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AI infrastructure

PostHog

PostHog helps engineers build better products. We provide everything they need to make sure they are building something that people want. This means - product analytics, session replays, feedback tools, feature flags, experimentation, LLM observability, and a data warehouse (with SQL) with one click data imports from the places you use. We've been averaging ~10% monthly revenue growth, we are [default alive](http://www.paulgraham.com/aord.html), and we didn't raised a huge / now-overpriced round

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #4262

PostHog helps engineers build better products. We provide everything they need to make sure they are building something that people want. This means - product analytics, session replays, feedback tools, feature flags, experimentation, LLM observability, and a data warehouse (with SQL) with one click data imports from the places you use. We've been averaging ~10% monthly revenue growth, we are [default alive](http://www.paulgraham.com/aord.html), and we didn't raised a huge / now-overpriced round

source
generated read
High Signal interpretation

PostHog is classified as AI infrastructure from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
product analyticsLLM observabilityfeedback toolsfeature flagsexperimentationsession replaysdata warehousepeopleengineers
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to PostHog

AI infrastructure · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

HyperDX

match 70

HyperDX assists engineers in resolving production bugs more quickly with simple workflows that take you from alert to resolution. You can get set up in a matter of minutes and correlate debug telemetry all in one place, including logs, metrics, traces, and browser session replays, allowing you to resolve issues faster than ever before. HyperDX is open source and built on top of Clickhouse and S3, so customers can enjoy ten times the savings when compared to traditional vendors like Datadog.

shared extracted concepts: engineers; shared product terms: engineer, place, session, replay; shared product theme: sales and marketing; shared affiliation: Y Combinator

Kaya

match 64

Kaya is on a mission to help businesses achieve rapid growth through digital advertising. With our cutting-edge technology and experienced marketers, we deliver ad campaigns 10x cheaper, better and faster than traditional agencies. In less than a year, we’ve helped 120+ businesses achieve multiple fold growth on their ad campaigns, without the steep fees typically associated with high-quality marketing services. Check out what some of our customers have to say here: usekaya.com/reviews

shared extracted concept terms: people; shared product terms: growth, better, ve, com; shared product theme: sales and marketing; shared affiliation: Y Combinator

Amplitude

match 56

Since graduating from YC, Amplitude (W12) has made it to IPO and beyond by helping cutting edge startups become category leaders. We’ve pioneered the digital analytics category to become the go-to solution for AI pioneers (Cruise, Midjourney), apps that touch millions of consumers (Doordash, Coinbase), and the best in B2B (Atlassian, Rippling, Canva). With product analytics, experiment, CDP, session replay, and more, Amplitude’s digital analytics platform shows you what your users love, where th

shared extracted concept terms: session, replay; shared product terms: ve, analytic, session, replay; same category: AI infrastructure; shared affiliation: Y Combinator

Vector Legal

match 54

A modern solution for Startup legal. Vector combines premier lawyers/paralegals (averaging 10+ years of Big Law experience) + custom-built AI, so our clients get world class startup legal service at a fraction of Big Law rates. See our client testimonials - https://www.vectorlegal.com/testimonials. Services: fundraise & priced rounds | customer contracts | international flips | complex formations | grow your team | agentic data rooms | e-signatures | cap table management | legal health checks |

shared product terms: averag, 10, http, www; shared product theme: sales and marketing; shared affiliation: Y Combinator

Shaped

match 49

Connect your data. Train your models. Query text, user or session context and retrieve relevant results in milliseconds. Explore our case studies to see how we’ve helped leading brands drive significant engagement and revenue: https://www.shaped.ai/case-study.

shared product terms: session, ve, revenue, http; shared product theme: sales and marketing; same category: AI infrastructure; shared affiliation: Y Combinator

Helium

match 49

Helium is building self-improving software — AI that continuously experiments on key moments in the user funnel to boost revenue. Our first customer, a social app with 20M MAU, uses Helium to test new in-app paywalls to get more users to subscribe. Zach previously made $100M+ in growth experiments at Uber, Shishir led the first LLM features for Alexa, and Anish worked at Meta building ML to automatically experiment on ads, increasing Instagram ads conversion by 10%.

shared product terms: revenue, growth, llm, feature; shared product theme: sales and marketing; same category: AI infrastructure; shared affiliation: Y Combinator