Meet Our Leaders

Our leadership is dedicated to empowering Testlio’s people and stakeholders to enable human possibilities.

Executive Leadership Team

Summer Weisberg
Chief Client Officer

Emeka Obianwu
VP, Alliances and Automation

Heldin Lind
VP, People & Culture

Michael Loiacono VP Sales Testlio

Michael Loiacono
VP, Sales

Kaspar Kikerpill
VP, Delivery Transformation

Asif Khan
VP, Finance

Yasmin Mounajed
VP, Marketing

Bill Toulias
VP, Engineering

Additional Leaders

Marielle Tamkorv
Associate Director of Client Services

Renata Amatore
Director, User Experience Testing

Rudolf Elbrecht
Senior Director, Delivery Excellence

Simona Mihăicuţa
Senior Manager of Testing Network Quality

Tom Chmielewski
VP of Strategic Development 

Venu Shinde
Director of Quality Engineering

Zach Chavez
VP, Global Media Delivery & Network

Kaia Saar
Financial Controller

Javier Mejia
Associate Director of Testing Delivery

David Sawyer
Sr. Director of Global Delivery

Helen Burge
Director of Digital Accessibility

Vanessa Alcorta
Delivery Talent Acquisition Manager

Michelle Surya

VP, Media & Entertainment

Ross Trampler
VP Sales, Americas


Kristel Kruustük

Marko Kruustük

Steve Semelsberger

Insik Rhee

Jeff Williams

Anthony Lee

Our Investors

Altos Ventures

Founded in 1996, Altos Ventures is a technology investment firm based in Silicon Valley. Through patient and pragmatic investing, Altos partners with early to growth stage technology companies operating in consumer and enterprise sectors, with the goal of building durable and compounding businesses over decades.

Spring Lake Growth Equity Partners

Spring Lake Equity Partners is a Boston-based private equity firm. They invest equity capital primarily in later-stage, technology-oriented private companies in sub-sectors such as software, digital media, mobile, data center infrastructure, healthcare IT, and business/financial services.

Techstars Ventures

Founded in 2006, Techstars began with three simple ideas—entrepreneurs create the future, collaboration drives innovation, and great ideas can come from anywhere. Today their mission is to make innovation accessible to everyone, everywhere.

Vertex Ventures

Vertex Ventures US was created to empower high-principled founders to innovate and disrupt. The quiet visionaries creating foundational B2B software will change the way people use technology—making the world a little better, safer, and easier.

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Get Ready to Roar!