Quadrature is a Paris-based independent financial advisory boutique catering to corporate clients and private & professional investors.


Strategic corporate advisory - in particular in relation to new digital challenges
M&A transaction execution
Fund raising & strategic partnerships for young companies
Allocation and portfolio management strategies
France and Europe



Fundamental analysis of macro-economic
Sector-specific strategic issues and trends
Identifying M&A opportunities
Company and asset valuation
Project management
Market data analysis

Corporate advisory


Quadrature Corporate Advisory provides conflict-free independent advice on strategies and M&A opportunities.


Quadrature helps companies address a wide range of issues, including:
   - how to access new markets
   - digital strategy roll out
   - build-up and carve-out opportunities

Over time, we have build a strong expertise in certain sectors, including Telecom, FIG, Pharma, Media & Entertainment, IT and Infrastructure, with a strong European track record on behalf of european and US corporates.


Quadrature advises corporate and financial investors on buy- or sell-side execution of transactions.

Quadrature Investment Advisory


Quadrature is a registered investment adviser offering taylor-made advisory services to high-net worth individuals, institutional investors and family offices across Europe

Liquid Strategies

  • Strategic et quantitative advice on listed equities & bonds
  • Allocation strategy
  • Bespoke investment strategy tailored to each investors’ specific requirements & needs

Private Equity

  • Proprietary investment opportunities in European start-up companies, real estate and LBOs
  • Background & valuation analysis of investment opportunities
  • Investment structuring and execution

Quadrature Investment Advisors S.A.S.

Member of the CNCIF (Chambre Nationale des Conseillers en Investissements Financiers, 22 rue de Longchamp - 75116 Paris)
ORIAS registration number: 15001272

Our team

“ We started Quadrature in 2010 to combine corporate advisory, proprietary investments and asset management expertise under the same roof. ”
Nadine Renault
Yassir Khalid
Jean-Baptiste Toulouse
Georges Ralli
Etienne Gubert

Jean-Baptiste Toulouse | Founder & Chief Executive

Jean-Baptiste Toulouse

With over 25 years of experience in corporate finance across Europe and a strong recognition as one of France’s most seasoned M&A bankers, J-B has a strong background in technology, IT and media. Prior to setting up Q in 2010, J-B worked with Lehman Brothers in New York, Rothschild and UBS in Paris, before founding one of the first independent advisory boutiques in Paris in 2000.

+33 1 75 77 30 60

Georges Ralli | Vice-Chairman

Georges Ralli

As one of the most prominent European investment bankers in his generation, Georges has an outstanding track-record of successfully executed transactions in a number of industries and has held key management positions at Lazard Frères in France and in Europe. Since leaving Lazard in 2012, Georges has served as an independent director on the board of French blue chip companies while pursuing direct investment activities.

+33 1 75 77 30 60

Yassir Khalid | Managing Partner

Yassir Khalid

Yassir brings Quadrature his extensive expertise in corporate finance and fundraising in the telecom and digital sectors, with a 15-year experience in M&A / venture advisory and several venture capital investments. At Leonardo & Co until 2012, he was head of the Technology, Media and Telecom franchise for France and was in charge of the bank’s operations on the Moroccan market. Prior to joining Leonardo, Yassir was with Credit Suisse First Boston in London.

+33 1 75 77 30 60

Etienne Gubert | Vice-President

Etienne Gubert

Etienne has joined the team in 2013 and plays a key role in M&A transaction execution and other corporate advisory mandates. Previously with Rothschild & Cie and Leonardo & Co, Etienne has worked with clients from a wide array of industries, including TMT, FIG, Pharma & Entertainment.

+33 1 82 73 02 38

Nadine Renault | Executive Assistant

Nadine Renault

Executive Assistant to Jean-Baptiste Toulouse since 1994, Nadine has followed him in his various ventures. She is critical to Quadrature’s team spirit and efficiency.

+33 1 75 77 30 60

Contact us


20, rue Royale
75008 Paris

+33 1 75 77 30 60