Number of Founded Organizations 4
CB Rank (Investor) 52,460
  • Investor Type  Investment Partner

Brett is the founder of Sonar and also helps AppFund, a NYC-based, seed stage incubator build game-changing mobile technology companies.

Prior to AppFund, he co-built an automated social media monitoring platform for SMBs after he spent a year researching resource allocation in early stage start-ups as a Fulbright Fellow in Milano, Italia.

Before that, he worked at an IPTV startup as an internet marketing associate and at an investment bank as an equity research associate.

Number of Partner Investments 5
Announced Date  
Organization Name  
Investor Name  
Lead Investor  
Funding Round  
Money Raised  
Mar 1, 2023
Slate
Charge Ventures
Yes
Seed Round - Slate
$5.5M
Aug 25, 2020
Minerva
Charge Ventures
Yes
Seed Round - Minerva
$1.1M
May 18, 2020
Stream Club
Charge Ventures
Pre Seed Round - Stream Club
$2.1M
Sep 15, 2017
Electric
Charge Ventures
Venture Round - Electric
$1M
Nov 17, 2016
Electric
Charge Ventures
Seed Round - Electric
$2M
Number of Current Jobs 3
Number of Past Jobs 2
Brett Martin has 3 current jobs including Co- founder at Charge Ventures, Co-Founder at Kumospace, and CEO at CastleBranch. Additionally, Brett Martin has had 2 past jobs including Founder and CEO at Sonar.
Organization Name  
Title At Company  
Start Date  
End Date  
Sonar
Founder and CEO2010
AppFund
Director
Number of Events 1
Brett Martin has participated in 1 event, CoInvent NY Startup Summit 2014 on Dec 16, 2014.