Return Path
New York, US · Founded 2018 · Delaware corporation · 7 known investors
Return Path (now part of Validity) offers email deliverability tools that provide real-time inbox placement testing, sender reputation and authentication monitoring, blocklist alerts, and pre-send deliverability checks. It serves email marketers, providing insight into where campaigns land across mailbox providers via the Validity Intelligence Network.
Founders & leadership
Return Path was founded in 2018 by Matthew Y. Blumberg.
MY
Matthew Y. BlumbergFounder
GB
George BilbreyCo-Founder & Presidentuntil 2019
SW
SCOTT WEISSBoard Director (Andreessen Horowitz)until 2019
AA
Anita AbseyChief Revenue Officeruntil 2019
JT
JOHN T. SINCLAIRChief Financial Officerformer
LT
Lisa T. MogensenNamed on SEC filingformer
Board
FW

Fred Wilsonin𝕏Board Director (Union Square Ventures)until 2019Co-founder & Partner at Union Square Ventures
BF
Brad FeldBoard Director (Foundry Group)until 2019
PS
Patrick SeversonBoard Director (Sapphire Ventures)until 2019
GS

SP
Scott PetryIndependent Board Directoruntil 2019
JE
Jeffrey EpsteinIndependent Board Directoruntil 2019
Investors · 7
Gen CapitalChicagovia J Cheng · inferred
Sapphire VenturesMenlo Park · $5M – $20M
Union Square Ventures (USV)New York City · $1M – $8Mvia Fred Wilson · board
Costanoa Venture CapitalreportedPalo Alto
Costanoa VenturesreportedSan Francisco · $500K – $8Mvia Greg Sands · board
FoundryreportedBoulder · $250K – $15M
Vista Equity PartnersreportedNew York
Reported raises · per SEC filings
Form D private placements$41M disclosed across 4 rounds · 2011–2016
▶$261.8KraisedDec 2016 · 14 investors · OtherRule 506(b)
▶$261.8KraisedDec 2016 · 14 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Fred WilsonDirector
- Brad FeldDirector
- Patrick SeversonDirector
- Scott PetryDirector
- Jennifer WalshExecutive Officer
- George BilbreyExecutive Officer
- Jeffrey EpsteinDirector
- Matthew Y. BlumbergExecutive Officer, Director
- Greg SandsDirector
- Offering amount
- $261.8K
- Amount sold
- $261.8K
- First sale
- Nov 2016
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$34.1MraisedDec 2014 · 8 investors · OtherRule 506(b)
▶$34.1MraisedDec 2014 · 8 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Scott PetryDirector
- George BilbreyExecutive Officer
- Lisa T. MogensenExecutive Officer
- Fred WilsonDirector
- Greg SandsDirector
- Matthew Y. BlumbergExecutive Officer, Director
- Jeffrey EpsteinDirector
- Brad FeldDirector
- Patrick SeversonDirector
- Anita AbseyExecutive Officer
- Offering amount
- $34.1M
- Amount sold
- $34.1M
- First sale
- Nov 2014
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$5MraisedJul 2014 · 4 investors · OtherRule 506(b)
▶$5MraisedJul 2014 · 4 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Matthew Y. BlumbergExecutive Officer, Director
- Fred WilsonDirector
- Anita AbseyExecutive Officer
- George BilbreyExecutive Officer
- Brad FeldDirector
- Jeffrey EpsteinDirector
- Lisa T. MogensenExecutive Officer
- Scott PetryDirector
- Greg SandsDirector
- Offering amount
- $5M
- Amount sold
- $5M
- First sale
- Jun 2014
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.6MraisedJan 2012 · 18 investors · OtherRule 506(b)
▶$1.6MraisedJan 2012 · 18 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- FRED WILSONDirector
- SCOTT WEISSDirector
- MATTHEW Y. BLUMBERGExecutive Officer, Director
- ANITA ABSEYExecutive Officer
- GREG SANDSDirector
- SCOTT PETRYDirector
- GEORGE BILBREYExecutive Officer
- JOHN T. SINCLAIRExecutive Officer
- Offering amount
- $5.2M
- Amount sold
- $1.6M
- First sale
- Dec 2011
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 4
by search overlapMailmodo9 shared keywordsMailmodo is a platform that uses AI to help marketers plan, create, and automate email campaigns with interactive elements like forms and polls directly in emails. The service targets email marketers and enables higher engagement and conversion rates through interactive email experiences and AI-powered campaign automation.
Mailjet8 shared keywordsMailjet is an email platform providing a drag-and-drop marketing email editor, audience segmentation and automation, and a RESTful Email API and SMTP relay for transactional and marketing email at scale. It serves marketing and development teams with deliverability monitoring, integrations, and GDPR-compliant, EU-based infrastructure.
Twilio8 shared keywordsTwilio provides a cloud-based communications platform that enables businesses to integrate voice, messaging, and video into applications using APIs. The platform combines communication channels, contextual data, and AI orchestration for enterprises and developers building customer experiences.
Mailgun ,8 shared keywordsMailgun provides an email API platform for developers to send, track, test, parse, and validate transactional and marketing emails at scale. It offers email deliverability, validation, and quality assurance tools aimed at businesses running high-volume email programs.
Companies competing with Return Path for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Return Path do?
- Return Path (now part of Validity) offers email deliverability tools that provide real-time inbox placement testing, sender reputation and authentication monitoring, blocklist alerts, and pre-send deliverability checks. It serves email marketers, providing insight into where campaigns land across mailbox providers via the Validity Intelligence Network.
- Who founded Return Path?
- Return Path was founded by Matthew Y. Blumberg in 2018.
- Who are Return Path's investors?
- Return Path's investors include Gen Capital, Sapphire Ventures, Union Square Ventures (USV), Costanoa Venture Capital, Costanoa Ventures, Foundry, Vista Equity Partners.
- How much funding has Return Path raised?
- Return Path has disclosed $41M raised across 4 rounds.
- Where is Return Path headquartered?
- Return Path is headquartered in New York, US.

