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AI infrastructure

Legacy

**TL;DR:** Legacy (YC S19) is a startup focused on the fast-growing field of fertility and family planning. Founded at Harvard, the company has now raised $40M from leading investors like FirstMark Capital, Bain Capital Ventures, Section 32, Tribe Capital, and even celebrities like Justin Bieber, The Weeknd, and others. **What we're doing** We aim to change the outdated view that fertility is a "women's issue" by creating an accessible, affordable product for men & people with sperm. This includ

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 #1531

**TL;DR:** Legacy (YC S19) is a startup focused on the fast-growing field of fertility and family planning. Founded at Harvard, the company has now raised $40M from leading investors like FirstMark Capital, Bain Capital Ventures, Section 32, Tribe Capital, and even celebrities like Justin Bieber, The Weeknd, and others. **What we're doing** We aim to change the outdated view that fertility is a "women's issue" by creating an accessible, affordable product for men & people with sperm. This includ

source
generated read
High Signal interpretation

Legacy 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
Legacyfertility and family planningfertilityYC S19
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 Legacy

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.

CaptivateIQ

match 65

CaptivateIQ is on a journey to modernize the world of incentive compensation. Our hope is that people will feel more connected at work if there is greater transparency in how they are rewarded for their efforts. We partner with amazing companies like Carta, Intercom, Gong, and Newfront Insurance to simplify their commissions. Since launching in 2017, we have raised $63M and are backed by leading investors including Sequoia Capital, Accel, S28 Capital, Amity Ventures, and Y Combinator.

shared product terms: people, like, rais, lead; shared affiliation: Y Combinator

Vouch

match 57

Insurance... sounds slow, old-fashioned, and unexciting. Exactly. Insurance is broken, and it's failing fast-moving, innovative startups. Vouch is a new, technology-first insurance company backed with $185M in funding from world-class investors. Like Stripe for payments or Brex for credit cards, Vouch is creating the go-to business insurance for high-growth companies. We're doing this by making insurance fast, responsive, and focused on our high-growth and innovative customers. Instead of printe

shared product terms: focus, fast, investor, like; shared affiliation: Y Combinator

Loopt

match 57

Loopt, based in Silicon-Valley and backed by leading venture capital firms Sequoia Capital and New Enterprise Associates, has created an interoperable social-mapping service that allows individuals to use their location to discover the real world around them – enabling them to find and enjoy the people, places, and events that mean the most right here and now using their mobile phones. With Loopt, individuals will always know who’s around, what to do, or where to go

shared product terms: now, lead, capital, venture; shared affiliation: Y Combinator

Fiber AI

match 49

Fiber AI is the freshest data APIs for AI sales, recruiting, & growth products, with the freshest data on 40M+ companies, 850M+ people, and 30M+ jobs. You can search live company, people, and jobs data via APIs and webhooks for 10x cheaper than People Data Labs, Explorium, Cognism, CoreSignal, and others. We have verified emails and phone numbers for 4x cheaper than Clay, Apollo, and ZoomInfo. We've helped enterprises like HubSpot, Agent AI, Ramp, and Docusign, as well as fast-growing startups l

shared product terms: 40m, people, other, like; shared affiliation: Y Combinator

Cofactr

match 49

Innovative hardware teams use Cofactr to scale their electronic hardware from BOM through production, replacing spreadsheets and shelves with insights and on-demand infrastructure. We're a Y Combinator W22 company with growing revenue and backed with significant venture funding from VCs like Bain Capital Ventures.

shared product terms: re, grow, venture, like; shared affiliation: Y Combinator

SkinnyTax

match 26

SkinnyTax is a startup that provides affordable tax planning through an easy to use software with expert support.

shared extracted concept terms: plann; shared product terms: affordable, plann