Startupsby GlyphWhy it ranks
How the rank works- team of 5Team size · YC's directory+4
- went through YCProgram · this site+4
A sum of public facts, not a judgement and not investment advice.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
| AI | Not stated | Antler2025 | |
| AI, Devtools | Acquired | YCW23 | |
| AI, Data | Active | YCW25 | |
| AI, Devtools | Active | YCF24 | |
| Data | Acquired | YCW22 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
| Other | Not stated | 500 Global2012 | |
| AI | Active | YCW24 | |
| AI | Active | YCW24 | |
| AI | Not stated | speedrunSR006 | |
| AI | Active | YCX26 |
Also from F26 in AI
All of F26| Company | Category | Status |
|---|---|---|
| AI | Active | |
| AI, Devtools | Active | |
| AI, Data, Devtools | Active | |
| AI, Devtools | Active | |
| AI, Devtools | Active | |
| AI, Devtools | Active |
Founders
- Anton HantelFounder/CEO
- Madeleine MalmstenFounder/CTO
- Thilo TammeFounder/CPO
About Sona8
Sona8 uses AI voice agents to interview employees about how work gets done. Consulting, transformation and corporate development teams use it to hear from more people and follow up after changes. Employees open a link and speak in their own language. The agent asks follow-up questions, and teams compare problems across sites and departments. We’ve completed 10,000+ employee interviews and signed one of the world’s top three consulting firms. We’re building the context layer and operating system for strategy teams: combining employee knowledge with company data to understand operations, improve processes and put decisions into action. The same context will guide AI agents as they take over work, so the company keeps what it learns.
- YC batch
- F26 · Fall 2026
- Status, per YC
- Active
- Category
- AI, Developer tools
- Team size
- 5
- Location
- San Francisco, CA, USA
- Founded
- 2026
- Checked
- 6h ago
YC tags: B2B, Infrastructure, AI, Conversational AI
Changes seen
Newly tagged B2B; no longer tagged HR Tech.
Rewrote its one-liner; it read "Context layer from employee voices to improve & automate workflows"
Rewrote its one-liner; it read "Context layer for enterprise AI surveying employees with voice agents"
Newly tagged AI; no longer tagged Artificial Intelligence.
Team went from 4 to 5 people.
Rewrote its one-liner; it read "Voice agents that talk to employees enabling transformations"
Newly tagged Artificial Intelligence and Infrastructure; no longer tagged AI.
Sona8: questions
Which YC batch was Sona8 in?
Sona8 was in Y Combinator's Fall 2026 batch (F26).
Is Sona8 still active?
Y Combinator lists Sona8 as active.
Who founded Sona8?
Sona8's founders, as listed on its YC page: Anton Hantel (Founder/CEO), Madeleine Malmsten (Founder/CTO), Thilo Tamme (Founder/CPO).
Where is Sona8 based?
Sona8 lists San Francisco, CA, USA as its location on YC's directory.