Jussi Nieminen

Partner, Member of the Finnish Bar

I am the head of our Competition & Procurement service and co-head of our Compliance & Investigations service. I specialise in competition law, state aid and public procurement matters.

I advise clients in all matters related to Finnish and EU competition law and have wide expertise and long experience in complex merger control proceedings, investigations and litigation cases concerning competition infringements, competition law analysis and strategic compliance advice. I have advised clients in many significant domestic and international matters related to merger control or competition law across a wide range of industries.

I also advice in various matters related to FDI proceedings and commercial contracts.

I approach legal matters in a comprehensive but pragmatic and solution-oriented manner.

I have been ranked by the international publications Chambers Europe and The Legal 500 among Finland’s leading competition law experts. In addition, Who’s Who Legal has listed me as a Future Leader in Competition matters.

Latest references

We are acting as the joint legal advisor to Oomi Oy and Lumme Energia Oy in a transaction whereby Lumme Energia will merge with Oomi. As from the completion of the merger, the combined entity will be the largest electricity retail and service company in the Finnish market. In 2024, Oomi reported a turnover of EUR 373.9 million and had approximately 110 employees. Lumme Energia’s turnover for the same year was approximately EUR 314.6 million and it had approximately 50 employees. The transaction is primarily driven by the recent developments in the electricity market and the strategic goal to develop competitive products and services. Another key objective is to further enhance the customer experience, which is a shared value between the two companies. As a result of the merger, Lumme Energia’s customers will transfer to Oomi, and Lumme Energia will become one of Oomi’s shareholders. The completion of the transaction is subject to an approval by the Finnish Competition and Consumer Authority.
Case published 29.8.2025
We advised Lantmännen ek för in its contemplated acquisition of Leipurin from Aspo Plc. Lantmännen is an agricultural cooperative and Northern Europe’s leader in agriculture, machinery, bioenergy and food products. Lantmännen is owned by 17,000 Swedish farmers and has 12,000 employees in over 20 countries. Leipurin is a leading Nordic supplier of bakery ingredients, equipment, and expert services to professional bakeries, confectioneries, and food manufacturers. The company operates across Finland, Sweden, and the Baltic countries with subsidiaries located in the aforementioned countries, providing comprehensive solutions to the baking industry. The closing of the transaction remains subject to regulatory approvals.
Case published 25.8.2025
We are acting as the legal advisor to WithSecure Corporation in Diana BidCo Oy’s voluntary public cash tender offer for all the issued and outstanding shares in WithSecure. The tender offer values WithSecure’s total equity at approximately EUR 299 million. Diana BidCo is a private limited company incorporated and existing under the laws of Finland that will be indirectly owned by a consortium formed for purposes of the tender offer by certain affiliated funds of CVC Capital Partners Plc and Risto Siilasmaa. The consortium believes that the partnership strengthens and accelerates the road to WithSecure’s long-standing goal of becoming Europe’s most trusted cybersecurity partner by positioning the company to lead the next era of business cybersecurity. WithSecure’s shares are listed on the official list of Nasdaq Helsinki. WithSecure is a Europe-based cybersecurity company that helps protect businesses and is committed to strong partnerships with customers and collaborators. WithSecure’s customers trust WithSecure with outcome-based cybersecurity that protects and enables their operations. The completion of the tender offer is subject to the satisfaction or waiver by the offeror of certain customary conditions on or prior to the offeror’s announcement of the final results of the tender offer. The tender offer is currently expected to be completed during the fourth quarter of 2025. The Takeover Board of the Securities Markets Association issued on 4 August 2025 a new recommendation (1/2025) on good securities market practice that deals with the target company’s board of directors’ obligations in case of a consortium offer in which a major shareholder of the company participates in the consortium.
Case published 8.8.2025
We acted as Finnish legal adviser to KKR in connection with its acquisition of the entire share capital of Karo Healthcare from EQT. The transaction follows Karo’s significant strategic transformation from a Nordic specialty pharma business into a leading pan-European consumer healthcare platform, with an attractive product portfolio spanning core categories such as Skin Health, Foot Health, and Intimate Health, as well as Digestive Health and Vitamins, Minerals & Supplements. KKR & Co. Inc. (NYSE: KKR), is a leading global investment firm that offers alternative asset management as well as capital markets and insurance solutions. KKR sponsors investment funds that invest in private equity, credit and real assets and has strategic partners that manage hedge funds.  Completion of the transaction is subject to customary conditions and regulatory approvals. The transaction is expected to close in the coming months.
Case published 17.4.2025
We advised Gasum in a Joint Venture project concerning the construction and chartering of a new LNG and bio-LNG bunker vessel. The vessel called Celsius will serve Gasum’s customers starting 2027. The investment is part of Gasum’s strategy to secure the availability of LNG and bio-LNG to its customers in the Northwestern European area as demand increases in the coming years. The vessel is owned by a joint venture between Gasum and the Swedish shipping company Sirius Shipping. The vessel is being built by RMK Marine in Istanbul, Turkey. Gasum is a Nordic gas sector and energy market expert. Gasum offers cleaner energy and energy market expert services for industry and for combined heat and power production as well as cleaner fuel solutions for road and maritime transport. The company helps its customers to reduce their own carbon footprint as well as that of their customers. Sirius is a Swedish shipping company founded by the Backman family. Sirius operates 11 product/chemical tankers and 2 LNG tankers and has a further 3 product/chemical tankers under commercial management.
Case published 11.3.2025
We advised Omya as a local counsel in its acquisition of Distrupol, a thermoplastics distributor and subsidiary of GPD Companies, Inc. (GPD). The acquisition is subject to regulatory approvals. Omya is a leading global producer of industrial minerals – mainly fillers and pigments derived from calcium carbonate and dolomite – and a worldwide distributor of specialty chemicals. Omya has 9,000 people employed across more than 50 countries. Distrupol is a European leader in the sales, marketing, distribution and application development of an extensive range of thermoplastic polymers and elastomers.
Case published 8.1.2025
We are acting as a counsel to Fortum in a transaction in which Fortum is strengthening its renewable power project pipeline through the acquisition of a project development portfolio from Enersense. The debt-and-cash free purchase price is approximately EUR 9 million, with the potential for project-specific earn-outs subject to projects successfully reaching a final investment decision in the future. The transaction is subject to customary closing conditions and is expected to be completed during the first quarter of 2025. Fortum is a leading Nordic energy company with the purpose to power a world where people, businesses and nature thrive together. Fortum’s core operations comprise of efficient, CO2-free power generation as well as reliable supply of electricity and district heat to private and business customers. The company is listed on Nasdaq Helsinki. One of Fortum’s strategic targets is to develop at least 800 MW of ready-to-build onshore wind and solar projects by the end of 2026.
Case published 19.12.2024
We advised Helkama-Autokauppa Oy in the acquisition of the Škoda dealerships in Helsinki and Tampere from Hedin Automotive Finland. Helkama-Autokauppa Oy operates as an independent dealer in the dealer network of Helkama-Auto Oy, the Finnish importer of Škoda cars, spare parts and accessories.
Case published 3.12.2024