Testlio empowers innovative engineering teams to test smarter.

We bring together a global network of expert freelancers, dedicated services professionals, and an integrated platform to provide flexible and strategic software testing at scale. The world’s biggest companies and most innovative brands partner with us to release better products faster.


full-time employees


client tests executed


test runs completed


less than 3% of applicants are accepted into the network


tester languages


tester countries


devices covered, all around the world


vetted freelancers


client nps score

Awards and Recognition

Leader, Test Management

High Performer, Software Testing

High Performer, Mobile App Testing

Momentum Leader, Software Testing

Momentum Leader, Mobile App Testing

Case studies

Leading Sports App Case Study

Leading Sports App Case Study

Our client, a top-15 sports app and website with multi-sport streaming, score updates, and news, increased their app store rating by 22% after partnering with Testlio.
SAP Concur Case Study

SAP Concur Case Study

Concur tripled their fixed issues since switching from their crowdsourced testing vendor to Testlio. See the difference between a network and a crowd of testers.
QSR Happy Path Testing Case Study

QSR Happy Path Testing Case Study

Creating confidence for a QSR feature rollout with significant revenue implications.

About Testlio

Testlio is the originator of networked testing. Our software testing platform, global network of expert freelancers, and robust client services power burstable software testing. In any location. On any device. In any language.

Testlio clients include American Express, CBS, Microsoft, the NBA, Netflix, and SAP. Collectively, they have awarded us an industry-leading 4.7 G2 rating and an NPS of 75.

Meet our leaders

Kristel Kruustük
Founder & Chief Testing Officer


Marko Kruustük
Founder & COO


Steve Semelsberger


Summer Weisberg
Chief Client Officer


Jaanus Ranniit
Chief Technology Officer


Julie Neumann
VP, Marketing


Emeka Obianwu
VP, Partner Ecosystem


Kerli Rungi
VP, Learning & Development


Michelle Surya
VP, Media & Entertainment


Kaspar Kikerpill
Testing Network Director


Heldin Lind
VP, People & Culture


Meet some of our people

We power networked testing to enable human possibilities.

Our Purpose reflects why we exist. It drives our meaning and our identity. It is the essence of who we are.


Through our Platform, our Services, and our Network, we are an enabler. We equip. We activate. We energize.

Networked Testing

We are the originators of this unique approach to software testing. Fundamentally, networked testing is a philosophy and set of practices that are tuned to deliver exceptional quality assurance.

Enable human possibilities

We create possibilities for users of our customers’ products. Client engineering teams experience new possibilities via Testlio. Our employees work, earn, learn and grow. Freelancers do what they love and make better than market rates with Testlio. Our investors prosper with us. Finally, we make the world better through social impact programs like Ignite. Everything Testlio does is in the spirit of serving people, allowing each human to realize new possibilities.

We imagine software experiences that energize the world.

Our Vision is what we see. It’s how we envision the impact that we make and the potential for our company as a whole.


Our ability to creatively see a new horizon is differentiating. We dream big. We see a bright and glorious future.

Software experiences

At our core, we test software. All forms and types of software. And the experience of that software by humans and machines is instrumental to all aspects of global society.

Energize the world

If we power great networked testing, we can participate in the development of the next generation of software products that exceed our current, wildest sense of the possible. Beyond bug-free, we imagine fun, fast, friendly, exhilarating, intuitive, joyful, surprising, powerful software.

Our Values

With six values tethered to the employee experience and a sense of purpose that drives our day-to-day, Testlio is unstoppable in our quest to fuel amazing app experiences.


Give a damn

Care about what you do. Channel your passion. Be a self-starter. Deliver surprisingly great client experiences. Find ways to be hopeful, even when it’s hard.


Challenge yourself

Try things that scare you. Be willing to fail. Get out of your comfort zone. Develop resiliency, especially through thoughtful recovery.


Team is everything

Be humble, honest, authentic. Make others around you better. Practice generosity. Be transparent. Communicate. Really get to know people you work with—including our clients.


Be kind

Help without being asked. Seek to understand first. Demonstrate compassion. Foster meaningful relationships. Be thoughtful and respectful. Show appreciation.


Make an impact

Be client-centric. Prioritize important things. Push for meaningful results. Challenge the status quo. Seek to transform Testlio and our industry.


Foster inclusion

Strive to hire and collaborate with people of broad identities. Welcome people. Respect individual differences. Create opportunities for equity. Embrace alternative perspectives. Nurture feelings of belonging.


We are a globally distributed company. We embrace our Estonian origins with a hub in Tallinn. Our freelancers work in 150+ countries. Our US team works mostly from home offices with clusters in Austin, the Bay Area, and Southern California. Below are some of the places you can reach us.

Tallinn, Estonia

Telliskivi 60 Estonia, 10412

Palo Alto, California

345 California Avenue
Palo Alto, CA 94306

Section background

Let’s get started

Get our monthly email newsletter covering testing trends, insights, and events.