Jeff Pulver

A pioneer in VoIP, serial entrepreneur, and angel investor with significant involvement in the Israeli startup ecosystem.

Angel Investor Active New York City, United States Est. 1994
Last updated 2026-07-20
Portfolio
4
in our dataset
Rounds participated
4
Rounds led
0
Rounds' value
$2.6M
total disclosed, rounds participated
Stages
—

About

Jeff Pulver is an American internet entrepreneur and futurist, best known for his foundational work in Voice over Internet Protocol (VoIP). He co-founded Vonage and has established numerous other companies. Pulver is a prolific angel investor, having backed over 400 startups globally, with a strong focus on and deep ties to the Israeli tech community, where he has invested in over 100 companies. He is also recognized for launching Zula, an Israeli-based business communication software company. Pulver is a vocal advocate for internet freedom and has organized numerous technology conferences worldwide.

Portfolio · 4

Sonarax
Ultrasonic Connectivity and Communication Platform
1 round $1.2M committed Latest: 2014-01
JamStar
Guitar Teaching Application
1 round $800K committed Latest: 2013-01
CupCare
Disposable Bra Liner
1 round Latest: 2012-12
Stevie
Turning the Social Web into Beautiful TV
1 round $600K committed Latest: 2011-10

Investment activity

1 portfolio exit on record.

Portfolio by sector

Media & Entertainment Technologies2
Business Software1
Undisclosed1
Industrial Technologies1
Health Tech & Life Sciences1

Q&A

What is Jeff Pulver's most recent notable exit?
Jeff Pulver had a notable exit in April 2021 when portfolio company Klear (formerly Twtrland), an influencer marketing platform, was acquired by Meltwater for $17.8M.
Which sectors does Jeff Pulver primarily invest in?
Jeff Pulver has shown a concentration in Media & Entertainment Technologies, with two portfolio companies in this sector. Other investments include Business Software, Industrial Technologies, and Health Tech & Life Sciences.
Can you name some of Jeff Pulver's portfolio companies?
Jeff Pulver's portfolio includes companies such as Klear, an influencer marketing platform that was acquired, and Sonarax, an ultrasonic connectivity and communication platform.
What is the typical funding stage for Jeff Pulver's investments?
According to startupim data, Jeff Pulver primarily invests in Seed-stage companies, with 5 out of 6 recorded investments at this stage.
When did Jeff Pulver make his most recent recorded investment?
Jeff Pulver's most recent recorded investment was in January 2014.
What kind of business models do Jeff Pulver's portfolio companies typically have?
Jeff Pulver's portfolio includes companies with both B2C and B2B business models, such as Klear and ZCast which serve both, and Sonarax which is B2B.
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

Identifiers & details

Founded1994-12