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AI infrastructure

OpenFunnel

OpenFunnel is the Search Engine for GTM. Searching for "B2B SaaS, 501-1000 employees, uses Salesforce" - is just targeted spam. Even if you get creative with LLMs to query these databases, everyone has access to the same commoditized databases, these databases lack insights about right timing or pain-points prospects face. OpenFunnel is a time-aware search engine for insights and activities in your target segment - that reveal pain. You can search for activities like: "Find companies looking to

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 #76

OpenFunnel is the Search Engine for GTM. Searching for "B2B SaaS, 501-1000 employees, uses Salesforce" - is just targeted spam. Even if you get creative with LLMs to query these databases, everyone has access to the same commoditized databases, these databases lack insights about right timing or pain-points prospects face. OpenFunnel is a time-aware search engine for insights and activities in your target segment - that reveal pain. You can search for activities like: "Find companies looking to

source
generated read
High Signal interpretation

OpenFunnel 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.

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 OpenFunnel

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.

Undermind

match 57

At Undermind, we're building a search engine that can handle extremely complex questions. It’s geared at experts, like research scientists and doctors, who need to find very specific resources to solve high-stakes problems. We’ve rebuilt search from the ground up to address this. Our new approach employs high-quality LLMs to adaptively explore a database, mimicking how a human researcher carefully discovers information. This approach dramatically outperforms (by 10-50x) traditional keyword searc

shared product terms: search, engine, llms, database; shared product theme: developer infrastructure; same category: AI infrastructure; shared affiliation: Y Combinator

RethinkDB

match 49

RethinkDB is the first open-source scalable database for the realtime web. It exposes an exciting new access model -- instead of polling for changes, the developer can tell the database to continuously push updated query results to applications in realtime. RethinkDB allows developer to build scalable realtime apps in a fraction of the time with fewer engineering resources. RethinkDB features a pleasant and powerful query language that has useful queries like table joins and groupBy, a highly pa

shared product terms: query, database, acces, time; shared product theme: developer infrastructure; same category: AI infrastructure; shared affiliation: Y Combinator

Olio Labs

match 44

Olio labs uses AI to develop combination therapeutics that consider the thousands of interacting proteins in your body rather than targeting just one or two. Their lead combinations target obesity and are more effective with fewer side effects than Ozempic, the fastest growing drug of all time. Their custom ML built from real-world expertise and cutting edge AI searches trillions of combinations to find the perfect one.

shared product terms: uses, target, just, time; same category: AI infrastructure; shared affiliation: Y Combinator

Lumona

match 44

Lumona is an AI-enabled search engine featuring insights from social media. When you’re looking to buy a new phone, instead of adding reddit to the end of your search and opening tabs of threads that take forever to get through, you can search on Lumona to get all of that processed for you on one page so you can make the best decision while saving time.

shared product terms: search, engine, insight, look; same category: AI infrastructure; shared affiliation: Y Combinator

Worklytics

match 41

Worklytics identifies leading drivers of employee engagement, without the need for repetitive surveys. It does this by passively analyzing anonymous collaboration data, in tools like Google Workspace and Slack, and detecting patterns that lead to greater employee satisfaction. Worklytics uses these insights to promote positive organizational change by proactively nudging leaders and managers.

shared product terms: employee, like, uses, these; shared affiliation: Y Combinator

Stillwind

match 38

Our first product, Stillwind Search, makes finding an electronic part as easy as writing a text message. The search engine turns natural language queries into fine-grained specifications that are matched against our proprietary database of millions of parts. This is the first step towards autonomous electrical engineering.

shared product terms: search, find, engine, database; shared product theme: developer infrastructure; shared affiliation: Y Combinator