Sinter

YC F26 · Active · Accelerating scaled plastics with additive technologies

Competitors

Companies closest to Sinter
Company	Category	Status	Program
AON3DShared: 3d printing, manufacturing, additiveActiveOther	Other	Active	YCW17
Atomic IndustriesShared: manufacturing, plastic, partActiveAI	AI	Active	YCW21
KaraShared: advanced materials, manufacturing, hardwareActiveOther	Other	Active	YCS26

Adjacent

Companies next to Sinter
Company	Category	Status	Program
MadeSolidShared: advanced materials, 3d printing, hardwareInactiveOther	Other	Inactive	YCW14
DuraniumShared: advanced materials, manufacturing, productionActiveAI	AI	Active	YCS25
Antropi RoboticsShared: manufacturing, hardwareActiveOther	Other	Active	YCF26
PashiShared: manufacturing, productionInactiveDevtools	Devtools	Inactive	YCW20
AiSupervisionShared: manufacturing, productionInactiveOther	Other	Inactive	YCW22

Also from F26

All of F26

Company	Category	Status
FaradayIndustrial aOS between humans, agents, and robotsActiveAI	AI	Active
Shepherd RoboticsRobots for high skilled labor powering AI infrastructureActiveAI	AI	Active
SuperRadiantEmbodied Scientific IntelligenceActiveAI	AI	Active
Agent 37Persistent sandboxes for agents like hermes, openclaw, claude codeActiveAI, Devtools	AI, Devtools	Active
Agent RelayThe infrastructure to run coding agents for your teamActiveAI, Devtools	AI, Devtools	Active
antimattrvoice-first hardware interface for human-agent interactionActiveAI	AI	Active

About Sinter

Sinter is creating a faster and radically more affordable American plastics pipeline, helping iteration heavy hardware teams evolve from additive 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: 31m ago

YC tags: 3D Printing, Manufacturing, Advanced Materials

Sinter in F26: 86 companies, 86% 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.

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.