Martine Constant Consulting Group

The marketing agency that accelerates your growth

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A host of services adapted to your needs

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Strategic marketing

Let’s develop a forward-looking marketing strategy together

Audit Market positioning


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Operational marketing

Let’s set up tailor-made marketing projects

Advice Market research Mystery shopping Telemarketing Training – coaching Event marketing

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Social marketing

Let’s adopt a humane marketing approach

Consultancy Fundraising support Search for partners/sponsors Event organisation

Since 1995, we have been helping you...

A trustworthy agency with a loyal clientele

The flexibility of a company on a human scale
Concrete approaches to achieve your goals
A partner of choice for convincing, satisfying and retaining customers
Clients from various sectors

... to achieve excellence!

Our values






Our promises

Active listening

A personalized approach

Clear quotations 


Meeting deadlines


Regular monitoring

Our commitments

A local team 

Professional ethics

A sustainable and circular vision 

Our customers are satisfied!

Find out why they recommend us…

Our accreditations

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  • Chèque conseil at the creation of a company "THEMATIQUE CREATION" : 80% subsidies

  • Chèque Consultance stratégique in marketing and commercial development: 50% subsidies

  • Prime Consultance in Brussels: up to 60% subsidies

Martine Constant Consulting Group is a member of various professional associations and groups. Our numerous accreditations attest to the high quality of the services we offer.


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Martine Constant, that is:

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satisfied customers