WEBSITES
& APPS
Bring people together.
Strengthen your meaning.
Bring people together.
Strengthen your meaning.
Bring people together.
Strengthen your meaning.


We develop websites that inform and convert, and user-friendly apps that seamlessly integrate with your platform.
We develop websites that inform and convert, and user-friendly apps that seamlessly integrate with your platform.
We develop websites that inform and convert, and user-friendly apps that seamlessly integrate with your platform.
Websites
Websites
Websites
At the forefront of almost every platform is a smart, converting website. We design and develop responsive websites that inform, activate, and integrate with your platform.


Apps
Apps
A platform is truly complete only when users always have access—no matter where they are. We develop native and hybrid apps that function seamlessly, respond swiftly, and work together with your website.





Ease of use
Ease of use
Ease of use
The experience must be intuitive, fast, and easy.
The experience must be intuitive, fast, and easy.
The experience must be intuitive, fast, and easy.
Scalable
Scalable
Scalable
Both the website and the app grow along with your platform, in terms of content, functionality, and audience.
Does the platform provide sufficient added value for the requester, provider, and the platform itself?
Both the website and the app grow along with your platform, in terms of content, functionality, and audience.






Consistency
Consistency
Consistency
One platform, one experience. What you develop should feel intuitive across all touchpoints.
One platform, one experience. What you develop should feel intuitive across all touchpoints.
One platform, one experience. What you develop should feel intuitive across all touchpoints.
Conversion
Conversion
Conversion
The website as an active link in your funnel. Every design and flow support the goal of your platform.
Does the platform provide sufficient added value for the requester, provider, and the platform itself?
The website as an active link in your funnel. Every design and flow support the goal of your platform.



In over 20 years, we have developed multisided marketplaces in
various sectors. As a result, we understand the dynamics, challenges, and opportunities.
Job market
Job market
Job market
Healthcare organizations
Healthcare organizations
Healthcare organizations
Social organizations
Social organizations
Social organizations
Construction & logistics
Construction & logistics
Construction & logistics
Travel industry
Travel industry
Travel industry
Member organizations
Member organizations
Member organizations
Mobility
Mobility
Mobility
Financial services
Financial services
Financial services
Energy
Energy
Energy
Retail
Retail
Retail
Recommerce
Recommerce
Recommerce


Marion de Graaf
Product owner at Actief Werkt!
Product owner at Actief Werkt!
Product owner at Actief Werkt!
"With six different integrations on the website, we ensure that information flows quickly, processes run smartly, and the experience for users is smooth. Everything is set up to adapt to the market and what job seekers need.
Flex workers come to our website for a reason. They want work. That means we need to ensure they quickly find what they are looking for. The focus is therefore on job vacancies. That is where the greatest value for the candidate lies."
"With six different integrations on the website, we ensure that information flows quickly, processes run smartly, and the experience for users is smooth. Everything is set up to adapt to the market and what job seekers need.
Flex workers come to our website for a reason. They want work. That means we need to ensure they quickly find what they are looking for. The focus is therefore on job vacancies. That is where the greatest value for the candidate lies."
"With six different integrations on the website, we ensure that information flows quickly, processes run smartly, and the experience for users is smooth. Everything is set up to adapt to the market and what job seekers need.
Flex workers come to our website for a reason. They want work. That means we need to ensure they quickly find what they are looking for. The focus is therefore on job vacancies. That is where the greatest value for the candidate lies."
HOW
WE WORK
HOW
WE WORK
Whether it's a conversion-focused website or a mobile app: we ensure it perfectly aligns with your platform and strengthens your ambitions. Our strategists, designers, and developers form one team with you. We share the same mission, make data-driven decisions, and work purposefully towards results.
Whether it's a conversion-focused website or a mobile app: we ensure it perfectly aligns with your platform and strengthens your ambitions. Our strategists, designers, and developers form one team with you. We share the same mission, make data-driven decisions, and work purposefully towards results.
01
Strategy
We map out your goals and target audiences. What should the site or app do, for whom, and in what context? Together, we determine the right form, functions, and flow for maximum impact.
02
Design
We design attractive and user-friendly interfaces that work on every screen. From first impression to daily use, every click, swipe, or scroll contributes to trust, brand experience, and conversion.
03
Development
Using integrations and proven techniques, we build robust, scalable websites and apps. Always responsive, secure, and fast, tailored to your platform and systems.
04
Growth
After the launch, we optimize based on user data and feedback. From performance and accessibility to functionality and design: we keep improving, so your site or app grows with your ambitions.
01
Strategy
We map out your goals and target audiences. What should the site or app do, for whom, and in what context? Together, we determine the right form, functions, and flow for maximum impact.
02
Design
We design attractive and user-friendly interfaces that work on every screen. From first impression to daily use, every click, swipe, or scroll contributes to trust, brand experience, and conversion.
03
Development
Using integrations and proven techniques, we build robust, scalable websites and apps. Always responsive, secure, and fast, tailored to your platform and systems.
04
Growth
After the launch, we optimize based on user data and feedback. From performance and accessibility to functionality and design: we keep improving, so your site or app grows with your ambitions.
01
Strategy
We map out your goals and target audiences. What should the site or app do, for whom, and in what context? Together, we determine the right form, functions, and flow for maximum impact.
02
Design
We design attractive and user-friendly interfaces that work on every screen. From first impression to daily use, every click, swipe, or scroll contributes to trust, brand experience, and conversion.
03
Development
Using integrations and proven techniques, we build robust, scalable websites and apps. Always responsive, secure, and fast, tailored to your platform and systems.
04
Growth
After the launch, we optimize based on user data and feedback. From performance and accessibility to functionality and design: we keep improving, so your site or app grows with your ambitions.
CUSTOM + ACCELERATORS
With accelerators and integrations where possible and customization where it makes a difference, we arrive at one powerful ecosystem. Built on years of experience, tailored to your ambitions.
Built on years of experience, tailored to your ambitions.
With accelerators and integrations where possible and customization where it makes a difference, we arrive at one powerful ecosystem. Built on years of experience, tailored to your ambitions.
Built on years of experience, tailored to your ambitions.
Tech stack
Accelerators
Integrations
Tech stack
Accelerators
Integrations
Tech stack
Accelerators
Integrations
LAAT JE INSPIREREN
LAAT JE INSPIREREN
LAAT JE INSPIREREN



Why and how mediators need to redefine their value in 2026
Why and how mediators need to redefine their value in 2026
Why and how mediators need to redefine their value in 2026
Temp & flex



Recruiting Across Borders: How Platforms Are Changing the Game
Recruiting Across Borders: How Platforms Are Changing the Game
Recruiting Across Borders: How Platforms Are Changing the Game
Temp & flex
Platforms
Share your challenges or ideas with Sepp
013 - 539 00 40
Share your challenges or ideas with Sepp
013 - 539 00 40
Share your challenges or ideas with Sepp
013 - 539 00 40
Stay informed
of all new platform developments.
Stay informed
of all new platform developments.
Stay informed
of all new platform developments.































