Who are we ?

Our mission: IBS supports each of these customers in their transformation projects. Our service offers :

Our consultants bring tangible and measurable results every day. They intervene permanently at all levels of the company, from the director to the operator, from the manager to the expert.

Our values

The IBS culture is based on a strong societal commitment which is found whatever our mission.

Otherwise, we commit ourselves to respect and promote the inter-company relationship Charter for responsible purchasing, among which:


Foster collaboration between major contractors and strategic suppliers


Reduce the risks of mutual dependence between contractors and suppliers


Ensure the territorial responsibility of companies


Purchasing : a function and a process


Dealing with environmental issues


Appreciate the Total Cost Order of Ownership (TCO)

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By listening to our customers and the markets, we are day after day more convinced of the validity of our main corporate values: openness, integrity and transparency.


IBS has acquired and developed a strong knowledge of the business world and the life of companies.

Complete follow-up

Thanks to a variety of experiences, we are able to assist each of our customers and ensure a complete follow-up of their projects.


Hervé Perrin

Improvalue Business Services Co-founder

Hervé shows a professional background of 30 years of technical experience and team management, purchase and procurement, project management, customer support and change management. Focus on results and customers with a strong sense of responsibility and commitment.

Before turning to consulting, he worked in the automotive industry at Renault, Faurecia and Carrier Transicold, in the energy industry at Itron, and in the wine and spirits field at Pernod-Ricard.

During his career, he managed teams in France and abroad, set up multi-cultural project teams in international environment. He took part in task forces for corporate strategy projects.

Since he joined the consulting business, he conducted missions to optimize customers performance in various industrial sectors and countries. He developed a strong expertise in project cost management and purchasing performance management.

Rithy Tep

Improvalue Business Services​ Co-founder

As a senior consulting professional, Rithy shows an extensive experience in conducting strategic projects involving Design-To-Cost, purchasing and economic performance approaches. He achieved tangible optimization results in various sectors such as automotive, transport, aerospace, nuclear, and biomedical.

Prior to joining consultancy, Rithy built his professional background through various positions related to cost management and purchasing management in the automotive industry.

As head of a business consulting excellence center, Rithy developed multiple-expertise solutions to support our customers in their seek of sustainable competitive advantage through innovation.


Dong Jiang LIU

Improvalue Business Services Co-founder

Dong Jiang LIU has a professional experience of more than 15 years.

He started his career with ERP/MRP/PDM systems at SINOPEC Group in China. Then he worked successively in quality of Purchasing Engineer / Cost Analyst for many companies in France, such as ATEXIS, Renault-Nissan Alliance, ON-X, etc.

With his recognition of both technical & economical cost drivers in various industrial sectors, he helped out customers from decrypting quotations from suppliers, fixing target price and streamlining procurement cost of global sourcing, especially, between France and China .

He is also a very skilled engineer-backgrounded economist, who can easily use methods (i.e. Design-to-Cost & Redesign to Cost, Value Analysis/Engineering, PUSH/PULL, virtual factory modeling) to correlate technical specification with cost breakdown.

He is the author of “Do you overdesign?” , “Chinese Automobile Industry Intelligence”.