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About Sigma Partners

Sigma Partners is a venture capital firm founded in 1984. It is primarily based out of Danville, United States. As of Feb 2022, Sigma Partners has invested in 123 companies. It primarily invests in Series B round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to High Tech and Enterprise Infrastructure. Most recently it led the $43.5M Series E round of Welltok along with Okapi Venture Capital. This round also saw participation from InterWest Partners and other investors.
Overall, Sigma Partners portfolio has seen 2 unicorns, 7 IPOs and 80 acquisitions including key companies like Upwork, DocuSign and Strava. A lot of funds co-invest with Sigma Partners, with names like Globespan Capital Partners sharing a substantial percentage of its portfolio.
Sigma Partners has team of 9 people including 7 partners.
Key Metrics
Team Members
, &
Portfolio Count
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Series A, Series B &
Portfolio IPOs
Portfolio Acquisitions
Portfolio Unicorns
Portfolio Soonicorns
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Sigma Partners' Investments by Stage

Sigma Partners has made 44 investments in Series A stage with an average round size of $7.93M, 41 investments in Series B stage with an average round size of $13.2M and 11 investments in Series C stage with an average round size of $14.4M.
Here are Sigma Partners' investments by stage:
Note: We have considered here, only first round of investments
Breakdown of Sigma Partners' investments by stage of entrySeries A (44)Series B (41)
Stage of entry
No. of Investments
Series A
44
Series B
41
Series C
11
Series E
4
Seed
3
Others
4

Sigma Partners' Investments by Sector

Sigma Partners has a diverse portfolio, with companies operating in the Enterprise Applications, Enterprise Infrastructure, High Tech, Artificial Intelligence - Industry Applications and FinTech. Notably, it has invested in 99 Enterprise (B2B) companies, 90 Tech companies, 36 Software companies and at least 35 companies focusing on Saas.
Here are Sigma Partners' investments by sector:
Note: We have considered here, only first round of investments
Breakdown of Sigma Partners' investments by sectorsEnterprise Applic... (45)Enterprise Infras... (27)
Sector
No. of Investments
Enterprise Applications
45
Enterprise Infrastructure
27
High Tech
23
Artificial Intelligence - Industry Applications
10
FinTech
9
Others
97

Sigma Partners' Investments by Geography

Sigma Partners has made most investments in United States (98), followed by Canada where it has made 3 investments.
Here are Sigma Partners' investments by geography:
Note: We have considered here, only first round of investments
Breakdown of Sigma Partners' investments by countriesUnited States (98)Canada (3)
Country
No. of Investments
United States
98
Canada
3
Chile
1
France
1
India
1
Others
2

Sigma Partners' recent investments

Sigma Partners has not made any investment in 2025 so far.
Here are the most recent investments by Sigma Partners:
Date
Company
Location
Round Details
Round Amount
Co-Investors
Feb 25, 2022
United States
Series C
$18.5M
Aug 28, 2019
United States
Series C
$26.3M
Aug 18, 2017
United States
Series E
$36M
Mar 31, 2017
United States
Series G
$65M
Dec 12, 2016
United States
Series E
$17.7M
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Unicorns in Sigma Partners' Portfolio

Sigma Partners has 2 unicorns in its portfolio - Nasuni and Strava.ÌýThe most recent unicorn in their portfolio is Nasuni. It became a unicorn in 2024, 14 years after Sigma Partners first invested in it.
Here is a list of unicorns in Sigma Partners' portfolio:
ÃØÃÜÑо¿Ëù Score
Company
Short Description
Founded year
Sector
Location
Company Stage
First Investment/ Acquisition Details
62
Cloud based enterprise file system storage provider
2009
Natick
Series F
eabknsy
80
Subscription-based social networking platform for runners and cyclists
2009
San Francisco
Series F
updjrfc

IPOs and Publicly Listed companies in Sigma Partners' Portfolio

7 of Sigma Partners' portfolio companies have become public.ÌýNextracker got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in Feb 2023 at marketcap of $925MÌýand View got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ).
Here are Sigma Partners' portfolio companies that went public:
Company
IPO Date
First Invested on
First Round of Investment
Round Size
Feb 09, 2023
Dec 17, 2014
Series B
$25M
Oct 20, 2020
Feb 18, 2009
Conventional Debt
$4M
Oct 03, 2018
Apr 25, 2006
Series A
$6M
Apr 27, 2018
Apr 04, 2006
Series B
$10M
Oct 07, 2016
Jun 2008
Series A
$32.5M

Acquired companies in Sigma Partners' Portfolio

80 companies from Sigma Partners' portfolio have been acquired.ÌýThe most recent acquisition were Rave Mobile Safety in Dec 2022Ìýby Motorola Solutions.
Here are Sigma Partners' portfolio companies that got acquired most recently:
Company
Acquisition Date
First Invested on
First Round of Investment
Round Size
Dec 14, 2022
Aug 25, 2005
Series A
$5M
Nov 10, 2021
Oct 05, 2016
Series E
$43.5M
Feb 02, 2021
Nov 11, 2007
Series B
$7.5M
Jan 28, 2021
Apr 18, 2007
Series C
$15M
Sep 10, 2020
Apr 29, 2004
Series D
$20M

Team profile of Sigma Partners

Sigma Partners has a team of 9 membersÌýincluding 7 PartnersÌýlocated in United States and Switzerland. Sigma Partners' team does not sit on the board of any company as of now.
Here is a list of all team members in Sigma Partners:
Name
Designation
Location
Board Memberships
Contact details
Partner
Zurich
-
Partner
Boston
-
Partner
Boston
-
Partner
Jackson
-
Partner
San Francisco
-
Partner
San Francisco
-
Partner
Boston
-
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Co-investors of Sigma Partners

Over the past 28 years, 450 investors have co-invested in Sigma Partners's portfolio companies.

  • Invested before Sigma Partners:ÌýSigma Prime Ventures, HWVP and 58 others have invested in rounds before Sigma Partners. There are 4 companies where Sigma Prime Ventures has invested before Sigma Partners and 3 companies where HWVP has invested before Sigma Partners.
  • Top Co-investors of Sigma Partners:Ìý133 investors entered a company along with Sigma Partners. These include investors like Globespan Capital Partners (9 companies).
  • Invested after Sigma Partners:ÌýA total of 257 investors have invested in Sigma Partners's portfolio after their investments. Top Investors include Split Rock Partners (5 companies), Adams Street Partners (5 companies) and Globespan Capital Partners (5 companies).
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Recent News related to Sigma Partners

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VentureBeat•Oct 15, 2016•, Samsung Venture Investment, Sigma Partners, and 1 other
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DocuSign•Dec 10, 2015•DocuSign, Accel, Comcast Ventures, Sapphire Ventures and 7 others
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