Press Release merger Addition Knowledge House & Mylette

Mylette Group and Addition Knowledge House join forces for a stronger and broader service offering and will continue as AdditionMylette.

Woerden/Weesp, May 2026 – Mylette Group from Woerden and Addition Knowledge House (AKH) from Weesp announce a strategic merger. By combining their expertise, experience and service portfolios, a powerful organization has been created that can support financial institutions even better with complex change and transformation challenges.

The new combination has in-depth knowledge across various domains within financial services including Risk, Compliance & Regulatory, Asset Management and Tax Reclaim services,  essential in a financial sector that is continuously and rapidly evolving.

Why are Mylette and AKH merging?

The financial sector is digitalizing, internationalizing, and changing at a rapid pace. Both Mylette and AKH have built strong positions in consultancy, interim services, and (IT) solutions for complex, knowledge-intensive processes. By joining forces, this creates:

A broader and more comprehensive service offering
AdditionMylette provides consulting, expert services, and interim specialists for areas including Risk, Finance, Accounting, Reporting, Investments, IT, and regulatory obligations.

Greater strength and capacity
With decades of combined experience in banks, insurers, pension funds, and asset managers, the new organization benefits from strong domain knowledge and economies of scale.

A stronger market position
The merger brings together over 20 years of Mylette expertise (founded in 2001) with the specializations of AKH (founded in 2007).

About Mylette

Mylette is a specialized service provider for the financial sector, focusing on consulting, solutions, and expert services for knowledge-intensive processes. The company has extensive experience in Tax Reclaim, risk management, compliance, operational resilience (including DORA), trade processing, and software solutions. Mylette supports organizations with experienced consultants who create value during transitions and complex business processes.

René Dorresteijn and Cees Sep, both Managing Partners at Mylette:

“Our clients are facing increasingly fast and impactful changes. By joining forces with AKH, we are expanding and broadening our knowledge,” says René Dorresteijn. “In this way, we can offer a more complete product and service package and strengthen our innovative capabilities. This enables us to support our clients even better,” adds Cees Sep.

About Addition Knowledge House

AKH focuses on financial institutions and provides interim management, brokerage solutions, KYC/CDD expertise, and software for regulatory reporting. The organization works with banks, insurers, pension administrators, asset managers, and custodians. AKH is known for its transparency, fixed rates, and in-depth knowledge of Finance, Accounting, Reporting, Investments, Risk, and IT.

Henri Ho-Meau-Long, Managing Partner at Addition Knowledge House:

“The combination of our interim and regulatory expertise with Mylette’s solutions and consultancy strength creates a unique proposition in the market. Together, we are building a future-proof organization that delivers direct value to our clients.”

For questions regarding this press release, please contact Cees Sep,

Telephone: +31 6 54 77 85 57.

https://www.additionmylette.nl/

 

 From left to right: Henri Ho-Meau-Long, René Dorresteijn and Cees Sep.