Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

ClaimKit

Active · AI-native tax firm

WebsiteYC profile

Why it ranks

How the rank works
8signal of 100 · rising 8
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6

A sum of public facts, not a judgement and not investment advice.

Competitors

AIBruceShared: professional service, nativeArc 2023Startup →AIConeShared: professional serviceYC S22HyderabadStartup →AITokuma LabsShared: professional serviceAntler 2025JapanStartup →AISeroShared: professional serviceYC W22San FranciscoStartup →AICapitol AIShared: professional service, agencyYC S24WashingtonStartup →
Companies closest to ClaimKit
Company
BruceShared: professional service, nativeArc Arc 2023Not statedAI
ConeShared: professional serviceYC S22ActiveAI
Tokuma LabsShared: professional serviceAntler 2025Not statedAI
SeroShared: professional serviceYC W22ActiveAI
Capitol AIShared: professional service, agencyYC S24ActiveAI, Data

Adjacent

OtherBrandripeShared: service agency, professional500 Global 2022MalaysiaStartup →OtherScoro SoftwareShared: professional serviceAlchemist Class 8TallinnStartup →OtherFarmProShared: professional serviceAntler 2022USStartup →AIValidShared: agencyNeoStartup →AIDesaisivShared: professional service500 Global 2023Saudi ArabiaStartup →
Companies next to ClaimKit
Company
BrandripeShared: service agency, professional500 Global 2022Not statedOther
Scoro SoftwareShared: professional serviceAlchemist Class 8Not statedOther
FarmProShared: professional serviceAntler 2022Not statedOther
ValidShared: agencyNeo Not statedAI
DesaisivShared: professional service500 Global 2023Not statedAI

Also from F26 in AI

All of F26
AICollarAI-Native Investor RelationsYC F26San FranciscoStartup →AIDefiniteConnect operational data with finance to see what drives the numbers.YC F26San FranciscoStartup →AILyonFoundation models on enterprise transaction data.YC F26San FranciscoStartup →AIVolarenThe personal investing agent that comes to youYC F26San FranciscoStartup →AI0.securityThe autonomous cybersecurity teamYC F26San FranciscoStartup →AIAcyclic LabsAgent swarms that make long-running tasks exponentially fasterYC F26LondonStartup →
Company
CollarAI-Native Investor Relationsteam of 4ActiveAI
DefiniteConnect operational data with finance to see what drives the numbers.team of 3ActiveAI
LyonFoundation models on enterprise transaction data.team of 2ActiveAI, Data
VolarenThe personal investing agent that comes to youteam of 4hiringActiveAI
0.securityThe autonomous cybersecurity teamteam of 2ActiveAI, Devtools
Acyclic LabsAgent swarms that make long-running tasks exponentially fasterteam of 2ActiveAI, Devtools

Founders

  • Rachel HuangFounder/CEO
  • William MahonFounder/CTO

About ClaimKit

AI-native tax firm, starting with R&D tax credits in the US, UK, and Australia

YC batch
F26 · Fall 2026
Status, per YC
Active
Category
AI
Team size
4
Location
San Francisco, CA, USA
Founded
2026
Checked
6h ago

YC tags: Finance, B2B, AI

Changes seen

One-linerOct 29, 2026

Rewrote its one-liner; it read "AI-native professional services agency"

Source ↗
SubindustryOct 29, 2026

Subindustry changed from B2B to B2B -> Finance and Accounting.

Source ↗
TagsOct 29, 2026

Newly tagged Finance.

Source ↗
Joined a programOct 22, 2026

Joined Y Combinator's Fall 2026 batch (F26).

Source ↗

ClaimKit in F26: 219 companies, 89% AI

LinkedIn

ClaimKit: questions

Which YC batch was ClaimKit in?

ClaimKit was in Y Combinator's Fall 2026 batch (F26).

Is ClaimKit still active?

Y Combinator lists ClaimKit as active.

Who founded ClaimKit?

ClaimKit's founders, as listed on its YC page: Rachel Huang (Founder/CEO), William Mahon (Founder/CTO).

Where is ClaimKit based?

ClaimKit lists San Francisco, CA, USA as its location on YC's directory.