Who founded Thirty Madison?

Thirty Madison was founded by Demetrius Michael Karagas, Steven Gutentag in 2016.

Who are Thirty Madison's investors?

Thirty Madison's investors include Alpha Partners, Alumni Ventures, Comcast Ventures, Connetic Ventures, CVS Health Ventures, Evolution VC Partners, First Round Capital, Foreground Capital and 18 more.

How much funding has Thirty Madison raised?

Thirty Madison has disclosed $255.7M raised across 3 of its 6 known rounds.

Where is Thirty Madison headquartered?

Thirty Madison is headquartered in Astoria, US.

Thirty Madison

Astoria, US · Founded 2016 · Delaware corporation · 26 known investors

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Founders & leadership

Thirty Madison was founded in 2016 by Demetrius Michael Karagas and Steven Gutentag.

Demetrius Michael KaragasCo-founder

Steven GutentagCo-Founder2017–2025

Demetri KaragasFounder

Board

Rebecca Kaden Board directorGeneral Partner at Union Square Ventures (USV)

Investors · 26

Alpha Partnerslisted by Alpha PartnersNew York · $3M – $10M

Alumni Ventureslisted by Alumni VenturesManchester · $100K – $10M

How we know: av.vc · Not right? Tell us

Comcast Ventureslisted by Comcast VenturesNew York · $2M – $15M

How we know: Comcast Ventures's portfolio page · the VCSheet dataset · Not right? Tell us

Connetic Ventureslisted by Connetic VenturesCovington · $250K – $500K

How we know: Connetic Ventures's portfolio page · Not right? Tell us

CVS Health Ventureslisted by CVS Health VenturesWoonsocket

How we know: CVS Health Ventures's portfolio page · Not right? Tell us

Evolution VC Partnerslisted by Evolution VC PartnersNew York

How we know: Evolution VC Partners's portfolio page · Not right? Tell us

First Round Capitallisted by First Round CapitalSan Francisco · $100K – $20M

How we know: firstround.com · Not right? Tell us

Foreground Capitallisted by Foreground CapitalBoston

How we know: Foreground Capital's portfolio page · Not right? Tell us

Four Citieslisted by Four CitiesNewton

How we know: Four Cities's portfolio page · Not right? Tell us

Gaingelslisted by GaingelsNew York · $200K – $500K

How we know: gaingels.com · Not right? Tell us

Greycroftlisted by GreycroftNew York · $100K – $5M

How we know: Greycroft's portfolio page · funding news · press coverage · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

HealthQuest Capitallisted by HealthQuest CapitalRedwood City

How we know: HealthQuest Capital's portfolio page · a partner's Signal profile · funding news · press coverage · open dataset · 5k.vc investor directory · Not right? Tell us

Imaginary Venture Capitallisted by Imaginary Venture CapitalNew York · $1M – $10M

How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Maveronlisted by MaveronSeattle · $100K – $8Mvia Jason Stoffer · board

How we know: Maveron's portfolio page · board seat on SEC Form D · funding news · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Nordstarlisted by NordstarLondon

Northzonelisted by NorthzoneLondon · $1M – $50M

How we know: Northzone's portfolio page · funding news · press coverage · Not right? Tell us

Remarkable Ventureslisted by Remarkable VenturesNew York

How we know: Remarkable Ventures's portfolio page · Not right? Tell us

RH Capitallisted by RH Capital

How we know: RH Capital's portfolio page · Not right? Tell us

Rosecliff Ventureslisted by Rosecliff VenturesNew York City · $500K

How we know: Rosecliff Ventures's portfolio page · the VCSheet dataset · Not right? Tell us

Sand Hill Angelslisted by Sand Hill AngelsMenlo Park · $50K – $2M

Wittington Ventureslisted by Wittington VenturesToronto

Bracket CapitalreportedLos Angeles

How we know: funding news · press coverage · Not right? Tell us

Entrepreneurs Roundtable Accelerator (ERA)reportedNew York · $100K – $2M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Johnson & Johnson Innovation – JJDCreportedNew Brunswick

How we know: funding news · prnewswire.com · Not right? Tell us

Polaris PartnersreportedBoston · $500K – $5M

How we know: a partner's Signal profile · Not right? Tell us

Union Square Ventures (USV)inferredNew York · $1M – $8Mvia Rebecca Kaden · board

How we know: board seat on SEC Form D · Not right? Tell us

Funding

SEC filings, press & company announcements

$255.7M disclosed across 3 of 6 rounds · 2017–2022

Undisclosed amountSeries BAug 2020
Johnson & Johnson Innovation - JJDC, Inc., Polaris Partners
Source ↗
Undisclosed amountSeries AOct 2018
Source ↗

▶$112MraisedMar 2022 · 83 investors · Other Health Care

Rule 506(b)

Officers, directors & promoters on the filing

Randy ScottDirector
Regina BenjaminDirector
Demetrius Michael KaragasDirector
Jason StofferDirector
Amy SchulmanDirector
Andrew WeissmanDirector
Steven Craig GutentagExecutive Officer, Director

Offering amount: $112M
Amount sold: $112M
First sale: Mar 2022
Incorporated: Corporation, Delaware
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

▶$141MraisedJun 2021 · 26 investors · Other Health Care

Rule 506(b)

Officers, directors & promoters on the filing

Steven Craig GutentagExecutive Officer, Director
Amy SchulmanDirector
Stoffer JasonDirector
Randy ScottDirector
Demetrius Michael KaragasDirector

Offering amount: $141M
Amount sold: $141M
First sale: May 2021
Incorporated: Corporation, Delaware
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

▶$2.7MraisedMay 2017 · 16 investors · Other Technology

Rule 506(b)

Officers, directors & promoters on the filing

Demetrius Michael KaragasExecutive Officer, Director
Steven Craig GutentagExecutive Officer, Director
Rebecca KadenDirector

Offering amount: $2.8M
Amount sold: $2.7M
First sale: May 2017
Incorporated: Corporation, Delaware, 2016
Federal exemptions: 06b

Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Related companies · 4

Carbon HealthCarbon Health operates a chain of clinics offering urgent care, primary care, and chronic condition management, combining technology with in-person care to provide broader access to health services. It serves patients seeking everyday healthcare across acute, primary, and chronic needs.

NURXNurx provides accessible and affordable medications and tests through a digital health platform designed for everyone.

NorthzoneNorthzone is a multi-stage venture capital firm founded in 1996, investing from seed to growth across Europe and the US.

SacraSacra provides research and data on private companies for investors, covering valuations, business models, and secondary-market trading. Its analyst coverage includes company-specific reports and financial models aimed at hedge funds, private-market investors, and secondary traders.

Companies working in the same space as Thirty Madison.

Legal entities · 1

corporate structure

Thirty MadisonDelaware

In the news

Thirty Madison Raises $140 Million in Series C Financing Led by HealthQuest Capitalprnewswire.com · Jun 2021

Thirty Madison Raises $47M in Series B Financing From Polaris Partners, Johnson & Johnson Innovation - JJDC, Inc. and Existing Investorsprnewswire.com · Aug 2020

Frequently asked questions

Who founded Thirty Madison?: Thirty Madison was founded by Demetrius Michael Karagas, Steven Gutentag in 2016.
Who are Thirty Madison's investors?: Thirty Madison's investors include Alpha Partners, Alumni Ventures, Comcast Ventures, Connetic Ventures, CVS Health Ventures, Evolution VC Partners, First Round Capital, Foreground Capital and 18 more.
How much funding has Thirty Madison raised?: Thirty Madison has disclosed $255.7M raised across 3 of its 6 known rounds.
Where is Thirty Madison headquartered?: Thirty Madison is headquartered in Astoria, US.