# Synchron funding: rounds and investors

> Synchron has raised $310M across 2 rounds since 2005. Investors include Double Point Ventures, Alumni Ventures and Khosla Ventures. Every round with its source.

Source: https://millionrounds.com/company/synchron (Millionrounds; every figure on the page links to its filing or article)

United States · [Series D startup](https://millionrounds.com/companies)

# 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

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Funding summary Updated 5 Nov 2026

**$310M** raised across 2 rounds since 2005, from 4 sources

**$5.0M** Venture **$305M** Series D

- **Latest round:** Series D, $305M Nov 2025
- **Led by:** Double Point Ventures
- **Step-up i:** 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.

2005 2008 2011 2014 2017 2020 2023

**$5.0M** Venture

**$305M** Series D

- **First round:** Venture, $5.0M
- **Biggest round:** $305M
- **Between rounds:** 20.8 years

## The rounds

- **Nov 2025** Series D **$305M** *14 new* [Double Point Ventures](https://millionrounds.com/fund/double-point-ventures) Lead [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [In-Q-Tel](https://millionrounds.com/fund/iqt) [K5 Global](https://millionrounds.com/fund/k5-global) [Greenoaks](https://millionrounds.com/fund/greenoaks) [Protocol Labs](https://millionrounds.com/fund/protocol-labs) [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) [National Reconstruction Fund](https://millionrounds.com/fund/national-reconstruction-fund) [Investment Corporation of Dubai](https://millionrounds.com/fund/investment-corporation-of-dubai) [METIS](https://millionrounds.com/fund/metis) [NeuroTechnology Investors (NTI)](https://millionrounds.com/fund/neurotechnology-investors-nti) [T.Rx Capital](https://millionrounds.com/fund/t-rx-capital) Reported by Startup Daily and 2 others SEC filing: $1.0M sold, first sale Aug 2025
- **Jan 2005** Venture **$5.0M** *1 new* [Sigma Partners](https://millionrounds.com/fund/sigma-partners) 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.

- Nov 2022 **$72M** 22 investors equity, options of $86M offered SEC Form D
- May 2021 **$33M** 14 investors equity of $39M offered SEC Form D

## Founders and team

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

- **Thomas James Oxley** Executive Officer, Director i

On the board, as filed i *Alex James Morgan* *Ari James Nowacek* *Martin James Dieck* *Nicholas James Opie* *Rahul 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.

**Venture** 2005 **Series D** 2025 [Double Point Ventures](https://millionrounds.com/fund/double-point-ventures) L [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [In-Q-Tel](https://millionrounds.com/fund/iqt) [Sigma Partners](https://millionrounds.com/fund/sigma-partners) [K5 Global](https://millionrounds.com/fund/k5-global) [Greenoaks](https://millionrounds.com/fund/greenoaks) [Protocol Labs](https://millionrounds.com/fund/protocol-labs) [Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions)

## Everyone who backed them

[Double Point Ventures](https://millionrounds.com/fund/double-point-ventures) VC firm **1** round, led 1

[Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round

[Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) VC firm **1** round

[ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **1** round

[In-Q-Tel](https://millionrounds.com/fund/iqt) Accelerator **1** round

[Sigma Partners](https://millionrounds.com/fund/sigma-partners) VC firm **1** round

[K5 Global](https://millionrounds.com/fund/k5-global) Private equity **1** round

[Greenoaks](https://millionrounds.com/fund/greenoaks) VC firm **1** round

[Protocol Labs](https://millionrounds.com/fund/protocol-labs) Corporate VC **1** round

[Bezos Expeditions](https://millionrounds.com/fund/bezos-expeditions) Family office **1** round

[National Reconstruction Fund](https://millionrounds.com/fund/national-reconstruction-fund) Growth equity **1** round

[Investment Corporation of Dubai](https://millionrounds.com/fund/investment-corporation-of-dubai) Advisor **1** round

[METIS](https://millionrounds.com/fund/metis) Growth equity **1** round

[NeuroTechnology Investors (NTI)](https://millionrounds.com/fund/neurotechnology-investors-nti) VC firm **1** round

[T.Rx Capital](https://millionrounds.com/fund/t-rx-capital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=synchron).

## 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 Ventures](https://millionrounds.com/fund/jumpspace-ventures) VC firm Per its own site

[ID8 Investments](https://millionrounds.com/fund/id8-investments) VC firm Per its own site

[Kaleida Capital](https://millionrounds.com/fund/kaleida-capital) VC firm Per its own site

[Rabil Ventures](https://millionrounds.com/fund/rabil-ventures) VC firm Per its own site

[Viscogliosi Brothe...](https://millionrounds.com/fund/viscogliosi-brothe) VC firm Per its own site

[Viscogliosi Brothers Watermark Holdings](https://millionrounds.com/fund/viscogliosi-brothers-watermark-holdings) Family office Per 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.

## Companies like Synchron

In the same sector, and raised in the last eighteen months.

[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**GT Metabolic Solutions** $17M · Oct 2026](https://millionrounds.com/company/gt-metabolic-solutions)[**Urologic Design** $1.2M · Oct 2026](https://millionrounds.com/company/urologic-design)[**Parasol** $4.8M · Oct 2026](https://millionrounds.com/company/parasol)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Stride** $16M · Oct 2026](https://millionrounds.com/company/stride)

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