Sinter (YC F26) — Accelerating scaled plastics with additive technologies
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.
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What it does Accelerating scaled plastics with additive technologies (source)
Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
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.
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Read from the page's own HTML and response headers on 10 September 2026, at https://www.sinter.systems/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Fast, affordable injection molding with production and support based in the United States.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Oliver Johnson
Founder/CEO
Sinter F26
Justin Kwon
Founder/COO
Founder at Sinter (YC F26) looking to expedite plastics manufacturing.
Previously Mechatronics at Shinkei Systems working on robotic fish processing and SWE at Manifold Labs working on FSDP model training.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 163 companies held here in Industrials › Manufacturing and Robotics.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Want the whole picture on Sinter?
Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
A Full Report on Sinter: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Sinter covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
5 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
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