, terms of employment and benefits, employee data privacy, company restructurings as well as terminations of employment for both individual and collective reasons.

Samuel has been ranked in the field of employment law by Chambers and Partners, Legal 500 and Who’s Who Legal.

Taija Laukkarinen-Muurman,Finance Manager, Helsinki

Taija manages Dottir’s finance matters as well as compliance procedures, such as risk assessments, management of insider lists and KYC processes.

Prior to joining Dottir, Taija has worked in a major Finnish law firm as well as in a large northern European corporate bank. Taija holds a Bachelor of Business Administration degree from Haaga-Helia University of Applied Sciences.

Jaakko Lindgren,Partner, Helsinki

Jaakko assists clients in technology law acting for both technology users and suppliers in the private and public sector. He regularly advises domestic and international companies on a broad range of technology law matters. He has had a leading advisory role in multiple technology-driven M&A transactions and in venture capital investments in technology companies.

Jaakko is the former Chairman of the Finnish IT Law Association and a frequently requested chairman and speaker at various technology law seminars. He has been ranked by Chambers and Partners in the field of TMT in 2022 and 2023 and in the field of FinTech in 2023 and 2024.

Otto Lindholm,Counsel, Helsinki

Otto is an accomplished attorney with over a decade of experience, specializing in both advisory and contentious legal matters. He regularly advises businesses on large-scale outsourcing and transformation projects, as well as on many forms of technology adoption, such as those related to software licensing, SaaS, and data processing. He also advises on issues related to compliance, particularly in the technology sector and technology deployment.

Otto has represented clients in courts (including the European Court of Justice), as well as in arbitrations and regulatory enforcement procedures. Otto's contentious work has in particular focused on matters arising out of commercial contract and licensing disputes as well as data protection and cybersecurity enforcement procedures.

Otto has a holistic view of clients' legal issues, having worked as both outside legal counsel and in-house counsel. As in-house counsel, Otto worked in the industrial IoT and ad tech spaces.

Anni Murto-Koivisto,Senior Associate, Helsinki

Anni is a dispute resolution specialist with a particular focus on corporate law, post-M&A, and IP-related disputes. Anni also advises our clients on general corporate and business law matters, for example board advisory and commercial contracts.​

Anni is an attorney and a member of the Finnish Bar Association. She is trained on the bench, and also acts as a mediator in commercial mediation proceedings.​

Pyry Niikkonen,Associate, Helsinki

Pyry advises clients on intellectual property law related matters, with particular focus on copyright, brand protection and IP contracts. In addition, Pyry works on matters related to information technology and has special knowledge in Web3, crypto, blockchain and other emerging technologies.

Prior to joining Dottir, Pyry worked as a trainee in some of the major Finnish law firms, as well as in Finnish Composers' Copyright Society Teosto.

Juha Nurminen,Partner, Helsinki

Juha is known for his client-centric and business-minded approach to transactions and dynamic deal making capacity. In addition to his extensive M&A and growth financing experience he also has experience in capital markets transactions, especially of IPOs and public tender offers.

Juha has been ranked as a Rising Star in Capital Markets and M&A in Finland by IFLR1000 Financial and Corporate since 2018. Before joining Dottir in 2019, Juha worked as an M&A partner in a major Finnish law firm. In addition to his LL.M. degree, Juha is also a M.Sc. in Finance.

Noora Ollitervo,Associate, Helsinki

Noora advises clients on various assignments related to employment law and dispute resolution. In addition, Noora has a special interest in sustainability and legal matters related to the media and entertainment industry.

Prior to joining Dottir, Noora has worked as a trainee in a leading independent Finnish film and television production company as well as in a major international conservation organisation.

Leo Pajunen,Associate, Helsinki

Leo advises clients on a variety of banking and finance transactions, serving both domestic and international borrowers and lenders. Leo’s expertise covers corporate lending, project financing, real estate financing transactions and bonds. In addition, Leo advises clients on various corporate matters.

Prior to joining Dottir, Leo worked as a trainee in some of the major Finnish law firms, as well as in the Finnish Patent and Registration Office.

Jukka Pello,Partner, Helsinki

Jukka is a versatile technology and corporate lawyer with a particular focus on IT and media sectors. He assists fast-growing tech companies in their contractual arrangements as well as large corporations and public entities in IT outsourcing and procurement.

Jukka’s transactional work focuses on equity financing of growth companies. He advises domestic and international VC funds as well as target companies in technology-driven financing rounds. He also regularly advises in corporate governance, M&A and First North IPOs.

In addition, Jukka’s practice covers dispute resolution across the fields of his expertise.

Antti Rajamäki,Counsel, Helsinki

Antti specializes in employment law and advises clients on all employment law related matters, including dispute resolution and litigation. In addition to day-to-day employment advise, Antti advises clients among other in transaction related employment matters, company restructurings and co-operation proceedings, terminations of employment, occupational safety matters, collective bargaining agreements related questions and employment and director agreements.

Antti is also a frequent lecturer on various employment related topics. Antti has been ranked in the field of employment law by both Chambers and Partners and Legal 500.

Johanna Rantanen,Managing Partner, Helsinki

Johanna is the Managing Partner of Dottir. She has over 10 years of experience in assisting companies of all sizes in various technology and IP related legal matters, ranging from commercial contracts and regulatory advice to transactions and corporate law questions. Johanna's practice is focused on contract law and intellectual property as well as media and data protection law, covering for example technology procurement and supply and IP acquisitions and licensing arrangements.

Johanna is ranked by IP Stars as Transactions star 2022. Johanna was also nominated in 2022 in the Financial Times' Most Innovative Lawyers Awards as Innovative Leader.

Juha Rönkä,Counsel, Helsinki

Juha is a business-minded lawyer with extensive experience on clients’ employment law related day-to-day needs. Besides legal and HR-related knowledge, Juha has gained valuable insights from board memberships and other positions of trust.

Prior to joining Dottir, Juha has worked in several in-house roles at VR Group Ltd., including Head of HR Legal and HR Manager for two of the Group's business divisions. Besides his in-house experience, Juha has also worked for employer unions as a specialist.

Tanja Sallinen,Event & Project Coordinator, Helsinki

Tanja organises and coordinates all Dottir's internal and external events. Tanja also assists Dottir's employees in administrative and other support tasks.

Tanja holds a Bachelor of Business Administration degree from Metropolia University of Applied Sciences.

Kyösti Siltala,Partner, Helsinki

Kyösti advises clients on corporate law, M&A, intellectual property rights and commercial agreements.

Kyösti has over 24 years of experience in working as an in-house counsel for both public and private equity global corporations, including Valmet, MacGregor, Uponor and Dynea. Kyösti has negotiated and executed more than 100 M&A transactions, on all 6 continents. Kyösti was the Chairman of the Finnish Industrial Lawyers' Association from 2006 to 2010.

Daniel Stranius,Partner, Helsinki

Daniel advises clients on a broad range of IT & technology law matters, such as IT outsourcing, procurement and delivery of business-critical IT systems and services and gives advise relating to commercial contracts and their negotiations.

Daniel is an experienced commercial technology lawyer with almost 15 years of experience working in the technology sector as an in-house counsel and as an attorney. Daniel is a member of the board of the Finnish IT Law Association and is ranked as a Recommended Lawyer in Finland in the field of Information Technology by Who's Who Legal.

Daniel is the exclusive winner of the Lexology Client Choice Award 2021 in the IT & Internet category in Finland.

Anne Syrjä-Lounakoski,Marketing & Project Coordinator, Helsinki

Anne coordinates Dottir’s marketing activities. Anne works with content creation for Dottir's website and social media channels and ensures that Dottir's marketing processes run smoothly. Anne also assists Dottir's lawyers with sales materials and other support tasks.

Anne holds a Bachelor of Business Administration degree from Haaga-Helia University of Applied Sciences.

Tuuli Timonen,Partner (appointed), Helsinki

Tuuli heads Dottir's dispute resolution practice. She holds over a decade of experience in resolving complex international disputes arising out of a variety of industries, such as technology, energy, construction and post M&A.

She is also experienced in contract negotiations and contract drafting. Before joining Dottir, Tuuli worked in the global patent licensing team of Nokia, where she focused in particular on matters prone to disputes. She has also spent a decade in the international arbitration department of the global law firm White & Case, in Paris, New York and Helsinki.

Tuuli has experience in arbitral proceedings conducted under a variety of arbitration rules, such as the ICC Rules, the SCC Rules, the ICSID Rules, and ad hoc arbitrations, as well as in mediations and other ADR proceedings. She sits on the board of the Arbitration Institute of the Finland Chamber of Commerce and she was a member of the ICC’s task force on ADR. Tuuli has also sat as arbitrator in commercial arbitrations.

Tuuli has authored several publications on the topics of dispute resolution and governing law and she is a regular speaker on these topics. Before moving inhouse in 2019, Tuuli was systematically ranked as a future leader in arbitration by Who’s Who Legal (2017, 2018, and 2019).

Diana Truong,People & Culture Coordinator, Helsinki

Diana is on a student leave unti 15 April 2024.


Diana is a coordinator in Dottir's People & Culture team. Prior to joining Dottir, Diana worked as a trainee in a major Finnish law firm as well as in the Finnish Patent and Registration Office.

Diana holds a Bachelor of Business Administration degree from Laurea University of Applied Sciences.

Mark Turunen,Senior Associate, Helsinki

Mark advises on a wide variety of transactions and corporate law matters with a focus on domestic and cross-border M&A as well as private equity and venture capital investments.

Before joining Dottir in 2019, Mark was an M&A associate at another international law firm in Helsinki.

Sami Töyräs,Associate, Helsinki

Sami advises clients on M&A, dispute resolution and corporate matters.

Before joining Dottir, Sami worked in a major Finnish law firm.

Annukka Valén,Senior Associate, Helsinki

Annukka specialises in dispute resolution, particularly within technology, media and corporate law sectors. Annukka has acted as counsel in a wide range of commercial disputes before the public courts as well as domestic and international arbitral tribunals. Annukka’s practice covers white collar crime proceedings, and she frequently advises both corporations and individuals on regulatory and criminal matters.

Annukka is an attorney and a member of the Finnish Bar Association. She is trained on the bench.​

Janne Valo,Senior Associate, Helsinki

Janne advises clients on data protection and ICT contracts as well as regulatory matters on information technology and cyber security.

Prior to joining Dottir, Janne worked as a data protection consultant. In addition to a law degree from the University of Helsinki, he holds a M.Sc. in Economics and Business Administration from Aalto University.

Maria Velasquez,Senior Associate, Helsinki

Maria specialises in international arbitration with a particular emphasis on technology, energy, and construction disputes. Maria’s previous experience includes a variety of national and international arbitration proceedings (both commercial and investment treaty arbitrations) as well as civil and criminal proceedings before the public courts. ​

In addition to her Finnish LLM, Maria also holds LLB and LLM degrees from England. Maria is an attorney and a member of the Finnish Bar Association.

Sebastian Vuoritsalo,Associate, Helsinki

Sebastian advises clients on various kinds of transactions with particular focus on private equity and venture capital investments. Sebastian also assists clients in banking and financing transactions as well as fund formation and investment management matters.

Prior to joining Dottir, Sebastian worked in the private equity and venture capital practice of a major Finnish law firm.

Iikka Väänänen,Partner (appointed), Helsinki

Iikka boasts a decade of expertise in energy and environmental law, with a focus on advising clients in industrial projects, particularly in energy production and distribution. His work covers regulatory matters, permitting, contractual and transactional matters with environmental focus, administrative proceedings, litigation, and day-to-day legal issues. Clients praise his nuanced understanding of the energy market.

Iikka has been ranked as a Rising Star by Legal Media Group and IFLR 1000 Expert Guides in the fields of his expertise in 2020, 2021 and 2022. Before joining Dottir Iikka has worked in a major Finnish law firm. In addition to his Finnish law degree, Iikka holds an LL.M. degree specialised in Energy and Natural Resources Law from Queen Mary University of London.

Sofia Wang,Associate, Helsinki

Sofia advises clients on all intellectual property law related matters, including brand protection and copyright matters as well as IP contracts and IP-related disputes. She has previously worked at various other major Finnish and international law firms with a focus on IP law. Sofia advises clients in Finnish, Chinese and English.

Maria Wesander,Counsel, Helsinki

Maria advises clients mainly on a broad range of commercial contractual matters, information technology, compliance, employment law and dispute resolution. Maria has extensive knowledge and experience about market abuse and anti-money laundering legislation and practices.

Prior to joining Dottir, Maria has worked as a compliance officer at Danske Bank as well as in the M&A and banking & finance practices of a major Finnish law firm. Maria has also worked as a secondee at listed construction company SRV Oyj.

Gunnar Westerlund,Senior Counsel, Helsinki

Gunnar holds over 25 years of experience in handling complex domestic and international transactions. His merits include having been instrumental in the establishment of the international finance law market in Finland and building and leading one of the biggest banking and finance law teams in the country. As of February 2024, Gunnar is part of Dottir’s spot-on business-minded banking and finance team, advising and assisting clients in various financing assignments, restructuring cases, and structuring issues.

Tobias Salomon,Partner, Berlin

Tobias manages the Berlin Office and his core areas of practice are commercial and corporate law as well as M&A. He frequently consults startups, business angels and investors and a particular focus of his is on Finnish-German and German-US legal relations.

Tobias is the Chairman of the Finnish-German Trade Guild in Berlin.

Pietari Gröhn,Partner, San Francisco

Pietari is a corporate attorney qualified to practice law in California, USA. He represents startup and expansion stage companies, as well as investors and acquirers, in corporate matters from formation, to venture financings, commercial agreements, international expansion and exits.

Katariina Salomaa,Paralegal, San Francisco

Katariina is a Finnish lawyer working as a paralegal in Dottir's San Francisco office. Before moving to the USA, Katariina worked as a lawyer at the Appeal Board for the Government of Finland. In San Francisco, Katariina has been volunteering for several organizations, e.g. as a legal professional volunteer at University of California, Hastings College of the Law.

Edgar Tirado,Partner, San Francisco

Edgar is a corporate attorney qualified to practice law in California, USA. He represents public and private companies in corporate and commercial matters ranging from M&A representation of acquirers and sellers in technology, entertainment and medical sectors to venture and debt financings, as well as commercial, joint venture and IP agreements.