Marius Matonis

Partner, Member of the Baltic Board, Attorney at Law

Phone
+370 698 33 055
Email
marius.matonis@tegos.legal
Country
Lithuania
Languages
Lithuanian, English, Russian

About

Marius Matonis is a Partner, Attorney at Law, and one of the most experienced and respected lawyers in the field of mergers and acquisitions in the Baltic region.

With over 20 years of professional experience, he has built a strong reputation as a trusted adviser in high-value and complex transactions.

Marius has led the Baltic M&A team at TEGOS in the majority of the firm’s most significant deals.

His expertise spans a wide range of areas, including private equity, privatisation, corporate restructuring and insolvency, public-private partnerships, and general corporate advisory.

Clients value his strategic insight, precision, and leadership in navigating the most challenging corporate matters.

All of the most influential international legal directories – The Legal 500, Chambers Europe, Chambers Global, IFLR1000, and Best Lawyers International – consistently rank Marius among the leading experts in M&A and commercial law.

Practice areas

Industries

International desks

Ukraine Advice

Testimonial

"He is broad-minded, insightful and a good decision-maker."

Corporate/Commercial / Chambers & Partners

"Marius might be the best M&A and corporate lawyer in Lithuania."

Corporate/Commercial / Chambers & Partners

"He is an exceptionally business-minded lawyer."

Corporate/Commercial / Chambers & Partners

CV

Professional career

Since 2023

Partner, Member of the Baltic Board, law firm TEGOS

2018 – 2023

Executive Partner, law firm TGS Baltic

2010 – 2017

Partner, Head of Lithuanian M&A practice group, law firm Tark Grunte Sutkiene

2006 – 2010

Partner, law firm Sutkienė, Pilkauskas ir partneriai

2003 – 2006

Associate, law firm Sutkienė, Pilkauskas ir partneriai

1999 – 2003

Trainee, Vilnius office of the USA law firm McDermott, Will & Emery

Education

2002

Vilnius University, Faculty of Law, Master of Law

Memberships

Lithuanian Bar Association

Deals & cases

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News

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Publications

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Marius Matonis

Testimonial

CV

Deals & cases

Oxylabs has officially become Lithuania’s second most valuable unicorn

Top Sport Sells a 70% Controlling Stake to Fortuna Entertainment Group

Tesonet Global targets to increase its interest in Artea Bank

INVL Baltic Sea Growth Fund has completed the acquisition of the Pehart Group in Romania

Mediatech becomes a minority shareholder of 15min Group

INVL Baltic Sea Growth Fund signs agreement to acquire the Pehart Group in Romania

Carbyne Equity Partners has agreed to invest into UAB Biomapas

GATAS UAB sold its shares to Saferoad Group

TGS Baltic advised Nord Security, Lithuanian cyber security tech unicorn, on attracting $100 million investment

BaltCap completes the first take-private transaction by a Baltic investor on the London Stock Exchange by acquiring Xpediator

PPMI joins Kantar Public!

TGS Baltic advised Livonia Partners on investment in the fast-growing sustainability innovator Bagfactory

TGS Baltic advised investment funds managed by BaltCap, the largest private equity firm in the Baltic States

Biggest deal in Baltics: TGS Baltic advised the buyer in the acquisition EECP Retail Properties II and III

TGS Baltic advised the seller in the transaction to sell the shares of KickerTech to Betsson, one of the largest companies within the European iGaming industry

TGS Baltic advised the shareholders of Kilo Health in the sale of minor part of company shares to Scandinavian and Estonian funds

TGS Baltic advised founders of the space company NanoAvionics in the sale of a controlling stake to Norwegian company Kongsberg Defense & Aerospace

Snoras bank’s insolvency administrator has signed a 105-million-euro settlement agreement with the Swiss bank Julius Baer

TGS Baltic team advised Tesonet in closing investment to Žalgiris group

TGS Baltic advised Nord Security on becoming the second Lithuanian unicorn

TGS Baltic advised on the largest healthcare clinic merger in Lithuania

TGS Baltic has acted as the leading legal advisor for Euroapotheca in EUR 700 M transaction

TGS Baltic advised BaltCap on the sale of BPT Real Estate, one of the largest property management companies in the Baltics, to Newsec

TGS Baltic advised Tesonet Accelerator on its investment in Yours App, an all-rounder wellness app for the modern world

TGS Baltic advised Naujoji Ringuva and Spodrība in joining forces and setting up a leader in the Baltic region

TGS Baltic advised Whatagraph, one of the leading marketing start-ups, attracting EUR 6,2 mln. investment

TGS Baltic advised Light Conversion on the sale of 25% of shares to 7-Industries

Advising on the establishment of Unicorns LT, an association representing Lithuania’s leading startups

TGS Baltic advised founders of Strive, a North America focused technology company, on the sale of Strive Platform shares worth EUR 5,4 million

TGS Baltic represented Hostinger and its shareholders in attracting an international investor which acquired more than 30 % of shares

TGS Baltic advised MCI on the sale of the shares of Pigu worth EUR 37 million

TGS Baltic advised INVL Baltic Sea Growth Fund on merging the medical clinics of the MediCa Group and InMedica

TGS Baltic advised Šiaulių bankas on the acquisition of the retail loan portfolio of EUR 125 million

TGS Baltic advised BaltCap on the acquisition of Lithuanian meat processing company Krekenavos agrofirma

TGS Baltic advised on the transfer of UAB KS Investicija shares and on signing the biggest office space deal in the Baltics with UAB Tesonet

TGS counselled UAB Skandia Operations Center

TGS Baltic advised Headex Group

TGS Baltic advised UAB XXT, controlled by UAB M.M.M. projektai

TGS Baltic advised UAB EUGESTA in acquiring a majority interest in UAB Armavista

TGS Baltic represented Lithuania SME Fund in the sale of InMedica shares

Advising Ermitažas in acquiring Bauhof

TGS Baltic advised Livonia Partners in the acquisition of UAB Freor LT’s stake

TGS Baltic represented UAB Ecoservice in acquiring a controlling interest in UAB Marijampolės švara

TGS Baltic represented KS Investicija in acquisition of Vilijos parkas

TGS Baltic has been a strategic legal advisor to Euroapotheca in purchasing Apoteksgruppen

TGS Baltic advised the Ministry of Economics on acquisition of 16,05% of the shares of AS Conexus Baltic Grid from SIA ITERA Latvija

TGS Baltic advised the Ministry of Economics on the acquisition of 18.31% of the shares of AS Conexus Baltic Grid from Uniper Ruhrgas International GmbH

TGS Baltic ranks high in IFLR1000

TGS Baltic represented Fonterra in acquiring 10% of Rokiškio sūris shares

TGS Baltic represented Litcapital I in sale of shares in Brolis Semiconductors

TGS Baltic represented Lietuvos energija in sale of Duomenų logistikos centras

TGS Baltic represented Lietuvos energija in structuring an innovation fund

TGS Baltic represented Baltcap Infrastructure Fund in a EUR 16 million biomass plant development deal

TGS Baltic represented Baltcap Infrastructure Fund

TGS Baltic advised “Enterprise Investors” in sale of “Novaturas”

TGS Baltic advised Elemental Holding in acquisition of EMP recycling

TGS Baltic is the legal advisor to the bankruptcy administrator of bank Snoras

TGS Baltic advised UAB Lošimų strateginė grupė on the sale of the company

TGS Baltic advised Swedbank on its acquisition of Danske Bank’s personal banking business

TGS Baltic has advised the shareholders of Neptuno Vandenys on sale of 100% of shares to Coca Cola

Transaction of transfer of ERGO Life Insurance pension funds of the 2nd pillar successfully closed

TEGOS advised ERGO’s life insurance companies cross-border merger in the Baltics

TEGOS advised Enterprise Investors in sale of Novaturas

News

TEGOS celebrates recognition in Legal 500 EMEA 2026 guide

Baltic-Wide Recognition in Chambers Europe 2026 Guide

Baltic-Wide Recognition in Chambers Global 2026

TEGOS Achieves Outstanding Results in IFLR1000 Central & Eastern Europe Rankings

TEGOS Shortlisted for Legal500 CEE Awards 2025

TEGOS Earns 73 Rankings in The Legal 500 EMEA 2025 Guide

TEGOS Celebrates Top Rankings in Chambers Europe 2025

TEGOS Recognised Among the Region’s Leading Law Firms in Chambers Global 2025

TGS Baltic Joins Mergerfilers as Lithuania’s National Experts

IFLR1000 Recognises TGS Baltic as Tier 1 in Lithuania and Acknowledges 26 Experts in the Baltics

TGS Baltic is recognized as the Baltics Legal Adviser of the Year at the European M&A Awards 2023

TGS Baltic is honored to win CEE LM Deal of the Year Award!