Private company

SendGrid

Logo: sendgrid.com4

American email delivery service

Twilio SendGrid, commonly known as SendGrid, is an American communication platform for transactional and marketing email based in Denver, Colorado.3 From Wikipedia, CC BY-SA 4.0

Last updated Oct 16, 2026.

Overview

2009Founded1
  • Industrysoftware development1
  • HeadquartersBoulder1
  • Websitesendgrid.com
  • Incorporated inDE5
  • Business address1801 California Street, Suite 500, Denver, Co 802025
  • Filer categoryNon-accelerated filer, Emerging growth company5
SendGridDenver
Photo: Raysonho @ Open Grid Scheduler / Scalable Grid Engine, CC0, via Wikimedia Commons6

Twilio SendGrid, commonly known as SendGrid, is an American communication platform for transactional and marketing email based in Denver, Colorado.3

How it started

History

SendGrid was founded in 2009 by Isaac Saldana, Jose Lopez, and Tim Jenkins. Later, it was incubated through the Techstars accelerator program. By December 2009, the company announced it had raised $750,000 in a funding round led by Highway 12 Ventures. Other participating investors included SoftTech VC, FF Angel, and TechStars founder David Cohen.

In April 2010, the email software-as-a-service (SaaS) company received $5 million in Series A round funding from Foundry Group, SoftTech VC, and Highway 12 Ventures, as well as individual investors including David Cohen, Scott Petry, Dave McClure, and Matt Mullenweg. Ryan McIntyre, the co-founder of Foundry, joined SendGrid's board of directors at this time as well.

In January 2012, SendGrid raised $21 million in Series B funding, led by Bessemer Venture Partners. In August 2012, SendGrid opened an office in Denver. In December 2012, SendGrid partnered with Twilio to incorporate SMS and push notification services to its platform.

In March 2013, the controversial firing of Adria Richards and the surrounding circumstances became known as Donglegate. In June 2013, SendGrid released its new email marketing service.

In September 2014, former Citrix executive Sameer Dholakia joined SendGrid as the CEO. In December 2014, SendGrid raised $20 million in Series C funding. The series C round was led by a new investor Bain Capital Ventures. Current investors Bessemer Venture Partners and Foundry Group also participated.

From Wikipedia’s article on SendGrid, shared under CC BY-SA 4.0.3

Timeline

  1. 2009Founded Founded1

Sources

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    Company websiteSendGrid logo
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