Summer Weisberg Takes the Helm as Testlio’s Newly Appointed CEO
Former Testlio COO and industry veteran takes on the role of Chief Executive Officer (CEO) for the managed crowdsourced testing company.
Austin, TX – February 03, 2026 – Testlio, a leader in AI-powered managed crowdsourced testing, today announced the appointment of Summer Weisberg as CEO, marking a new chapter for the company as it moves into its next phase of growth.
Since joining Testlio in 2020, Summer has played a key role in shaping how the company scales delivery, supports enterprise customers, and evolves its platform. She steps into her new role after serving as Chief Operating Officer and, most recently, Interim CEO, where she sharpened Testlio’s strategic focus, aligned teams around clear priorities, and built momentum across the business. Under her leadership, Testlio strengthened its position as a trusted partner for enterprises needing fully managed, human-in-the-loop testing at scale.
Reflecting on her appointment, Summer shared, “I’m grateful for the trust and confidence placed in me by the Board, our leaders, and every TestLion. It’s both humbling and exciting to lead a company that cares so deeply about our customers and our community.”
A New Era for Testlio
The appointment comes at a pivotal time for Testlio as the company continues to invest in its AI-powered platform to make quality a key decision layer within release pipelines. The recent launch of LeoAI Engine™ is a major step in how Testlio helps teams combine AI and human expertise to improve product and release decisions, reduce risk, and move faster without sacrificing trust.
That shift is also why choosing the company’s next CEO mattered so much to the Testlio Board. The Board spent six months running a comprehensive search, reviewing more than a dozen candidates, and closely observing Summer’s leadership during her time as Interim CEO to ensure Testlio had the right leader to carry this momentum forward.
“From the outset of the search, we were aligned on what this next phase of Testlio requires,” said Kristel Kruustük, Testlio’s Founder and Board Director. “A clear growth strategy, disciplined execution, and leadership that sets and upholds a high bar. As Interim CEO, Summer consistently demonstrated the strategic clarity, operational discipline, and accountability needed to lead Testlio into its next chapter. We have full confidence in her leadership.”
As CEO, Summer will focus on accelerating Testlio’s growth strategy, expanding its AI-driven platform capabilities, and deepening its leadership in human-in-the-loop testing for modern, AI-enabled products.
She added, “Our next chapter is about scaling what makes Testlio different. We will continue investing in our AI-powered platform to bring speed and efficiency, while empowering our global community to apply human judgment, context, and insight where machines cannot. That combination is how we will drive Testlio’s next phase of growth.”
About Testlio:
Testlio’s fully managed and AI-driven crowdsourced testing platform connects global quality experts with product and engineering teams to ensure every release works for every user, everywhere. On 600K+ real devices. In 100+ languages. With 800+ payment methods. The company is 100% remote, with team members in 150+ countries. Female-founded, approximately 46% of full-time employees are women. Testlio’s clients include some of the world’s leading brands, such as Clari, Strava, Whatnot, Merck, and more. As an ISO 27001:2022 certified vendor and trusted Microsoft Supplier, we apply rigorous security measures aligned with global privacy expectations, such as GDPR, to every client engagement. Learn more at testlio.com.