Testliorevenue & funding
Software Testing ToolsTallinn, EstoniaFounded 2012CEO Steve Semelsberger
Testlio is a Software Testing Tools company based in Tallinn, founded in 2012.
Testlio revenue
Testlio has not published its revenue. GetLatka estimates it at about $75.6M a year (October 2024).
All 3 revenue readings, with sources
| As of | Revenue | Source |
|---|---|---|
| Apr 2016 | $3.2M | – |
| Dec 2023 | $49.6MEST. | GetLatka estimate |
| Oct 2024 | $75.6MEST. | GetLatka estimate |
– source not recorded
Testlio funding rounds & investors
Testlio has raised $19.5M across five rounds since 2013. The latest was a $12M Series B in October 2021.
| Date | Round | Raised |
|---|---|---|
| Oct 2021 | Series B | $12M |
| Apr 2016 | Series A | $6.3M |
| Nov 2014 | Convertible Note | $1M |
| Aug 2013 | Seed | $213K |
| Jul 2013 | Convertible Note | $25K |
| Total raised | $19.5M |
Testlio competitors
Testlio competes most directly with Rainforestqa.
| Company | Revenue | Funding | Employees | Customers | Founded |
|---|---|---|---|---|---|
| Testlio | $75.6M | $19.5M | 726 | – | 2012 |
 Rainforestqa | $25.7M | $41.2M | 141 | 150 | 2012 |
Testlio CEO, founders & employees
Steve Semelsberger founded Testlio in 2012 and runs it as CEO. Testlio had 726 employees (December 2024, LinkedIn), up from 658 a year earlier.
- Steve SemelsbergerFounder & CEO
All 7 headcount readings, with sources
| As of | Employees | Source |
|---|---|---|
| Dec 2024 | 726 | |
| Oct 2024 | 720 | |
| Dec 2023 | 658 | |
| Dec 2022 | 633 | |
| Dec 2021 | 498 | |
| Oct 2021 | 346 | – |
| Apr 2016 | 72 | – |
Testlio FAQ
What is Testlio's revenue?
GetLatka estimates Testlio's revenue at about $75.6M a year (October 2024). The company hasn't published its own figure.
How much funding has Testlio raised?
Testlio has raised $19.5M across five funding rounds. The latest was a $12M Series B in October 2021.
How many employees does Testlio have?
Testlio had 726 employees in December 2024, according to LinkedIn.
Who is the CEO of Testlio?
Steve Semelsberger is the CEO of Testlio and founded the company in 2012.
Who founded Testlio?
Steve Semelsberger founded Testlio in 2012.
Browse Software Testing Tools
How this page is sourced
5 from public sources · 2 estimates. Founder figures link to the second they were said; public figures name their source; estimates are marked EST. and say whose they are. Not financial advice.
Updated Aug 20, 2026Data disclaimerReport a correctionClaim this profileRun Testlio? Join the podcast