22 January 2025
Top 10 Crowdsourced Testing Service Companies
26 October 2025
8:18 MIN Read time 
BY
SRIYALINI
Today’s software development and delivery methods are very different from those of ten years ago.
Release cycles have accelerated due to Agile and DevOps; users now demand faultless performance on all devices, and product teams are releasing changes on a weekly or occasionally daily basis. Because of the demand to deliver rapidly without compromising quality, more firms are now looking outside of traditional in-house QA.
Crowdsourced testing is useful in this situation.
Companies are now using thousands of experienced testers and actual users worldwide for testing, rather than just a small internal team. These testers identify issues that no lab simulation could replicate by running apps and webpages on actual hardware, networks, and operating systems. It’s authentic, fast and surprisingly scalable.
Over the past decade, crowdsourced testing has grown from an experimental idea into a multi-billion-dollar industry. Giants like Facebook, Microsoft and Google rely on it to keep their digital experiences sharp and reliable.
Below, we will explore ten of the top companies leading this transformation, what makes each unique, and how they’re helping modern organizations achieve world-class software quality.
1. Testbirds:
One of the first firms to realize that testing required a global view was Testbirds, which was founded in Munich, Germany, in 2011. Philipp Benkler, Georg Hansbauer, and Markus Steinhauser founded the business, which soon grew to include offices in Stockholm, London, and Amsterdam.
Testbirds’ network now includes over half a million testers worldwide, giving clients instant access to real users across devices and geographies. Its services span UX, usability, IoT, and connected-device situations, and they go far beyond functional testing.
The Device Cloud, which enables businesses to test across an infinite number of hardware and software combinations without having to maintain their own device laboratories, is one noteworthy feature.
Testbirds continues to raise the standard for European businesses and international brands looking for dependable, controlled crowdtesting with strict data security guidelines.
2. Testlio:
If Testbirds brought crowdtesting to Europe, Testlio helped elevate it into a premium, fully managed service model. Founded in 2012 by Kristel and Marko Kruustük and headquartered in San Francisco, Testlio blends a network of elite testers with its proprietary platform and deep integrations into DevOps pipelines.
Testlio’s philosophy is quality over quantity — only about 3% of applicants are accepted into its network. These testers are then paired with client teams to deliver structured, scalable QA support across industries like finance, healthcare, and e-commerce.
Unlike purely open platforms, Testlio offers end-to-end project management. That means clients don’t just get testers — they get strategy, oversight, and analytics rolled into one. For enterprises that want the flexibility of the crowd with the rigor of a managed QA team, Testlio is hard to beat.
3. Testvox:
Testvox, which was established in Kerala, India, in 2017 by Pradeep and Hashir, approaches crowdtesting in a novel and flexible way. Serving startups and SMEs globally, the organization has grown from its foundations in functional and automated testing to performance and usability testing.
The flexibility of Testvox, which has several locations throughout Dubai, permits it to give clients at various phases of growth tailored QA solutions. It allows firms to test across devices, languages, and different cultural settings because its testers are diverse.
Testvox is an ideal solution for smaller teams that frequently cannot afford enterprise-grade testing since it offers flexibility, speed, and value without sacrificing quality.
4. Global App Testing:
Global App Testing, known as GAT, was founded in 2013. It brings together the best of both worlds: automated efficiency and real-human intuition. This London-based company’s platform connects to a network of testers across more than 190 countries, enabling clients to test in real-world conditions on a global scale.
GAT has worked with some of the biggest names in tech and telecom, such as Facebook, Verizon, and Spotify. Its approach focuses on real-world testing at real-world speed, identifying bugs, localization issues, and usability problems before they affect end users.
For digital products expanding internationally, GAT’s combination of automation, human testers, and actionable analytics makes it a go-to partner.
5. Ubertesters:
Ubertesters was established in 2013 and has a strong specialization in mobile-app testing. Its headquarters are in New Jersey. Businesses can access a verified worldwide network of testers with expertise in usability, localization, and regression testing through its cloud-based platform.
What makes Ubertesters stand out is its on-demand testing model — companies can scale QA resources up or down almost instantly. This makes it particularly useful for startups and app developers managing tight deadlines and frequent release cycles.
The platform also provides detailed reporting dashboards, allowing clients to track bug trends, performance data, and tester feedback in real time. For teams looking to combine flexibility with professionalism, Ubertesters delivers.
6. BetaTesting (formerly ErliBird):
Originally launched in Chicago in 2012 as ErliBird, BetaTesting is all about authentic user experiences. It connects companies with everyday people who test new products in their natural environments — giving developers raw, honest feedback that no automated script could replicate.
BetaTesting’s network spans over 200 countries and supports everything from apps and websites to hardware, games, and connected devices. Its clients range from scrappy startups to Fortune 500 companies, all looking to understand how real users think, feel, and interact with their products.
Rather than focusing solely on finding bugs, BetaTesting helps brands refine usability, user journeys, and customer satisfaction — making it ideal for pre-launch and beta-stage testing.
7. Bugcrowd:
While most companies on this list focus on functional and usability testing, Bugcrowd has built its empire on security. Founded in 2012 in Sydney, Australia (and now based in San Francisco), Bugcrowd pioneered the concept of crowdsourced cybersecurity — running bug bounty programs and vulnerability disclosure initiatives for organisations worldwide.
With over 275,000 security researchers in its network, Bugcrowd enables companies to discover and patch vulnerabilities faster than traditional penetration testing ever could. Its clients span government agencies, fintech firms, and global enterprises that handle sensitive data.
Bugcrowd isn’t your typical QA provider — it’s a defence-in-depth partner that helps teams stay ahead of evolving threats. In the age of constant cyber risk, that’s priceless.
8. Testeum:
Among the newer entrants, Testeum is making waves as a modern, lightweight crowdtesting platform designed for speed. The company connects professional testers with clients seeking fast, actionable feedback on mobile apps and websites.
What makes Testeum appealing is its rapid feedback cycle — companies can launch test campaigns, gather results, and iterate within hours. Its tester pool is growing quickly, offering device, demographic, and language diversity without the overhead of a fully managed enterprise model.
For digital agencies and startups that value agility and cost-efficiency, Testeum delivers professional-grade crowdtesting without the complexity of older systems.
9. uTest:
If you’ve been in QA long enough, you’ve probably heard of uTest. Originally launched around 2008, it’s one of the pioneers that turned the concept of crowdtesting into a global movement. Today, uTest operates as part of Applause, but it still retains its identity as a community of professional testers spanning every continent.
Through uTest, companies can access testers across nearly every device, operating system, and market imaginable. The platform supports functional testing, usability testing, and exploratory feedback across web, mobile, and connected devices.
Even after more than a decade, uTest remains the go-to entry point for many QA professionals — and a trusted partner for organizations needing real-world validation at scale.
10. Applause:
No discussion of crowdtesting would be complete without Applause. Founded in 2007 in the U.S. (and headquartered in Boston), Applause practically wrote the playbook for “in-the-wild” digital experience testing. Its global network of over 1.7 million testers covers nearly every market, device, and user demographic imaginable.
Applause’s services go far beyond simple bug discovery. It delivers holistic digital quality — from functional and usability testing to accessibility, payments, voice, AI, and IoT. Its enterprise clients include many of the world’s leading brands, who rely on Applause to ensure consistent, high-quality experiences across every digital channel.
With its deep expertise, global scale, and proven track record, Applause remains the gold standard in professional crowdtesting.
Conclusion: The Future Of Crowdtesting
As technology continues to evolve, one thing is clear: crowdtesting isn’t a trend — it’s the new foundation of software quality.
The rise of continuous integration, remote collaboration, and globally distributed development means companies need testing that’s equally distributed. Crowdsourced platforms deliver that agility — turning the world into one massive QA lab.
Some emerging trends to watch:
- Integrated workflows: Platforms like Testlio and Applause are embedding directly into DevOps pipelines for real-time bug tracking.
- Hyper-specialisation: Companies are focusing on niche areas like security (Bugcrowd), IoT (Testbirds), and early-stage user testing (BetaTesting).
- Speed and scalability: Agile newcomers such as Testeum show how feedback cycles can be compressed from days to hours.
For B2B leaders, product managers, and QA teams, the key takeaway is simple: real users create real results. Whether you’re validating a fintech app in India, a healthcare platform in Europe, or a retail site in the U.S., crowdsourced testing offers unmatched coverage, realism, and insight.
As the digital landscape grows more complex, partnering with the right crowdtesting company could be the smartest investment your product team makes this year.
22 January 2025
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