Number of Portfolio Companies 15
Number of Exits 
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  • Primary Job Title Part Time Partner
  • Primary Organization 
    Heavybit
  • Investor Type  Investment Partner, Individual/Angel
  • Investor Stage  Seed
  • Number of Exits 

James is a hacker and serial entrepreneur with a background in product development, user experience design, platform marketing, and cloud technology. He is one of the founders of Heroku, an advanced platform for application development and deployment. James is known as an "OCD perfectionist", and is chiefly responsible for the look and

feel of Heroku’s brand and products. Following Heroku's acquisition by salesforce.com, James founded Heavybit, a San Francisco-based community and program for developer-focused businesses.

He speaks regularly about cloud technology, entrepreneurship, and design, and is an advisor to and investor in many technology companies.

Number of Investments 16
James Lindenbaum has made 16 investments. Their latest investment was Seed Round - Appwrite on Sep 28, 2021, when Appwrite raised
$10M
.
Announced Date  
Organization Name  
Lead Investor  
Funding Round  
Money Raised  
Sep 28, 2021
Appwrite
Seed Round - Appwrite
$10M
Aug 18, 2021
MobileCoin
Series B - MobileCoin
$66M
Mar 4, 2021
Doppler
Venture Round - Doppler
$6.5M
Jul 23, 2019
Freedom Robotics
Seed Round - Freedom Robotics
$6.6M
Aug 31, 2016
Mux
No
Seed Round - Mux
$2.8M
Aug 24, 2016
SkyGiraffe
No
Series A - SkyGiraffe
$6M
Feb 25, 2016
Revl
No
Seed Round - Revl
$3.5M
Jan 14, 2015
Revl
Angel Round - Revl
$150K
Aug 20, 2014
Orion Labs
Series A - Orion Labs
$6.3M
Sep 17, 2013
Apiary
Seed Round - Apiary
$1.6M
Number of Partner Investments 3
Announced Date  
Organization Name  
Investor Name  
Lead Investor  
Funding Round  
Money Raised  
Jun 8, 2021
Blockdaemon
Heavybit
Series A - Blockdaemon
$28M
May 12, 2020
Blockdaemon
Heavybit
Venture Round - Blockdaemon
$5.5M
Apr 11, 2018
Blockdaemon
Heavybit
No
Seed Round - Blockdaemon
$380K
Number of Exits 
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James Lindenbaum has exits. Their most notable exits are ZencoderSkyGiraffe, and Pusher.
  • Zencoder Zencoder is web-based video encoding SaaS, designed to convert any video into web and mobile-compatible formats in real-time.
  • SkyGiraffe SkyGiraffe is an enterprise mobility platform that mobilizes back-end data, enabling employees to manage business processes on any device.
  • Pusher Pusher Ltd. provides a hosted API service for adding real-time bi-directional.
  • Orion Labs Orion Labs is a voice-first enterprise communication platform connecting frontline workers and teams and with AI-driven automation.
  • Message Bus Message Bus provides cloud-based email infrastructure.
  • Apiary Apiary provides tools that help companies build, test, monitor, and document web APIs.
Number of Current Jobs 1
Number of Past Jobs 2
James Lindenbaum is the Part Time Partner at Heavybit. Additionally, James Lindenbaum has had 2 past jobs including Founder/CEO at Heroku.
Organization Name  
Title At Company  
Start Date  
End Date  
Heroku
Founder/CEO
Heroku
Team Member
Number of Current Board & Advisor Roles 4
James Lindenbaum holds 4 board and advisor roles including SaaS Advisor at Revl, Founder, Heroku and Heavybit at Gradle Inc., and Advisor at Apiary.
Number of News Articles 53
Funding RoundSep 28, 2021
Appwrite raised $10,000,000 / Seed from Aaron Applbaum and 6 other investors
Funding RoundAug 18, 2021
MobileCoin raised $66,000,000 / Series B from 10X Capital and 27 other investors
Funding RoundMar 4, 2021
Doppler raised $6,500,000 / Series Unknown from BoxGroup and 10 other investors
Funding RoundJul 23, 2019
Freedom Robotics raised $6,600,000 / Seed from Arianna Simpson and 10 other investors
NewsMar 7, 2018
Venture Capital News — Snyk Secures $7M in Series A Round
NewsAug 31, 2016
Funding RoundAug 31, 2016
Mux raised $2,800,000 / Seed from 7percent Ventures and 17 other investors
Funding RoundAug 24, 2016
SkyGiraffe raised $6,000,000 / Series A from Group 11 and 5 other investors