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Who We Are

Founded in 2005 by entrepreneur Paul Bougnoux, and expert in business succession Tanguy Mantelin, Largillière Finance has established itself as one of the leading M&A advisory firm for growth companies.

Our approach is built on strong expertise and a deeply rooted entrepreneurial culture.

As an independent firm, we support executives of large groups, mid-cap and small companies, as well as their shareholders, in their divestments, acquisitions, financing, and financial strategy. With a presence in France and abraod, we develop tailored, collaborative solutions at every stage of your projects.

Our Mission: Building Your Future Together

More than a promise, it is a commitment – to stand by your side at the defining moments in your company’s journey and capital lifecycle. Ownership transitions, capital raising, external growth… these transactions all represent milestonesthat carry vision, responsibility, and the opportunityto shape a new future. In an increasingly complex environment where benchmarks are constantly shifting, we help you make informed decisions through a sharp understanding of market dynamics and opportunities.

Because every project and every entrepreneurial story is unique, we are committed to building a close, collaborative partnership with you, your shareholders, and your advisors. As an independent firm, we act solely in your best interest. We take the time to understand your ambitions, your priorities, and the values that drive you. This commitment to listening and transparency lays the foundation of trust, enabling us to mobilize the right levers, partners, and networks that truly make a difference.

Building your future together also reflects our vision of what our role should be. In transactions where rigor is a key success factor, our teams combine deep sector expertise with strong operational capabilities. From structuring to closing, we ensure the highest standards of analysis, disciplined process management at every stage, and privileged access to the most relevant counterparties; corporates, investment funds, family offices; in France and internationally. The strength of reliable, high-performance execution to secure your transactions and enhance the value you create.

+400

Advised transactions

+45

Professionals

+20

Years of existence

Our Services

Majority or minority stake sales, succession planning, or strategic partnerships

External growth transactions and build-up strategies, in France and internationally

Majority or minority transactions: LBOs, OBOs, MBOs, MBIs, financial engineering (valuation, etc.) and strategic advisory services (shareholder mediation, management incentive plans, etc.)

A “one-stop shop” offering covering all financing situations, with privileged access to the full spectrum of lenders and investors. Corporate financing, LBO refinancing, and subordinated debt solutions.

Our Sector Expertise

Insurance brokerage – Wealth management – Asset management

Software publishers – E-commerce – IT services

Marketing & Communication – Training – Certification

Aerospace & Defense – Transport & Logistics – Building & Construction

Laboratory services – Medical networks – Personal care services

Trading – Manufacturing – Wines & Spirits

Cosmetics – Retail & Distribution – Fashion

Sports – Hospitality – Leisure

A Team Recognized at the Top of Industry Rankings

A Team Recognized at the Top of Industry Rankings

  • Rankings

    2025

    Leading Player in Mergers and Acquisitions (between €30 million and €150 million) – Small-Cap LBOs

  • Rankings

    2025

    Excellent in TMT – Industrials – FIG – Consumer & Retail (C&R)

  • Rankings

    2025

    Highly regarded in Agribusiness & Wines – Fundraising Advisory

  • Awards

    2025

    Gold Trophy 2025

    Investment Banking: “Best Small to Mid Growth Dynamic”
  • Awards

    2025

    Special Mention 2025

    Investment Banking: “Best Small to Mid Team”
  • Awards

    2025

    Best Small to Mid Team

    Fusions & Acquisitions – Small to Mid-cap 2024

Our CSR Commitment

We believe that sustainable performance goes hand in hand with responsibility. In 2023, we established an Impact Committee to embed and drive our CSR strategy across the firm.

We place sustainability at the core of our model, with a dual CSR approach: supporting our clients in enhancing the ESG value of their transactions, while strengthening our individual and collective commitments internally.

ESG for Business: Our Expertise Driving the Success of Your Transactions

We integrate ESG criteria at every stage of the M&A advisory process to:

  • Enhance our clients’ ESG positioning by identifying their initiatives, non-financial KPIs, and key impact drivers.
  • Assess and structure ESG approach, highlightingboth existing and future actions, formalizing initiatives, and showcasing the sustainability vision behind their activities.
  • Identify the most relevant investors, funds, or corporates aligned with each client’s ESG strategy and trajectory. Leveraging our deep understanding of market players and their expectations, we pre-qualify eligibility criteria to lay the groundwork for strong, long-term partnerships.
  • Optimize transaction outcomes by broadening the opportunity set and maximizing valuation through robust ESG preparation.

A Shared and Measurable Responsibility Across Our Teams

Our CSR approach as a firm is built around three key pillars:

  • Reducing our environmental footprint: 
    • Daily waste recycling through a partnership with
    • Carbon footprint assessment conducted  with
    • Elimination of plastic bottles within our offices
    • CSR awareness workshops
  • Investing in our human capital: 
    • Promoting work-life balance, with a hybrid remote/on-site model
    • Strong commitment to diversity and gender balance in recruitment — signatory of the Diversity Charter
    • Ongoing training and development for employees and interns
    • A collaborative culture fostered through regular team-building initiatives