About Us

Passbrains provides enterprise crowdsourcing solutions and services for digital assurance and crowdtesting, delivered through the passbrains platform. We leverage our global community of currently 50’000+ user testers, testing professionals and UX specialists for on-demand engagements in customer projects for market research, open innovation, design and field validation of apps and digital products.

Through our leading platform technology and proven processes we enable enterprises to rapidly identify and recruit members of the passbrains crowd from specific target geographies, matching a wide variety of different profile criteria such as demographic, language and professional skills, available devices and OS versions, mobile networks and more.

Passbrains delivers managed services for end-to-end project delivery and offers enterprises and channel partners to use the passbrains platform technology based on a white-label licensing agreement.

Passbrains operates global delivery centers in Europe, India and the U.S., serving global clients including fortune 500 firms across different industry sectors.

Management Team

  • Dieter Speidel


    Country: Switzerland
    Position: CEO, passbrains ag

    Founder & CEO of passbrains (formerly PASS Group). Board member of Crowdsourcing Asia. Serial investor in various IT startups. 25+ years of experience in software product development and system verification & validation. Former Co-Founder and Board Member of international industry associations such as Toolpoint, SiLA.

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  • Johannes Widmann

    Managing Director

    Country: Germany
    Position: Managing Director, passbrains GmbH

    A familiar name in the software quality assurance (QA) scene, Johannes Widmann holds the SAP Quality Engineer Certificate and is a Recognized Instructor for SAP Certified Engineers. Worked with major corporations such as Yahoo! and the sourcing platform SupplyOn.

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  • Vladan Vojimirovic

    Head of Platform Development

    Country: Serbia
    Position: Head of Platform Development

    Formerly working as a senior web applications developer for companies such as Ringier, Linum Internet Solution, Mia Media with more than 10 years of experience. Passionate with latest technology trends, Vladan manages passbrains’ platform development since the very start of the company in 2011.

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