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Relace

YC W23

San Francisco, US · Founded 2022 · 7 employees · Hiring · 7 known investors

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Relace builds specialized small language models and infrastructure for coding tasks including retrieval, merging, and code generation, serving software development teams looking to accelerate development and reduce errors in engineering workflows.

Also known as Squack Inc. · Squack

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W23)

Relace was founded in 2022 by Preston Zhou and Eitan Borgnia.

PZPreston Zhou
Preston ZhouFounderPreston Zhou has a background in physics and machine learning.
EBEitan Borgnia
Eitan BorgniaCOO and CofounderEitan Borgnia studied mathematics at Caltech and completed doctoral work in machine learning at the University of Chicago.
ES
Elijah Sorey

Investors · 7

Andreessen Horowitzlisted by Andreessen HorowitzMenlo Park · $500K – $50M

How we know: a16z's portfolio · funding news · relace.ai · Y Combinator's founder network · Not right? Tell us

Matrixlisted by MatrixSan Francisco · $100K – $10M

How we know: funding news · relace.ai · the VCSheet dataset · matrix.vc · Y Combinator's founder network · Not right? Tell us

Pioneerlisted by PioneerToronto, Ontario

How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · relace.ai · open dataset · 5k.vc investor directory · Not right? Tell us

Liquid VenturesreportedSan Francisco · $250K – $5M

How we know: Y Combinator's founder network · Not right? Tell us

Phoenix FundreportedNew York

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

$46M disclosed across 2 rounds · 2025

Source: company announcements and press reports — follow each round's link for the claim.

Related companies · 6

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SolaceSolace provides an event-driven data platform that enables real-time movement and distribution of data across legacy systems, clouds, and edge devices for enterprises. The company serves organizations across capital markets, manufacturing, aviation, retail, logistics, and the public sector that need to process millions of events per second with minimal latency.
Retell AIRetell AI builds an enterprise-grade voice AI platform that handles phone calls for industries including healthcare, delivery, and insurance. The platform enables businesses to automate customer-facing voice interactions.
OpenRouterOpenRouter operates an AI gateway that allows developers to access and compare hundreds of language models from multiple providers in a single platform. The service eliminates vendor lock-in while offering improved pricing, uptime, and reliability for companies and developers.
RescaleRescale provides cloud-based engineering and R&D platform with simulation, modeling, and digital engineering tools for enterprise engineering teams across multiple industries. The platform offers pre-configured workflows, software integrations, and enterprise security controls to accelerate innovation and discovery in engineering and scientific research.
ResquaredResquared is an AI outbound sales platform that helps businesses reach local brick-and-mortar establishments using a database of 14M+ verified local businesses, AI-powered personalized outreach, and built-in email delivery. The platform serves sales teams, brokers, agencies, and SaaS companies selling to Main Street businesses across various industries.

Companies working in the same space as Relace.

Legal entities · 1

corporate structure
Squack Inc.

In the news

Relace Raises $23M to Build the Rails for Software On Demandrelace.ai · Oct 2025Relace - Cheaper, faster, and more reliable AI code generation.ycombinator.com · May 2025Relace Funding | $0 Revenue | Complete Analysis | Extruct AIextruct.ai

Frequently asked questions

What does Relace do?
Relace builds specialized small language models and infrastructure for coding tasks including retrieval, merging, and code generation, serving software development teams looking to accelerate development and reduce errors in engineering workflows.
Who founded Relace?
Relace was founded by Preston Zhou, Eitan Borgnia in 2022.
Who are Relace's investors?
Relace's investors include Amino Capital, Andreessen Horowitz, Matrix, Pioneer, Y Combinator, Liquid Ventures, Phoenix Fund.
How much funding has Relace raised?
Relace has disclosed $46M raised across 2 rounds.
Where is Relace headquartered?
Relace is headquartered in San Francisco, US.