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Act Legal

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Paris, France, home of IPG member Act Legal
act legal France (formerly Aston Avocats) is a Paris-based French law firm founded in 2012 by Olivier Sanviti. The firm has a strong reputation for advising growth companies, innovative businesses, investment funds, and the French subsidiaries of international groups, combining entrepreneurial thinking with commercially focused legal advice. Its practice covers a broad range of corporate, M&A, tax, technology, real estate, employment, and dispute resolution matters.
Act Legal
Expertise
Law
Mergers & Acquisitions
Tax
Act Legal
Specialisms
Acquisition Finance
Antitrust & Competition Law
Arbitration, Mediation & Dispute Resolution
Business & Corporate Tax
Carve-Outs & Demergers
Civil & Commercial Litigation
Commercial Contracts & Transactions
Construction & Infrastructure
Corporate & Company Law
Corporate Governance & Compliance
Corporate Insolvency & Restructuring
Corporate Joint Ventures
Cross-Border M&A
Data Protection, Privacy & Cybersecurity
Distressed M&A & Special Situations
Due Diligence
Employment & Labour Law
Energy & Natural Resources
Franchising, Agency & Distribution
Growth Capital & Minority Investments
Health & Life Sciences
Intellectual Property
International Trade & Investment
M&A – Private Companies
M&A, Transactions & Due Diligence
Management Buy-Ins & Buy-Outs
Mergers & Acquisitions
Private Equity & Venture Capital
Private Equity Transactions
Private International Law
Property & Real Estate Tax
Shareholder & Investment Agreements
Tax Advisory & Planning
Tax Appeals & Disputes
Tax Law
Tax Litigation
Technology, IT & Telecommunications
VAT & Indirect Tax
Venture Capital Transactions
White Collar Crime, Fraud & Criminal Law
Act Legal logo
Address
act legal (formerly Aston Avocats) 68 Avenue des Champs-Élysées
75008
Paris
France
+33 1 44 94 00 00
actlegal.com
Key Contact
Olivier Sanviti, Managing Partner at act legal France
Olivier Sanviti
Managing Partner

The firm was recognised for its expertise in private equity, mergers and acquisitions (M&A), venture capital, tax incentives, and digital business law, and regularly acted on domestic and cross-border transactions. As a member of the International Practice Group (IPG), the firm supports clients with international expansion and multi-jurisdictional legal matters.

In 2025, Aston Avocats became act legal France, joining the wider act legal European law firm, with offices in 20 other countries across Europe, while continuing its focus on advising businesses on strategic transactions, corporate growth, and international expansion. The firm's founder, Olivier Sanviti, continues as Managing Partner of act legal France.

Specialisms span French and international business law, with a strong emphasis on supporting growth companies, investors, entrepreneurs, and multinational businesses.

Key areas of expertise include:

  • Private Equity
    ‍
    Advising investors, funds, founders, and management teams on investment transactions, fundraising, leveraged buyouts (LBOs), venture capital, and private equity matters.
  • Mergers & Acquisitions (M&A)
    ‍
    Legal support for domestic and cross-border acquisitions, disposals, mergers, joint ventures, corporate restructurings, and due diligence.
  • Corporate & Commercial Law
    ‍
    Company formation, corporate governance, shareholder agreements, commercial contracts, and day-to-day legal advice for businesses.‍
  • Commercial Litigation & Business Disputes
    ‍
    Representation in commercial disputes, shareholder conflicts, contractual litigation, and other business-related contentious matters.‍
  • White Collar Crime & Investigations
    Defence of companies and their executives in criminal and regulatory investigations, including fraud, criminal tax matters, searches and seizures, and compliance risk prevention, together with representation before national and international financial supervisory authorities.‍
  • Real Estate Law
    ‍
    Advice on commercial real estate transactions, property development, leasing, and real estate investment matters.
  • Intellectual Property (IP)
    ‍
    Protection and commercialisation of intellectual property rights, including trademarks, copyrights, licensing, and IP strategy.‍
  • Information Technology (IT) & Digital Law
    ‍
    Legal advice for technology companies covering software, digital services, e-commerce, technology contracts, and innovation-driven businesses.‍
  • Media & Communications Law
    ‍
    Legal support for media, communications, and digital content businesses.‍
  • Data Protection & Privacy
    ‍
    GDPR compliance, personal data governance, cybersecurity-related legal issues, and data protection strategies.‍
  • Tax Law & Tax Incentives
    ‍
    Corporate tax advice, transaction tax planning, research and innovation tax incentives, and strategic tax structuring.‍
  • Employment & Social Law
    ‍
    Employment contracts, executive matters, workplace restructuring, employee relations, and social security issues.‍
  • Restructuring & Insolvency
    ‍
    Advising businesses facing financial distress, restructurings, insolvency proceedings, and business recovery.‍
  • Corporate Risk & Insurance
    ‍
    Advice on business risk management, insurance-related matters, and liability issues affecting companies.‍
  • International Business Advisory
    ‍
    Supporting overseas companies entering the French market and French businesses expanding internationally through cross-border legal advice and the firm's international network.

Before becoming act legal France in 2025, the firm had built a strong reputation advising innovative companies, scale-ups, private equity investors, and international businesses, particularly on transactions involving private equity, M&A, technology, digital business, and cross-border expansion.

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