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AI agents

Retrofit

Retrofit is reimagining the future of secondhand shopping. We are a new vintage marketplace that uses AI agents to curate and personalize in-demand, trending inventory. We analyze social media trends, sales data, and personal style to find the best vintage pieces that fit an individual’s unique taste, size, and budget.

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 #5714

Retrofit is reimagining the future of secondhand shopping. We are a new vintage marketplace that uses AI agents to curate and personalize in-demand, trending inventory. We analyze social media trends, sales data, and personal style to find the best vintage pieces that fit an individual’s unique taste, size, and budget.

source
generated read
High Signal interpretation

Retrofit is classified as AI agents 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
secondhand shoppingAI agentsindividual
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 Retrofit

AI agents · 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.

Auctomatic

match 48

Auctomatic, a Y Combinator company, offers an auction and marketplace management system for all of those individual sellers on such sites as Ebay, Amazon, Overstock and others. The application lets you list your items as well as manage your sales, but it also helps you understand how to best optimize your selling and maximize profits. The company also received an investment from Paul Buchheit, the lead developer of Gmail.

shared extracted concept terms: individual; shared product terms: marketplace, sale, best, individual; shared product theme: sales and marketing; shared affiliation: Y Combinator

Circle

match 39

Mobile-first, inventory led thrifting platform enabling secondhand sales, focused on fashion and clothing

shared extracted concept terms: secondhand; shared product terms: inventory, secondhand, sale; shared product theme: sales and marketing

Zenamins

match 37

Zenamins is a comprehensive online vitamin subscription service that is personalized and designed specifically with the individual in mind. Zenamins was designed to make vitamin-taking easier, safer and more convenient. Simply select the vitamins, minerals and supplements you want or use the special online guide to determine which ones are best for you. Every four weeks subscribers receive a new Zenamins pack in the post. Zenamins uses pharmacy-grade technology to custom pack vitamins into daily

shared extracted concepts: individual; shared product terms: uses, best, individual; shared affiliation: Y Combinator

andMe

match 35

PandMe is a personal shopping assistant that finds the product and price suitable for the client's needs. It saves time and gets the best product recommendations for its users.

shared product terms: personal, shopp, find, best; same category: AI agents

Short Story

match 33

Short Story is a style discovery platform to help petite women find clothes that fit. The average American woman is 5'4" and petite, yet this remains an enormously underserved segment. We’re a team of curators passionate about finding style, quality, and fit for petite women. Our mission is to remove the “ugh” from the shopping equation and support petite women in telling their stories, stylishly and confidently.

shared product terms: shopp, style, find, fit; shared affiliation: Y Combinator

NOSO LABS

match 33

In the home services industry, field technicians are expected to handle three key tasks: diagnosing issues, making sales, and completing paperwork. It's rare to find individuals who excel at all three. We build AI agents to support technicians by improving diagnostic accuracy and helping them capture sales opportunities.

shared product terms: sale, find, individual; shared product theme: sales and marketing; same category: AI agents; shared affiliation: Y Combinator