Who invested in Santur Corporation

3 rounds we have observed, with the 5 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.

Telecoms

Funding summaryUpdated 26 Oct 2026

$56Mraised across 3 rounds since 2005, from 3 sources

$17MSeries C$27MSeries D$13MSeries E

Latest round: Series E, $13MJul 2009
Biggest round: $27MSeries D · Jul 2007
Investors: 5

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.

2006200720082009

$17MSeries C$27MSeries D$13MSeries E

First round: Series C, $17M
Biggest round: $27M
Usual gap between rounds: 2.2 years

The rounds

Jul 2009
Series E$13M3 returning
Reported by lightreading.com
Jul 2007
Series D$27M5 returning
From a historical funding record
Jun 2005
Series C$17M5 new
From a historical funding record

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.

Series C2005Series D2007Series E2009

Sequoia Capital

Menlo Ventures

VantagePoint Capital PartnersLighthouse Capital PartnersThomas Weisel Venture Partners

The exit

ExitBuyerPriceWhen

AcquiredNeoPhotonicsundisclosedSept 2011

From historical deal records. Wrong? Tell us.

Everyone who backed them

Sequoia CapitalVC firm3rounds

Menlo VenturesVC firm3rounds

VantagePoint Capital PartnersVC firm3rounds

Lighthouse Capital PartnersGrowth equity2rounds

Thomas Weisel Venture PartnersGrowth equity2rounds

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

Quick answers about Santur Corporation

Who invested in Santur Corporation?

Santur Corporation's investors include Sequoia Capital, Menlo Ventures, VantagePoint Capital Partners, Lighthouse Capital Partners and Thomas Weisel Venture Partners.

How much has Santur Corporation raised?

Santur Corporation has raised $56M across 3 rounds since 2005.

When did Santur Corporation last raise?

Santur Corporation's most recent round was a Series E of $13M in Jul 2009.

What was Santur Corporation's biggest round?

Santur Corporation's largest round on record is $27M (Series D), in Jul 2007.

Who backed Santur Corporation first?

Santur Corporation's first round on record, in Jun 2005, was backed by Sequoia Capital, Menlo Ventures and VantagePoint Capital Partners and 2 others.