"If you are trying to make a positive difference,
you deserve to have a bigger impact"


Need support to scale and grow with a positive ROI?

I'm Gilles Toussaint*, founder of GT Impact.
I help scientific, music-tech, and mission-driven tech-companies to scale up & grow their revenue with multi-channel content marketing.
(and I'm also a CMO with a Ph.D. in Science).

I learned a lot through an atypical career including a Ph.D. in Chemistry and 9 years of entrepreneurship and leadership experience (with 2.5 years as a CMO) in R&D, digital marketing, and sales for hyper-growing B2C and B2B2C scientific and music tech companies. !

With my network of collaborators at GT Impact, I use multi-channel digital marketing and hyper-targeted content strategy to help companies scale up and hyper-grow their revenue with positive ROI. I also support them to build the right growth team, establish a successful growth strategy, and become agile leaders in this digital world.

* you don´t know how to pronounce my name? It is fine, check it out here 😉 




"I would totally recommend to hire Gilles to work on your business growth"

Especially in the early growth phase, Gilles can contribute to build a new business unit from scratch! And he has the necessary skills and experience to develop sales funnels that focus on offline leads as well as online leads."

Lukas Pünder
(CEO, retraced GmbH)

"Revenue far beyond our yearly hyper-growth targets"

"As a CMO Gilles is an inspiring and reliable leader. He has built a fantastic marketing team with which he has achieved hypergrowth with revenues far beyond our yearly targets during two consecutive years. Moreover he is an Asana guru and agile organiser who has optimised communication and processes inside iMusician, leading to outstanding improvement of our efficiency and of our ability to scale up (with 3 international offices)."

Tobias Wirtz
(COO, iMusician Digital)

"Working with Gilles has been and continues to be a valuable learning experience."

"I specifically like his willingness to share his best practices based on his experience. He is very professional, knowledgeable, and willing to provide feedback and helpful suggestions for improvement. He has a positive attitude and is willing to commit himself to helping your business."

Tai Ford
(CMO, retraced GmbH)

"Gilles excels at hiring and is a very good organiser"

“Gilles excels at hiring! He has a good judgement of personality which proves essential in hiring strong candidates with complementary skills. He’d find efficient ways to conduct quick interviews and focus on the best people to fit in the team’s culture. He is also a very good organiser, solving problems in a structured way. When it comes to critical situations, he knows how to reallocate resources and efforts quickly and create a collaborative environment.”

Stela Zlatkova
(Sr Onsite, SEO and CRM Manager, iMusician Digital)


Hire the right employees or freelancers for your growth team

Do you want to build a growth team and to optimize the chances to hire the right people for your team?

Optimize your team productivity with digital tools and agile methods

Would you like to become more efficient and to optimize project management and communication in your company?

Increase your revenue with multi-channel content marketing

Do you want to work closely together to find new customers with growth hacking, agile marketing and the right digital strategy?

Do you want tips to
boost your revenue growth
& become an inspiring agile leader?


Be notified for new blog articles and videos about growth hacking, digital marketing, and agile leadership, as well as for every new episode of my podcast Mission First where I interview successful entrepreneurs with a sustainable mission.

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It is super easy:

click here to book a free call at a time that suits you best directly in my agenda!

We will take 30 minutes to discuss your challenges and we will evaluate together the different way I could support you.

It is free and non-binding.