Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Kara

Active · Making Diamond Semiconductors

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 7
  • went through YCProgram · this site+4
  • team of 2Team size · YC's directory+2.5

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

Competitors

AIPacificShared: diamond wafer, data center, manufacturingYC S26San FranciscoStartup →
Companies closest to Kara
Company
PacificShared: diamond wafer, data center, manufacturingYC S26ActiveAI

Adjacent

OtherAdvent DiamondShared: diamond, semiconductor, quantumPlug and PlayUnited StatesStartup →OtherSinterShared: advanced materials, manufacturing, hardwareYC F26El SegundoStartup →OtherTurnover LabsShared: high purity, helpingMassChallenge Switzerland 2025United StatesStartup →OtherMobius MaterialsShared: manufacturing, hardware, semiconductorYC S20San FranciscoStartup →AIUltrasoniumShared: data center, manufacturing, hardwareYC S26BostonStartup →
Companies next to Kara
Company
Advent DiamondShared: diamond, semiconductor, quantumPlug and Play Not statedOther
SinterShared: advanced materials, manufacturing, hardwareYC F26ActiveOther
Turnover LabsShared: high purity, helpingMassChallenge Switzerland 2025Not statedOther
Mobius MaterialsShared: manufacturing, hardware, semiconductorYC S20ActiveOther
UltrasoniumShared: data center, manufacturing, hardwareYC S26ActiveAI

Also from S26

All of S26
AIProvenMetalAI-native electronics manufacturing for the American industrial baseYC S26San FranciscoStartup →AI83 SciencesAI-native materials discovery powered by unpublished experimental dataYC S26San FranciscoStartup →AIBizmarkOpenClaw for manufacturersYC S26San FranciscoStartup →AICarSignalThe AI Operating System for Auto Shops.YC S26San FranciscoStartup →AIDeepReach Inc.Network for Physical AI Data BusinessYC S26San FranciscoStartup →AIDonkeyThe AI-native trading company: factory prices, delivered, one numberYC S26San FranciscoStartup →
Company
ProvenMetalAI-native electronics manufacturing for the American industrial baseteam of 4hiringActiveAI
83 SciencesAI-native materials discovery powered by unpublished experimental datateam of 3hiringActiveAI
BizmarkOpenClaw for manufacturersteam of 2ActiveAI
CarSignalThe AI Operating System for Auto Shops.team of 2ActiveAI
DeepReach Inc.Network for Physical AI Data Businessteam of 6hiringActiveAI
DonkeyThe AI-native trading company: factory prices, delivered, one numberteam of 5ActiveAI

About Kara

Kara is building diamond semiconductors. We begin with growing ultra-high purity diamond wafers for advanced hardware. Used in data centers, spacecrafts, RF systems, and quantum hardware, our diamond moves heat up to 5× better than copper, helping critical systems run cooler, faster, and more reliably. Diamond has spent centuries as a symbol. We are turning it into infrastructure.

YC batch
S26 · Summer 2026
Status, per YC
Active
Category
Other
Team size
2
Location
San Francisco, CA, USA
Checked
6h ago

YC tags: Hardware, B2B, Manufacturing, Advanced Materials

Kara in S26: 229 companies, 88% AI

Kara: questions

Which YC batch was Kara in?

Kara was in Y Combinator's Summer 2026 batch (S26).

Is Kara still active?

Y Combinator lists Kara as active.

Where is Kara based?

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