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Startups14,448Programs29

14,448 startups · 29 programs

Sinter

Active · Accelerated plastics manufacturing

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

AIAtomic IndustriesShared: manufacturing, plastic, partYC W21ClevelandStartup →
Companies closest to Sinter
Company
Atomic IndustriesShared: manufacturing, plastic, partYC W21ActiveAI

Adjacent

OtherInactiveMadeSolidShared: advanced materials, 3d printing, hardwareYC W14EmeryvilleStartup →OtherInactiveVoodoo ManufacturingShared: 3d printing, manufacturingYC W17New York CityStartup →OtherAON3DShared: 3d printing, manufacturingYC W17MontrealStartup →AIBirch BiosciencesShared: plastic manufacturingYC S22PortlandStartup →AIDuraniumShared: advanced materials, manufacturing, productionYC S25San FranciscoStartup →
Companies next to Sinter
Company
MadeSolidShared: advanced materials, 3d printing, hardwareYC W14InactiveOther
Voodoo ManufacturingShared: 3d printing, manufacturingYC W17InactiveOther
AON3DShared: 3d printing, manufacturingYC W17ActiveOther
Birch BiosciencesShared: plastic manufacturingYC S22ActiveAI
DuraniumShared: advanced materials, manufacturing, productionYC S25ActiveAI

Also from F26

All of F26
AIApplied KineticsAI-native manufacturing for data center and energy projectsYC F26San FranciscoStartup →AIChemPilot.aiDiscover novel defense related materials/molecules.YC F26San FranciscoStartup →AIConfettiBuild hardware projects using plain-English promptsYC F26San FranciscoStartup →AIFaradayIndustrial aOS coordinating humans, agents, and machinesYC F26San FranciscoStartup →AIhorizontal.AI agents that run factory operations end-to-end.YC F26San FranciscoStartup →AIOpEraThe AI decision engine for factories, warehouses and fleetsYC F26San FranciscoStartup →
Company
Applied KineticsAI-native manufacturing for data center and energy projectsteam of 2ActiveAI
ChemPilot.aiDiscover novel defense related materials/molecules.team of 3ActiveAI
ConfettiBuild hardware projects using plain-English promptsteam of 2ActiveAI
FaradayIndustrial aOS coordinating humans, agents, and machinesteam of 2ActiveAI
horizontal.AI agents that run factory operations end-to-end.team of 2ActiveAI
OpEraThe AI decision engine for factories, warehouses and fleetsteam of 2ActiveAI

About Sinter

Sinter is a radically faster plastics pipeline, helping iteration heavy hardware teams evolve from prototypes to production parts on week-scale timelines.

YC batch
F26 · Fall 2026
Status, per YC
Active
Category
Other
Team size
2
Location
El Segundo, CA, USA
Checked
6h ago

YC tags: 3D Printing, Manufacturing, Advanced Materials

Changes seen

One-linerOct 26, 2026

Rewrote its one-liner; it read "Accelerating scaled plastics with additive technologies"

Source ↗

Sinter in F26: 219 companies, 89% AI

Sinter: questions

Which YC batch was Sinter in?

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

Is Sinter still active?

Y Combinator lists Sinter as active.

Where is Sinter based?

Sinter lists El Segundo, CA, USA as its location on YC's directory.