Who uses PostHog?
Product analytics platform with session replay, experiments and an AI analysis assistant.
On usedby, 35 companies use PostHog, including Y Combinator, ElevenLabs, and 11X. 17 of them are confirmed by a published case study, quote or press release. 5 of them declared it to usedby themselves. The largest group: Artificial Intelligence companies with up to 200 employees (8 companies). Every company links to the public page that names it.
35 companies, each with its public proof
Strongest proof first. Open a company to see the page that names it, and when we captured it.
ConfirmedY CombinatorInvestment & VC
ConfirmedElevenLabsArtificial Intelligence
Confirmed11XSales Tech & CRM
ConfirmedArena (LMArena)Artificial Intelligence- ConfirmedCloudPeek
ConfirmedCounterPress
ConfirmedExaArtificial Intelligence
ConfirmedFastr
ConfirmedGrantable
ConfirmedHasuraDevTools & Infrastructure
ConfirmedKilo CodeDevTools & Infrastructure
ConfirmedResearchGate
ConfirmedRunable
ConfirmedSoundBoost
ConfirmedSupabaseDevTools & Infrastructure
| Company | Industry | Proof | First public proof | Source |
|---|---|---|---|---|
| Y Combinator | Investment & VC | — | posthog.com | |
| ElevenLabs | Artificial Intelligence | — | posthog.com | |
| 11X | Sales Tech & CRM | — | posthog.com | |
| Arena (LMArena) | Artificial Intelligence | — | posthog.com | |
| CloudPeek | — | — | posthog.com | |
| CounterPress | — | — | posthog.com | |
| Exa | Artificial Intelligence | — | posthog.com | |
| Fastr | — | — | posthog.com | |
| Grantable | — | — | posthog.com | |
| Hasura | DevTools & Infrastructure | — | posthog.com | |
| Kilo Code | DevTools & Infrastructure | — | posthog.com | |
| ResearchGate | — | — | posthog.com | |
| Runable | — | — | posthog.com | |
| SoundBoost | — | — | posthog.com | |
| Supabase | DevTools & Infrastructure | — | posthog.com | |
| Suped | — | — | posthog.com | |
| Lovable | Artificial Intelligence | — | posthog.com | |
| DocsBot | Artificial Intelligence | — | docsbot.ai | |
| Fini | Artificial Intelligence | — | usefini.com | |
| Rime | Artificial Intelligence | — | rime.ai | |
| Inkeep | Artificial Intelligence | — | inkeep.com | |
| SiteGPT | Artificial Intelligence | — | sitegpt.ai | |
| Airbus | Aerospace & Defense | — | posthog.com | |
| Clerk | DevTools & Infrastructure | — | posthog.com | |
| Convex | DevTools & Infrastructure | — | posthog.com | |
| Fireworks | — | — | posthog.com | |
| Greptile | DevTools & Infrastructure | — | posthog.com | |
| HeyGen | Artificial Intelligence | — | posthog.com | |
| Mistral AI | Artificial Intelligence | — | posthog.com | |
| National Design Studio | — | — | posthog.com | |
| Railway | DevTools & Infrastructure | — | posthog.com | |
| Raycast | Workplace Software | — | posthog.com | |
| Resend | DevTools & Infrastructure | — | posthog.com | |
| Startengine | Investment & VC | — | posthog.com | |
| Legora | Legal & Compliance | — | posthog.com |
What customers say PostHog changed
Figures and quotes as PostHog and its customers published them, each tied to its source. We quote, we do not measure the result.
“PostHog is really the connective tissue behind a lot of what we’re doing. So many things depend on it, and it adapts as fast as the product does.”
Job RietbergenHead of Growth, KiloCode, Kilo Code“Endpoints has effectively given us the power to keep up with them without spending a penny on analytics.”
Jay CollettFounder & CTO, CounterPress, CounterPress“Even in alpha, Workflows has been at least one-tenth of the time it would’ve taken us to build something we’d actually put in production in Zapier.”
Evan Rallisleads product, GrantableArena (LMArena)RunableHasura- More stories
Read how Suped uses PostHog- Read how Fastr uses PostHog
Read how Lovable uses PostHog- Read how SoundBoost uses PostHog
- Read how Exa uses PostHog
Is PostHog used in companies like yours?
By industry
7 industries among 35 customers. 31% are in Artificial Intelligence. Of the 16 with a known size, 81% have up to 200 employees.
- Artificial Intelligence11
- DevTools & Infrastructure
8 - Investment & VC2
- Aerospace & Defense
1 - Legal & Compliance
1 - Sales Tech & CRM1
- Workplace Software
1
By industry and company size
| Industry | Customers | ≤ 200 | 201–1,000 | > 1,000 | Unknown |
|---|---|---|---|---|---|
| Artificial Intelligence | 11 | 8 | 2 | 0 | 1 |
| DevTools & Infrastructure | 8 | 5 | 0 | 0 | 3 |
Employees per company. Every proof level counts, job posts included. A company with no stored size gets its own column, never counted as small.
Which Data platforms & analytics tools companies use, by industry: Artificial Intelligence · DevTools & Infrastructure · Investment & VC
What PostHog does, and what to check
What PostHog does
Product analytics platform with session replay, experiments and an AI analysis assistant.
Written by usedby from posthog.com.
Security
- SOC 2 Type II
Pricing and terms
- Data residency
- EU, US
- Data processing terms
- A data processing agreement is available.
- Free trial
- Free trial or free plan available.
Integrations
Stripe
HubSpot
Slack
Read on trust.posthog.com, checked Nov 13, 2026
Read on posthog.com, checked Nov 13, 2026
Questions to ask in your demo
- Which of your customers look like us, by industry and size?
- What does a pilot cost, and what decides the move to a full contract?
- Where is our data stored, who can access it, and is it used to train models?
- How does PostHog work with the tools we already use?
PostHog alternatives, by public customers
Same or competing category, from another vendor. Every proof level counts. A shared category alone does not establish the same functions or suitability for your task.
- PostHogThis toolReference
SnowflakeCloud data platform for analytics and AI1 shared with PostHog1 sharedPostHog vs Snowflake →
HexAI data workspace with agentic notebooks, self-serve analytics and data apps built from prompts.2 shared with PostHog2 sharedPostHog vs Hex →
Monte CarloData and AI observability platform that monitors pipelines and AI agents to catch quality issues in production.0 shared with PostHog0 sharedWho uses Monte Carlo →
ThoughtSpotAgentic analytics platform that answers business questions in natural language from governed data0 shared with PostHog0 sharedWho uses ThoughtSpot →
HightouchCustomer data and AI platform for marketers: composable CDP, reverse ETL and AI decisioning on the warehouse.0 shared with PostHog0 sharedWho uses Hightouch →
Often used with PostHog
Other categories found at the same companies. All proof levels are included, including job-post signals. This does not establish an integration or joint use.
ResendEmail delivery & templates6 companies in common
SentryDevOps, SRE & incidents6 companies in common
ClayProspecting data & signals4 companies in common
OpenRouterAgent frameworks & AI gateways4 companies in common- SlackWorkspaces & project management4 companies in common
AmplemarketSales engagement & AI SDRs3 companies in common
Questions about PostHog
Who uses PostHog?
35 companies use PostHog (17 confirmed, 5 declared, 13 observed), including Y Combinator, ElevenLabs, and 11X.
What results do companies report with PostHog?
Companies that use PostHog report these results in public case studies. Grantable: it took Evan only 10 minutes to set it up (source: posthog.com, checked November 12, 2026). Arena (LMArena): Over the past six months alone, event volume increased 19× (source: posthog.com, checked November 12, 2026). CloudPeek: The results: 5–10x faster debugging and better reliability (source: posthog.com, checked November 12, 2026).
Is PostHog SOC 2 compliant?
PostHog states on its own website that it holds SOC 2 Type II. Source: trust.posthog.com, checked November 13, 2026.
Where does PostHog store customer data?
PostHog lists these data hosting regions on its own website: EU and US. Source: posthog.com, checked November 13, 2026.
Does PostHog offer a data processing agreement (DPA)?
Yes: PostHog states on its own website that a data processing agreement (DPA) is available to customers. Source: posthog.com, checked November 13, 2026.
Does PostHog integrate with Stripe, HubSpot, and Slack?
PostHog lists integrations with Stripe, HubSpot, and Slack on its own website. Source: posthog.com, checked November 13, 2026.
Does PostHog have a free trial?
PostHog states on its own website that a free trial or a free plan is available. Source: posthog.com, checked November 13, 2026.
Which industries use PostHog?
The industries with the most PostHog customers are Artificial Intelligence (11) and DevTools & Infrastructure (8).
What are the alternatives to PostHog?
Ranked by public customers (every proof level counts, job posts included), the top PostHog alternatives are Snowflake (92 customers, 1 shared), Hex (91 customers, 2 shared), Monte Carlo (69 customers, 0 shared), and ThoughtSpot (63 customers, 0 shared). See all PostHog alternatives.
How does usedby know who uses PostHog, and how current is it?
Each company here links to a public page that names it as a PostHog customer, and each line shows its proof level. A company that declared PostHog itself is marked Declared. The latest check ran on November 12, 2026. How usedby collects and checks its data.
Where this data comes from
Three proof levels
Main sources
- posthog.comNov 12, 2026
- posthog.com/customers/supabaseNov 12, 2026
- posthog.com/customers/ycombinatorNov 12, 2026
- 16 case studies, quotes and press releasesNov 12, 2026
- 5 customers declared it themselves
Cite this page
UsedBy.ai (2026). Who uses PostHog? 35 companies. Retrieved from https://www.usedby.ai/tools/posthog, latest check November 12, 2026.