Procopé & Hornborg > Helsinki, Finland > Firm Profile

Procopé & Hornborg
PO BOX 1077

Finland > Maritime and transport Tier 1

Procopé & Hornborg has ‘broad knowledge’ in the transport and logistics sectors, including handling cargo claims, vessel damage and collision issues, and negotiating purchase agreements. It also deals with disputes relating to equipment for shipping vessels and has been involved in complex insurance issues and project financing work. Practice head Ulla von Weissenberg ‘has exceptional industry knowledge‘, ranging from shipbuilding and docking issues to purchasing agreements, while Turo Sumu covers regulatory compliance work and transport litigation.

Practice head(s):

Ulla von Weissenberg

Other key lawyers:


The team has broad knowledge in their area of expertise and can very well also apply previous experience to current tasks and cases at hand.’

Ulla von Weissenberg has exceptional industry knowledge and experience and has very deservedly been ranked many times as one of Finland’s top maritime lawyers. She is down to earth and very perceptive to the client’s needs.’

The firm is very reactive and pragmatic with a high degree of legal expertise in maritime matters.’

Ulla von Weissenberg immediately understands the legal issues and practical consequences, and provides great support to build the strategy of international complex disputes. Turo Sumu is a talented lawyer, efficient, clear and friendly with a strong legal background. His approach to cases is made with intelligence, from both a legal and practical point of view.’

Ulla von Weissenberg has excellent knowledge of maritime law, good networks in Northern Europe to other maritime lawyers and she is exceptionally pleasant to work with.’

I have instructed Ulla von Weissenberg on two recent cases, and have been impressed at the speed of the advice, the clarity of the advice, the value for money and her excellent written and spoken English.’

Key clients

Manga LNG Oy

Pohjola Insurance Ltd

Finland > EU and competition Tier 3

Procopé & Hornborg covers both national and EU merger control issues, abuse of dominance claims, cartel investigations, antitrust audits and damages disputes. It is also experienced in handling enforcement issues for EU clients, as well as acting for key players in the Finnish energy sector. Practice co-head Lotta Uusitalo focuses on EU and competition law, while co-head Asta Siponen specialises in damages claims, public procurement issues and state aid work.

Practice head(s):

Lotta Uusitalo; Asta Siponen


‘Good advice and quality work with short response times.’

Finland > Commercial, corporate and M&A Tier 4

Procopé & Hornborg is experienced in domestic and cross-border M&A transactions, venture capital work and joint ventures, acting for clients active in the energy, technology and engineering sectors; It also advises on liability issues, corporate governance work and due diligence. Practice head Petri Kyllönen  leads on major M&A projects, while Ismo Hentula leads the corporate advisory team. Managing partner Pia Tanskanen  also contributes.

Practice head(s):

Petri Kyllönen; Ismo Hentula; Pia Tanskanen

Other key lawyers:

Helena Wist; Sampsa Perttunen


‘Very responsive and technically strong.’

‘Ismo Hentula always makes himself available and is a very trusted business adviser.’

‘Competent and has good team members.’

‘Extremely friendly, easy to approach and reach out. Fast responses even outside office hours. Seem to care about the cases and clients. Personal involvement.’

‘Petri Kyllönen & Pia Tanskanen are both incredibly hard-working and very involved in the details of a transaction. They are very experienced, and they know all the ways that a transaction can develop. On a personal level they are really easy to work with, very enjoyable and very committed to the individual case.’

‘Petri Kyllönen has extensive deal execution experience and early on in the process he is able to identify the most relevant key issues for the client and focus on delivering the best overall solution. Partner Pia Tanskanen is able to organise and run a smooth legal process to support the deal in the best possible way.’

Key clients

Ensto Group

EPV Energy Ltd

Etteplan Oyj

Firstbeat Technologies Ltd

Haltija Group Oy

Indutrade Oy

Pohjolan Voima Oyj

Viafin Service Oyj

LikeIT Solutions Oy

Nepton Group Oy

Work highlights

  • Advised Ensto Group on the divestment of the Ensto Building Systems business to Legrand S.A.
  • Advised Etteplan on its acquisition of the Polish software company and a related directed share issuance.
  • Advised HR SaaS providers Nepton and LikeIT on their consolidation into LikeIT Nepton Group and a private equity investment.

Finland > Dispute resolution Tier 4

The dispute resolution team at Procopé & Hornborg covers both litigation and arbitration matters for Finnish municipalities and European clients active in the construction and pharmaceuticals sectors. Asta Siponen is an experienced litigator and specialises in complex contract disputes, while Ulla von Weissenberg focuses on disputes and sanctions in the shipping, transport, aviation and international trade arenas.

Practice head(s):

Asta Siponen; Ulla von Weissenberg


‘Always very good and competent advice taking into account customer’s needs and business, even with short notice for the assignment from the customer.’

‘Asta Siponen is very competent and experienced professional with a customer focused mindset.’

Procopé & Hornborg Attorneys Ltd is a business law firm with decades of experience in delivering legal services. We seek long-standing, partnering relationships with clients. We deepen and develop our knowledge of the industry with a view to providing the best solutions to our clients’ legal needs.

Corporate Advisory, Energy Ismo 40 8338 002
M&A Petri Kyllö 40 0757 732
Dispute Resolution Asta 50 0407 446
Data Protection & Technology Anna 40 7292 979
Competition & Procurement Lotta 40 8338 008
Finance Jouko 40 8441 613
Private Wealth Harriet 50 5544 565
M&A Pia 50 3143 143
Employment Tomi 40 0494 495
Shipping & Logistics Ulla von 40 8205 732
Insurance Turo 40 5089 008
Katariina Aarnio photoMs Katariina AarnioCounsel and Attorney at Law Katariina Aarnio specializes in family law and…
Kira Ebeling photoMs Kira EbelingCounsel Kira Ebeling specialises in family law and inheritance law. She also…
Tomi Haapman photoMr Tomi HaapmanCounsel Tomi Haapman is specialised in employment law, employee benefits and collective…
Sonja Heinonen photoMs Sonja HeinonenAssociate Sonja Heinonen specializes in data protection and corporate advisory. She advises…
Ismo Hentula photoMr Ismo HentulaPartner Ismo Hentula specialises in corporate law, contract law, M&A and private…
Iida Kangaspeska photoMs Iida KangaspeskaAssociate Iida Kangaspeska specialises in mergers and acquisitions.
Lauri Koskenniemi photoMr Lauri KoskenniemiAssociate Lauri Koskenniemi specialises in mergers and acquisitions.
Petri Kyllönen photoMr Petri KyllönenPartner Petri Kyllönen is specialised in mergers & acquisitions, private equity, contract…
Saga Lamminsivu photoMs Saga LamminsivuAssociate Saga Lamminsivu advises clients in the areas of corporate advisory and…
Anna Liinamaa photoMs Anna LiinamaaCounsel Anna Liinamaa specialises in data protection and privacy law. Her main…
Jouko Markkanen photoMr Jouko MarkkanenCounsel Jouko Markkanen practices primarily in the areas of banking and finance…
Joel Nurmi photoMr Joel NurmiAssociate Joel Nurmi specializes in dispute resolution, as well as in general…
Katariina Rontu photoMs Katariina RontuAssociate Katariina Rontu specialises in EU & Competition law.
Harriet Rydberg photoMs Harriet RydbergPartner Harriet Rydberg specialises in family law, inheritance law and tax law,…
Leea Salminen photoMs Leea SalminenCounsel Leea Salminen specialises  in corporate, environment and antitrust matters. She has…
Asta Siponen photoMs Asta SiponenPartner Asta Siponen is spesialized in contract law, real estate and contruction matters, environmental…
Turo Sumu photoMr Turo SumuCounsel Turo Sumu advises on transport law, insurance and international trade related…
Pia Tanskanen photoMs Pia TanskanenPartner and CEO Pia Tanskanen is specialised in in mergers & acquisitions,…
Lotta Uusitalo photoMs Lotta UusitaloPartner Lotta Uusitalo specializes in competition law and assists clients in preparing…
Ulla von Weissenberg photoMs Ulla von WeissenbergPartner Ulla on Weissenberg is the head of Procopé & Hornborg’s Shipping…
Number of lawyers : 18
Lawyers Associated Worldwide

Procopé & Hornborg provides a work community where people have opportunities to learn, thrive and achieve their full potential regardless of their age, race, gender, religion, or sexual orientation.

The firm has long traditions of equality between women and men and has more women in the office than average in the industry, and the firm pays equal salary to those in the same position regardless of gender.

The age distribution of the staff is extremely wide, and we have experts from different age groups. In addition, the firm puts a lot of value on developing young professionals. Our staff speaks several native languages, and it is considered a valuable feature for the whole firm.

We are committed to provide a diverse and equal workplace for our employees regardless of their background. We genuinely believe that diversity is a strength that we should cherish and value.