SendGrid

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SendGrid
Company type
Subsidiary
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Headquarters
Denver, Colorado
,
United States
Key people
Sameer Dholakia (CEO)
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Number of employees
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ParentTwilio
Websitesendgrid.com

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Twilio SendGrid, commonly known as SendGrid, is an American communication platform for transactional and marketing email based in Denver, Colorado.[2]

History

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SendGrid was founded in 2009 by Isaac Saldana, Jose Lopez, and Tim Jenkins.[4][5] Later, it was incubated through the Techstars accelerator program.[6][7] By December 2009, the company announced it had raised $750,000 in a funding round led by Highway 12 Ventures.[8] Other participating investors included SoftTech VC, FF Angel, and TechStars founder David Cohen.[8]

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.[9][10] Ryan McIntyre, the co-founder of Foundry, joined SendGrid's board of directors at this time as well.[9]

In January 2012, SendGrid raised $21 million in Series B funding, led by Bessemer Venture Partners.[11][12][13] In August 2012, SendGrid opened an office in Denver.[14][15] In December 2012, SendGrid partnered with Twilio to incorporate SMS and push notification services to its platform.[16][17]

In March 2013, the controversial firing of Adria Richards and the surrounding circumstances became known as Donglegate.[18][19][20] In June 2013, SendGrid released its new email marketing service.[21][22][23]

In September 2014, former Citrix executive Sameer Dholakia joined SendGrid as the CEO.[24] 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.[25]

In November 2016, SendGrid raised $33 million in Series D funding. The round was led by Bain Capital Ventures, with participation from Bessemer Ventures and the Foundry Group.[15]

SendGrid went public with a debut in the New York Stock Exchange on November 16, 2017.[26]

In October 2018, Twilio announced plans to acquire SendGrid for $2 billion.[27] Twilio completed its acquisition of SendGrid on February 1, 2019.[28]

In May 2025, Twilio retired SendGrid's free email API plan and free marketing campaigns plan, requiring customers to transition to paid tiers.[29] During Cyber Week 2025, SendGrid processed 75.1 billion emails, a 14.6% increase over the previous year's record.[30] In February 2026, Twilio announced that the SendGrid.com website would be fully merged into Twilio.com, consolidating the brands after their 2019 acquisition.[31]

Platform

SendGrid provides a cloud-based service that assists businesses with email delivery.[32][33] The service manages various types of email including shipping notifications, friend requests, sign-up confirmations, and email newsletters. It also handles Internet service provider (ISP) monitoring, domain keys, the sender policy framework (SPF), and feedback loops.[8][34] Additionally, the company provides link tracking and open rate reporting.[8] It also allows companies to track email opens, unsubscribes, bounces, and spam reports.[8][9]

SendGrid offered a freemium version and a Lite Plan (pay-as-you-go), as well as three expanded levels of service: Essentials, Pro, and Premier,[35] until it ended its free version in May 2025.[36]

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."SendGrid Company Profile". Craft. Retrieved 27 September 2019.
  2. ^ Page Module:Citation/CS1/styles.css has no content.Leena Rao (March 9, 2011). "SendGrid Sends 7.5 Million Emails, Brings Former Oracle Exec As CEO". TechCrunch. Retrieved August 13, 2013.
  3. ^ https://www.linkedin.com/posts/peterkow_sendgrid-was-rejected-by-ycombinator-yet-activity-6990643884959617024-tiZy
  4. ^ Page Module:Citation/CS1/styles.css has no content.Brad McCarty (May 16, 2013). "Startup Stories: SendGrid shares its passion for fixing email". The Next Web. Retrieved August 13, 2013.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Leena Rao (January 17, 2012). "Bessemer Leads 21m Round In Cloud-Based Email Delivery And Management Service SendGrid". TechCrunch. Retrieved August 13, 2013.
  6. ^ Page Module:Citation/CS1/styles.css has no content."TechStars Incubator Hatches 10 New Companies". TechCrunch. August 6, 2009. Retrieved August 13, 2013.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Dana Oshiro (September 30, 2009). "TechStars Investor Day Hits a Home Run". ReadWrite. Archived from the original on December 9, 2012. Retrieved August 13, 2013.
  8. ^ a b c d e Page Module:Citation/CS1/styles.css has no content.Leena Rao (December 8, 2009). "SendGrid Raises $750K for Email Delivery Software". TechCrunch. Retrieved August 13, 2013.
  9. ^ a b c Page Module:Citation/CS1/styles.css has no content.Evelyn Rusli (April 20, 2010). "SendGrid Raises $5 Million, Sends A Bajillion Emails". TechCrunch. Retrieved August 13, 2013.
  10. ^ Page Module:Citation/CS1/styles.css has no content.Alastair Goldfisher (May 4, 2010). "TechStars startup SendGrid raises $5 million". Reuters. Retrieved August 13, 2013.
  11. ^ Page Module:Citation/CS1/styles.css has no content.Dan Primack (January 18, 2012). "Venture capital deals". CNN Money. Retrieved August 13, 2013.
  12. ^ Page Module:Citation/CS1/styles.css has no content.Alicia Wallace (January 18, 2012). "Boulder startup SendGrid raises $21 million". The Denver Post. Retrieved August 13, 2013.
  13. ^ Page Module:Citation/CS1/styles.css has no content."SendGrid raises $21M in VC; Microsoft to partner". Denver Business Journal. January 17, 2012. Retrieved August 13, 2013.
  14. ^ Page Module:Citation/CS1/styles.css has no content.Greg Avery (August 10, 2012). "Boulder's SendGrid opening Denver office". Denver Business Journal. Retrieved August 13, 2013.
  15. ^ a b Page Module:Citation/CS1/styles.css has no content."Email delivery platform SendGrid raises $33 million ahead of IPO in 2017". VentureBeat. 2016-11-30. Retrieved 2018-08-01.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Sean Ludwig (December 4, 2012). "Cloud tag team: SendGrid and Twilio partner on email, SMS, and voicemail solutions for the enterprise". VentureBeat. Retrieved August 13, 2013.
  17. ^ Page Module:Citation/CS1/styles.css has no content.Harrison Weber (December 4, 2012). "SendGrid and Twilio team up to offer email, SMS, voice and push notifications for the enterprise market". The Next Web. Retrieved August 13, 2013.
  18. ^ Page Module:Citation/CS1/styles.css has no content.Ronson, Jon (21 February 2015). "The Internet Shaming of Lindsey Stone". The Guardian.
  19. ^ Page Module:Citation/CS1/styles.css has no content."Techie Adria Richards fired after tweeting about men's comments". CBS News.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Vuong, Andy (March 25, 2013). "SendGrid employee's tweet sets off firestorm". The Denver Post. Retrieved September 18, 2015.
  21. ^ Page Module:Citation/CS1/styles.css has no content.Sean Ludwig (June 18, 2013). "SendGrid launches email marketing service that undercuts MailChimp & Constant Contact". VentureBeat. Retrieved August 13, 2013.
  22. ^ Page Module:Citation/CS1/styles.css has no content.Barb Darrow (June 18, 2013). "SendGrid picks fight with heavyweight MailChimp in email marketing". Gigaom. Retrieved August 13, 2013.{{cite web}}: CS1 maint: deprecated archival service (link)
  23. ^ Page Module:Citation/CS1/styles.css has no content.Kristina Knight (June 18, 2013). "SendGrid launches email service". BizReport. Retrieved August 13, 2013.
  24. ^ Page Module:Citation/CS1/styles.css has no content.Avery, Greg (September 30, 2014). "SendGrid replaces Franklin as CEO". Denver Business Journal.
  25. ^ Page Module:Citation/CS1/styles.css has no content."SendGrid Caches $20M Series C for Email Technology". Wall Street Journal. 2014-12-02. ISSN 0099-9660. Retrieved 2020-12-21.
  26. ^ Page Module:Citation/CS1/styles.css has no content.Chuang, Tamara (2017-11-12). "As SendGrid preps for public debut, the IPO market appears receptive". The Denver Post. Retrieved 2017-11-13.
  27. ^ Page Module:Citation/CS1/styles.css has no content.Condon, Stephanie (15 October 2018). "Twilio to acquire email API platform SendGrid for $2 billion". ZDNet. Retrieved 8 November 2018.
  28. ^ Page Module:Citation/CS1/styles.css has no content."Twilio Completes Acquisition of SendGrid". www.twilio.com. 1 February 2019. Retrieved 2 June 2020.
  29. ^ Page Module:Citation/CS1/styles.css has no content."Changes coming to SendGrid's Free Plan". Twilio. Retrieved 2026-03-21.
  30. ^ Page Module:Citation/CS1/styles.css has no content."Cyber Week 2025: Setting New Standards for Intelligent Engagement". Twilio. Retrieved 2026-03-21.
  31. ^ Page Module:Citation/CS1/styles.css has no content."Bringing SendGrid and Segment to Twilio.com: A More Unified Web Experience". Twilio. Retrieved 2026-03-21.
  32. ^ Page Module:Citation/CS1/styles.css has no content.Pascal-Emmanuel Gobry (August 2, 2011). "SendGrid Is Sending 2 Billion Emails Per Month And Just Getting Started". Business Insider. Retrieved August 13, 2013.
  33. ^ Page Module:Citation/CS1/styles.css has no content.Ingrid Lunden (June 29, 2012). "Inbox Alert: SendGrid Sends 45B Emails For 60,000 Customers, 20B In 2012 Alone". TechCrunch. Retrieved August 13, 2013.
  34. ^ Page Module:Citation/CS1/styles.css has no content.Julie Bort (March 1, 2012). "All Those Emails From Pinterest Are Very Good For This Guy". Business Insider. Retrieved August 13, 2013.
  35. ^ Page Module:Citation/CS1/styles.css has no content.Rip Empson (May 10, 2011). "Email Delivery System SendGrid Announces New Pricing Model, Now You Can Pay-As-You-Go". TechCrunch. Retrieved August 13, 2013.
  36. ^ Page Module:Citation/CS1/styles.css has no content."Changes coming to SendGrid's Free Plan". Twilio. Retrieved 2025-08-16.

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