About us

Vision & Mission

C4Diagnostics is developing in vitro diagnostics kits based on its proprietary technology, with the following specifications in mind:

Simple for the lab, fast and accurate for the patient and the medical community: actionable medical information for medical professionals.

C4Diagnostics aims at disrupting the global market of infectious diseases IVD by:

  • Delivering faster highly sensitive results
  • Addressing unmet medical needs

C4Diagnostics develops and commercializes IVD kits based on its proprietary, versatile, phenotypic and simple technology.


February 2021 : Clinical trial of C4 Covid19 Human, our salivary rapid test

End of April 2020 : Launch of C4Services, our solution for detecting COVID-19

April 2020 : Implementation and coordination of COMETE (Covid-19 Marseille Environnemental Testing)

December 2019 : Series A Fundraising € 2.3 Millions

September 2019 : C4Legio™ available

March 2019 : execution of key distribution agreements

January 2019 : ISO 13485 certification

Spring 2018 : Fundraising €1.5 Million

May 2017 : inception of C4Diagnostics

Our Commitments

ISO 13485 standards

C4Diagnostics commits to deliver accurate medical information with products designed and manufactured according to the highest standards.

Lloyd’s Registrer (Notified Body) ISO 13485:2016 certified C4Dx in January 2019


C4Diagnostics’ management team has significant and complementary experience in the development, implementation, and commercialization of infectious diseases in vitro diagnostics.

Heads of

Younes Lazrak

Younes Lazrak

Founder & CEO

Before cofounding C4Diagnostics, Younes worked in Business Development and IP management in several in vitro diagnostics companies (Incl. Ipsogen & Qiagen), with an impressive track record. His main responsibilities were Licensing in & out and the management of the industrial intellectual ownership, before progressively shifting to Business development and alliances management.

Thomas Tran, MBA

Thomas Tran, MBA

Managing Director / Vice President Marketing & Sales EMEA

With a scientific background supplemented by a Master’s degree in General Management International, Thomas has successfully held various key management roles in business development, sales and marketing within PME(s) and Top5 leading companies in IVD. Experienced commercial business leader in B2B and B2C sales, Thomas joined C4Diagnostics’s team in May 2020 with the responsibility of organizing and developing the marketing and global sales activity. He’s Managing Director since March 2021.

Damien Thomas

Damien Thomas

Head of R&D and Industrialization

After a PhD in microbiology and immunology, Damien has worked in different IVD private companies. For Ingen/Eurobio, Damien was in charge of R&D and Industrialization teams. Then, he managed the Manufacturing, Quality Control, Logistic team’s for Theradiag and Operation management for IDS. He joined in the summer 2019 C4Diagnostics as Head of R&D and Industrialization.

Émilie Fugier

Émilie Fugier

Founder & Head of Technology and Innovation

After a PhD in microbiology and immunology, Emilie has managed various scientific projects involving different pathogenic organisms with industries (CHEMUNEX) and hospitals (CHU Grenoble, Hôpital St-Joseph Marseille). In 2012, she joined Sam Dukan’s team in the CNRS to work on the technology used by C4Diagnostics. She is  managing R&D projects as Head of Technology & Innovation.

Thierry Maunier

Thierry Maunier

Head of Quality & Regulatory Affairs

Quality Engineer & M.Sc. in Microbiology and Immunology, Thierry served as Quality Assurance and Quality Control Manager in various Medical Device design and manufacturing companies. Quality Systems he implemented and managed have efficiently fulfilled international standards (ISO13485, ISO9001) & International Regulation requirements (MDR, MDIVD, 21CFRs, SOR). He joined C4Diagnostics in April 2019.

Heads of C4Diagnostics - November 2020

Executive profils of C4Diagnostics : Thierry Maunier, Younes Lazrak, Emilie Fugier, Thomas Tran, Gaël Combemale, Damien Thomas

Board & Advisors

Gaël Combemale

Gaël Combemale

Chief Financial Officer

With a Master in Business management and Administration, Gaël has 5 years of experience in ERP, as well as 6 years in corporate financial management. Since January 2020, he joined the C4Diagnostics’ team and manages of all the financial aspects.

Sam Dukan

Sam Dukan


Former student of the Ecole Normale Supérieure in Paris, then research director leading a team of up to 12 people in CNRS (National Center of Scientifical research), Sam has worked during his all career within big groups like Suez Environnement or CIBA, on application challenges, witnessing technical and operationnal adaptability. Author of 45 scientific publications and co-inventor of 8 patents, Sam is also the CEO of Diamidex.


Medical Affairs

Medical Affairs – 20+ years exp.

Independant (former Qiagen, EMD Serono)


Board member

Investment and growth capital – 5 years exp.

Associate (Turenne Capital)


Board member

Finance – 10 years exp.

Advisor in Innovation Management

Jean-François GRENIER

Market Access

Strategy advisor – 25+ years exp.

Angels santé (former Bayer, Bristol-Myers Squib)


Board member

Accounting management – 20+ years exp.

General Manager (Cisbio Bioassays)


Board member


Managing Director (Click Chemistry Tools)


Board member

FInance – 30+ years exp.

Investment Manager (CAAP Création)