1,803 Software Engineering SaaS Companies in 2026
Software engineering SaaS companies build the tools and infrastructure engineering teams ship with: CI/CD and DevOps, observability and monitoring, APIs and SDKs, testing, databases and internal developer platforms.
- Companies
- 1,803
- In LeadWave's database, October 2026
- Total funding raised
- $393.2B
- Across 673 funded companies
- Median headcount
- 21
- Of 1,368 with a known headcount
- Median year founded
- 2016
- Of 1,546 with a known year
The largest Software Engineering SaaS companies
The top 30 of 1,803, strongest matches first, then by size. Headcount is the latest known figure.
| Company | Website | Employees | Headcount | Funding | CEO | |
|---|---|---|---|---|---|---|
1 Splunk | splunk.com | 5,001–10,000 | 8,098 | $1B | Gary Steele | |
2 Notion | notion.so | 1,001–5,000 | 4,695 | $100M–500M | Akshay Kothari | |
3 OpenAI | openai.com | 1,001–5,000 | 4,500 | $334.3B | Denilson Torres | |
4 Dynatrace | dynatrace.com | 1,001–5,000 | 3,305 | $21.9M | Rick McConnell | |
5 Datadog | datadoghq.com | 1,001–5,000 | 3,135 | $147.9M | Olivier Pomel | |
6 Elastic | elastic.co | 1,001–5,000 | 2,808 | $162M | Ashutosh Kulkarni | |
7 Writer | writer.com | 51–200 | 2,267 | — | May Habib | |
8 SolarWinds | solarwinds.com | 1,001–5,000 | 2,246 | $15.7M | Mike Bennett | |
9 New Relic | newrelic.com | 1,001–5,000 | 2,152 | $214.5M | Lew Cirne | |
10 JetBrains | jetbrains.com | 1,001–5,000 | 1,247 | — | Sergey Dmitriev | |
11 AvePoint | avepoint.com | 1,001–5,000 | 1,214 | $430M | Kai Gong | |
12 Mistral AI | mistral.ai | 1,001–5,000 | 1,200 | $4B | Arthur Mensch | |
13 Clay | clay.com | 11–50 | 1,074 | — | Kareem Amin | |
14 WSO2 | wso2.com | 1,001–5,000 | 1,034 | $130.5M | Sanjiva Weerawarana | |
15 Factory | factory.ai | — | 1,019 | — | Matan Grinberg | |
16 JFrog | jfrog.com | 1,001–5,000 | 1,011 | $226.5M | Shlomi Ben Haim | |
17 Z.ai | z.ai | 501–1,000 | 990 | $1.3B | Damian Zhang | |
18 Postman | postman.com | 501–1,000 | 821 | $208M | Abhinav Asthana | |
19 Marqeta | marqeta.com | 501–1,000 | 797 | $530.1M | Jason Gardner | |
20 Nexthink | nexthink.com | 501–1,000 | 795 | $345.9M | Pedro Bados | |
21 Grafana Labs | grafana.com | 501–1,000 | — | — | Raj Dutt | |
22 Helmes | helmes.com | 501–1,000 | — | — | Viesturs Bulans | |
23 LeaseWeb | leaseweb.com | 501–1,000 | — | — | Con Zwinkels | |
24 WebPros | webpros.com | 501–1,000 | — | — | Christian Koch | |
25 Veracode | veracode.com | 501–1,000 | 732 | $114.3M | Sam King | |
26 Perforce | perforce.com | 501–1,000 | 691 | $30M | Mark Ties | |
27 AppLovin | applovin.com | 501–1,000 | 686 | $1.4B | Andrew Karam | |
28 Forter | forter.com | 201–500 | 650 | $525M | Michael Reitblat | |
29 Hugging Face | huggingface.co | — | 627 | — | Clem Delangue | |
30 Sensedia | sensedia.com | 501–1,000 | 625 | $21M | Kleber Bacili |
Software Engineering SaaS companies at a glance
- 57% are headquartered in United States, followed by United Kingdom.
- The largest is Splunk, with 8,098 employees.
- 673 have disclosed funding, $393.2B in total; 104 raised $100M or more.
- Half were founded before 2016, and 23% in 2020 or later.
- United States983 · 57%
- United Kingdom117 · 7%
- India76 · 4%
- Canada75 · 4%
- France50 · 3%
- Germany44 · 3%
- 1–10578 · 34%
- 11–50634 · 37%
- 51–200293 · 17%
- 201–500105 · 6%
- 501–1,00043 · 3%
- 1,001–5,00033 · 2%
- 5,001–10,0005 · 0%
- 10,000+0 · 0%
- Before 200038 · 2%
- 2000–2009178 · 12%
- 2010–2014336 · 22%
- 2015–2019637 · 41%
- 2020–2022295 · 19%
- 2023 or later62 · 4%
- Under $1M124 · 18%
- $1M–5M175 · 25%
- $5M–10M66 · 10%
- $10M–50M151 · 22%
- $50M–100M64 · 9%
- $100M–500M77 · 11%
- $500M–1B17 · 2%
- $1B+13 · 2%
How this list was built
A company is on this list if LeadWave tags it under software engineering, developer tools or APIs, or its description or website presents a product for engineering teams.
The data comes from LeadWave's database of SaaS and AI companies, last updated in October 2026. Companies that share a website are counted once. Headcount, funding and CEO come from public sources, so some fields are blank for smaller companies.
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- USA SaaS companies listFull list with CEO contacts
- UK SaaS companies listFull list with CEO contacts
- Europe SaaS companies listFull list with CEO contacts
Frequently asked questions
LeadWave's database lists 1,803 Software Engineering SaaS companies as of October 2026. This page shows the 30 largest; the full list, with CEO contacts, is part of our 15,000+ SaaS companies list.
By headcount, Splunk, with 8,098 employees, followed by Notion and OpenAI.
United States: 57% of those with a known headquarters, followed by United Kingdom at 7%.
OpenAI ($334.3B), Mistral AI ($4B) and Cursor ($3.4B), by total disclosed funding.
LeadWave's SaaS companies list covers 15,000+ companies and 16,000+ CEOs, with verified CEO emails, LinkedIn profiles, headcount and funding in one CSV. It's on the List of SaaS Companies page.
Being able to tell what a running system is doing from the data it emits: logs, metrics and traces. Observability tools collect that data and help engineers find the cause of an incident.