United States · Series D startup

Who invested in Synchron

2 rounds we have observed, with the 15 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Medical Devices

Raised 12 months ago

Funding summaryUpdated 5 Nov 2026

$310Mraised across 2 rounds since 2005, from 4 sources

$5.0MVenture$305MSeries D
Latest round
Series D, $305MNov 2025
Led by
Double Point Ventures
Step-upi
61×
Investors
15 (1 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2005200820112014201720202023
$5.0MVenture$305MSeries D
First round
Venture, $5.0M
Jan 2005
Biggest round
$305M
Series D · Nov 2025
Between rounds
20.8 years
from the last two

The rounds

  1. Nov 2025
  2. Jan 2005
    Venture$5.0M1 new

    From a historical funding record

Funding filed with regulators

Synchron filed 2 raises, $105M in all. Filings say how much was sold and to how many investors; they never name the investors.

  1. Nov 2022$72M22 investorsequity, optionsof $86M offeredSEC Form D
  2. May 2021$33M14 investorsequityof $39M offeredSEC Form D

Founders and team

From the SEC filings it signed: 1 on the team.

  • Thomas James OxleyExecutive Officer, Directori

On the board, as filediAlex James MorganAri James NowacekMartin James DieckNicholas James OpieRahul James Sharma

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

Double Point VenturesVC firm1round, led 1
Alumni VenturesVC firm1round
Khosla VenturesVC firm1round
In-Q-TelAccelerator1round
Sigma PartnersVC firm1round
K5 GlobalPrivate equity1round
GreenoaksVC firm1round
Protocol LabsCorporate VC1round
Bezos ExpeditionsFamily office1round
National Reconstruction FundGrowth equity1round
METISGrowth equity1round
T.Rx CapitalVC firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 6 firms list Synchron as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

Jumpspace VenturesVC firmPer its own site
ID8 InvestmentsVC firmPer its own site
Kaleida CapitalVC firmPer its own site
Rabil VenturesVC firmPer its own site
Viscogliosi Brothe...VC firmPer its own site
Viscogliosi Brothers Watermark HoldingsFamily officePer its own site

Quick answers about Synchron

Who invested in Synchron?

Synchron's investors include Double Point Ventures, Alumni Ventures, Khosla Ventures, ARCH Venture Partners and In-Q-Tel, and 10 more on record. Double Point Ventures led its latest round.

How much has Synchron raised?

Synchron has raised $310M across 2 rounds since 2005.

When did Synchron last raise?

Synchron's most recent round was a Series D of $305M in Nov 2025, led by Double Point Ventures.

What was Synchron's biggest round?

Its most recent round, $305M in Nov 2025, is also its largest on record.

Who backed Synchron first?

Synchron's first round on record, in Jan 2005, was backed by Sigma Partners.

What stage is Synchron at?

Synchron's latest named round is a Series D, in Nov 2025.

Where is Synchron based?

Synchron is based in the United States.

Who led Synchron's rounds?

Double Point Ventures led the Series D in 2025.

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