Our story

Sterck! Group is the umbrella name for all our labels. The group combines experience within the world of payroll, international business, expat services and temporary employment, with the aim of making every related process as smooth and effective as possible, under the supervision of David Marx: the founder.

Sterck! Group offers a full-service package in the field of working and living. We simplify immigration processes, provide trusted payroll services, a seamless recruitment platform, and full-service solutions for furniture rental.

From finding a suitable living space to furnishing it, we do our utmost to ensure that our customers and employees receive fantastic service.

We serve all customers, locally and internationally with the same dedication. We always strive to provide excellent service. At Sterck! Group, we give personalized advice regardless of the industry or size of your company. Contact us to know how we can be of service to you.

Timeline

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2008

Founding of Strong Outsourcing

Since our establishment in 2008, we have had one goal: to help clients grow. We provide advice based on extensive knowledge and prioritize the customer. We do this with a team of 50 specialists who work enthusiastically and passionately every day!

Jan 2020

Founding of TOSS in Holland

Given the high demand for a complete solution for Expats, The One Stop Shop was created. From that moment on, we offer a wide range of services for expats and/or their employers in the field of immigration, registration, payroll, and housing under the name TOSS in Holland.

July 2021

IND Recognized sponsor

TOSS in Holland B.V. became an “IND recognized sponsor”. This means that we are a reliable partner for the IND and that we can sponsor highly skilled migrants coming to the Netherlands.

July 2022

Opening of our new office

Due to our rapid growth, we began searching for a new location for our headquarters. We left Koningin Wilhelminaplein and exchanged it for Orlyplein in Sloterdijk. A beautiful large building, right next to Sloterdijk station.

January 2023

Arie Uijens joins Sterck! group

In January, Arie Uijens Administration Office was taken over by Sterck! Arie and David have been working closely together for years and will continue to do so in the future.

July 2023

Founding of Qastle Ventures

The moment Qastle Ventures was launched, marking the beginning of our endeavor to build the homes of tomorrow. A vision for sustainable Expat Housing in Europe. We pioneer a transformative approach to expat life in Europe. With dedication to sustainability and innovation, our collaborative efforts with expats, developers, architects, and partners shape a new housing paradigm.

July 2023

First trainees at DEEFS

With DEEFS Professionals, we assist, support, and advise organizations in the fields of HR and Payroll. We internally trainees to become genuine payroll and HR experts.

November 2023

ISO certified

By the end of 2023, we achieved this certification, underscoring our commitment to safeguarding sensitive information and providing our clients with the assurance that we handle their data with utmost care.

Attaining this certification posed a challenge, yet we take pride in the enhancements made to our processes and security measures. We remain dedicated to fostering a secure environment for all our stakeholders.

December 2023

Change of name

Due to the impressive growth of TOSS, particularly targeted towards Expats, and the expansion of our staffing services primarily focused on the Dutch market, a new name has been chosen for TOSS Uitzenden: Sterck! Uitzenden. This name aligns better with our diverse range of services.

December 2023

Founding of Studio Sterck!

Our in-house marketing agency has been launched. Not only are we now handling the marketing for our own brands, but we’re also assisting external brands: our motto is ‘we make brands meaningful, measurable, and memorable.