Retym

General Purpose Semiconductors · Cupertino, CA · Founded 2021 · Privately Held (backing)

Manufacturer of semiconductors intended to excel at identifying and developing disruptive technologies. Retym is based in Cupertino, CA and was founded in 2021. It is valued at about $622 million as of Oct 2026, set by institutional fund marks, up 32% since its later-stage round in Mar 2025. It has raised $180 million across 1 recorded round; the latest was a $75 million Series D in Mar 2025.

PMV mark · valuation
$622.3M
Oct 2026
Since last round
+32%
Mar 2025
Total raised
$180.0M
Last round
Later Stage VC (Series D)
Mar 2025

Retym key facts

as of Oct 2026
  • Manufacturer of semiconductors intended to excel at identifying and developing disruptive technologies.
  • Retym is valued at approximately $622.3M as of Oct 2026, up 32% since its later-stage round, Mar 2025, per PrivateMarketView’s mark.
  • It has raised $180.0M across 1 recorded rounds; the latest was Later Stage VC (Series D) ($75.0M) in Mar 2025.
  • Notable investors include Spark Capital, Kleiner Perkins, Mayfield Fund, Fidelity, Arista Networks.
  • 4 institutional filers report fund marks on Retym across 84 filings.
  • Status: Privately Held (backing).
PrivateMarketView mark
LOW confidence
$622.3M

Up 32% since its later-stage round, Mar 2025 ($472.5M post-money).

set by institutional fund marksas of Oct 2026question about this number?
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Institutional fund marks on Retym

4 filers · latest Jul 2026

4 SEC-registered funds reported 84 fair-value marks on Retym between Apr 2025 and Jul 2026. Filer-level marks and implied $/share are available to Pro members.

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Retym funding rounds

1 rounds
Mar 2025Later Stage VC (Series D)$75.0M▮

Retym valuation

Retym is valued at approximately $622 million as of Oct 2026. The figure is set by institutional fund marks. The reference point is its later-stage round in Mar 2025, at a $473 million post-money valuation; the current figure is up 32% since.

Recent activity

In the last 90 days, Retym's record added 8 institutional fund marks (latest period Jul 2026).

How much has Retym raised?

Retym has raised $180 million in total; 1 of its rounds is on record. The largest on record was a $75 million Series D in Mar 2025.

Institutional holders and vehicles

4 SEC-registered funds reported 84 fair-value marks on Retym between Apr 2025 and Jul 2026, in their N-PORT filings. Filer-level marks and implied per-share values are available to Pro members.

Retym investors

5 investors are on record for Retym, including Spark Capital, Kleiner Perkins, Mayfield Fund and Fidelity. The Series D in Mar 2025 drew 3 investors.

About Retym

Manufacturer of semiconductors intended to excel at identifying and developing disruptive technologies. The company specializes in building semiconductor technology to support optical communications and offer deep learning and AI tools, enabling businesses to build next-generation data centers by advancing optical networking and DSP technology.

Industry
General Purpose Semiconductors
Sector
Information Technology
HQ
Cupertino, CA, United States
Founded
2021
Employees
77
Website
retym.com/
Ownership
Privately Held (backing)

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