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Sale of Primum non nocere to Grant Thornton

Paris (France), September 15th, 2022 – Grant Thornton integrates Primum Non Nocere, a CSR consulting expert with expertise in the fields of sustainable development, environmental health and health security.

FDC advises the founder of Primum Non Nocere – a French leader in CSR and environmental health services – on its integration into Grant Thornton

Primum Non Nocere offers one-stop-shop services for CSR: audit, technical studies, coaching, consulting and training. In addition, the company has created and developed the “THQSE” (Very High Sanitary, Social and Environmental Quality) label recognized by Responsibility Europe. Primum Non Nocere combines innovation, digitalization and complementary expertise. Primum Non Nocere is the leading CSR player in the very strategic healthcare sector (hospitals, clinics, maternity wards, etc.). For the past two years, Primum Non Nocere has successfully initiated a diversification (financial services, tourism, culture…) which will be consolidated and amplified in the context of the integration into Grant Thornton.

With a staff of about 40 employees with specialized and complementary expertise, Primum Non Nocere is a fast-growing player, driven by the quality of its service offering and by a dynamic market for environmental and health-related issues.

Financière de Courcelles initially supported Olivier Toma, founder of Primum Non Nocere, in his reflexion and structuring of the company to face the major challenges linked to a strong growth. Financière de Courcelles then organized privileged discussions with a number of players in the field of sustainable transformation with the aim of matching the company with the best partner and preserving its strong culture and values.

Olivier Toma – founder and CEO of Primum Non Nocere – will become a Partner of Grant Thornton. Olivier Toma comments: “We have particularly appreciated working with Financière de Courcelles which has always worked closely and in a perfect spirit with us. Financière de Courcelles has greatly contributed to the success of this operation by being a high value-added and trusted advisor for all parties involved in the transaction.”

This integration allows Grant Thornton to strengthen its expertise in CSR and environmental health. Robert Dambo said: “Grant Thornton and Primum Non Nocere are joining forces to accelerate the transformation of companies and organizations in the service of dedicated sustainable growth. Our common expertise allows us to propose more resilient models, reconciling societal and environmental challenges with the overall performance of companies.” For Nathalie Magraitte, Partner Grant Thornton, in charge of CSR strategy: “There are many challenges to the transformation of companies. It is urgent to accompany organizations in the transformation of their model. With the integration of Primum Non Nocere, we combine the strategic support of companies and organizations in all sectors with the field expertise of a team of experts, mobile throughout the country.”

Guillaume Piette, Managing Partner at Financière de Courcelles, concludes:

“We are delighted to have accompanied Olivier Toma and his teams in this major step in the history of Primum Non Nocere. This merger reflects Financière de Courcelles’ expertise in tailor-made support for founding managers and strengthens our sector expertise in the environmental consulting and impact company sector. Moreover, the long-term support provided to Olivier Toma illustrates the relevance of the Augmented M&A model developed by Financière de Courcelles.”

About Primum Non Nocere (PNN)

Founded in 2009, PNN offers a one-stop-shop of CSR services: auditing, support, labeling (via its own label “THQSE”) and training / e-learning. To do this, PNN has developed numerous digital, scalable and automated tools, making it a particularly innovative player. As a French reference in the health sector (hospitals, clinics, maternity wards, etc.), PNN has successfully initiated a diversification movement (financial services, tourism, culture, etc.) in a particularly fast-growing market for these issues.

About Grant Thornton 

Grant Thornton is an audit, consulting and financial advisory group. In France, it employs more than 2,000 people, including 126 Partners in 23 offices, and is positioned in 5 business lines: Audit, Consulting, Financial Consulting, Operational Consulting & Outsourcing and Legal & Tax Consulting. The presence of member firms in 130 countries throughout the world enables Grant Thornton to offer a complete and multidisciplinary range of services to executives whose needs require a global approach.


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