Latest updates

The four business area’s that determine your success


The people, the organization and relevant propositions ‘empower the success’ of what professional service firms can bring to their respective markets.

Business Development

The strength of the professional ecosystem and go-to-market strategy determines the ongoing ‘book of business’ and the ability to win new business.

Reference Program

When ‘selling the invisible’ the importance of an effective reference program is crucial and often underestimated.

Marketing & Events

Strong focus on ‘getting the word out’ as well as gathering business intelligence can be achieved through executing a tailored M&E plan and continuous communication with clients.

Empowering service firms

The international team of experts provides a focused approach to support professional service firms with all aspects that determine success: Enablement, Business Development, Reference Program and Marketing & Events. With a range of tailored propositions, we support our clients to manage the changes and challenges they face. This can vary from focused projects that expand business with a new global account to executive search for senior hires, from improving team effectiveness to ad-interim leadership roles. Feel free to reach out to us for a full overview of our propositions.

Our clients tell their story

Get inspired by our international clients and projects on their road to succes.

Stanton Chase

With over 70 offices around the world Stanton Chase is a leading executive search firm. Reporting to the global executive board XtraAdvice partners helped to improve their global office evaluation and classification model. Subsequently Stef Oud of XtraAdvice was responsible for leading the Global Professional Services and Technology Industry for a little over two years.


With our XtraBusiness Workshop approach we support Professional Service Firms to boost and improve their business development results. Atos, a leading global consulting and technology firm, was an early XtraBusiness adopter that we helped to strategize and grow their business with a major international consumer market client.

Games for Health / Post IC app

The digital Post Intensive Care diary helps ICU patients with their recovery and deal with Post Intensive Care Syndrome. Due to the COVID-19 pandemic the need and demand for the Post IC solution has rapidly increased during the past months. XtraAdvice is supporting Games for Health, the firm that developed the solution, with the further roll out to hospitals around the world.

Work smarter, with our latest online and/or onsite programs

Meet our global team of professionals

Our partners all have a successful track record in their respective areas of expertise. In addition, we have developed a very powerful and well-connected business ecosystem by utilizing the networks of our partner team.

Stef Oud

  • Partner
Eindhoven Netherlands

Luc Swaab

  • Partner
Nijmegen Netherlands

Vera Melis

  • Partner
Eindhoven Netherlands

Fred van Eenennaam

  • Partner
Amsterdam & Boston Netherlands & US

Willem Bourgonje

  • Partner
Eindhoven Netherlands

Hans van den Hurk

  • Partner
Eindhoven Netherlands

Tamara Swaab

  • Partner
California, Davis US

Emile Aarts

  • Partner
Eindhoven Netherlands

Ron Mangun

  • Partner
California, Davis US

Frederic Ramioulle

  • Tethys Solution Partner
Arizona, Phoenix US

Stuart Layzell

  • Partner
Birmingham UK

Herman Diekman

  • Partner
Amsterdam Netherlands

Dereck Davey

  • Partner
Sydney Australia

Manfred Brouwer

  • Partner
Rotterdam Netherlands

Katalijn Ritsema van Eck

  • Partner
Arnhem Netherlands

Nick Hopmann

  • Associate
New York United States

Ralph Ruyters

  • Associate
Breda Netherlands

The experience and background we bring

XtraAdvice latest news

Our partners join Dutch Queen Maxima and Netherlands Trade delegation at City Hall in San Francisco
04 januari 2023

When Queen Máxima of the Netherlands visited San Francisco in 2022 to celebrate her country’s economic ties with the US, both prof Ron Mangun and prof Tamara Swaab of the University of California were invited as guests and also joined the royal reception at San Francisco City Hall. 

XtraAdvice at the World Economic Forum 2024 in Davos
04 januari 2023

XtraAdvice will be present at the World Economic Forum 2024 in Davos held from January 15th until the 19th. This WEF edition our focus will be on addressing mental health in organizations and presenting the Zero Burnout Initiative that XtraAdvice has developed. Please contact us via to learn more

We are involved: bring the Formula E Prix to the Netherlands
01 maart 2022

XtraAdvice and several of its partners and clients are involved in the efforts to “bring the Formula E Prix to the Netherlands. Our participation with the Formula includes a role as Chair for in the FE Advisory board.

The latest Professional Service Industry news

Bain & Company keeps Sustainability leadership in Belgian hands
12 July 2024

Global strategy firm Bain & Company has named Jean-Charles van den Branden as the new Global Leader of its Sustainability...

Supply Chain Company launches offices in Malaga and Leeds
12 July 2024

Supply Chain Company has taken a next step in its internationalisation ambitions with the launch of new offices in Spain...

RiskSphere adds Divya Joseph and Sixten Hager to team
12 July 2024

Dutch consulting firm RiskSphere has welcomed two new team members: Divya Joseph and Sixten Hager. The two new appointees will...

Keep in touch

Feel free to contact us for any questions, information about our services or an introduction to a tailored program that we can provide to support your organization.

    Or call us at: +31 6 515 796 22