Fundraising Fox

Function

Catawissa, US · Founded 2015 · Delaware corporation · 5 employees on LinkedIn · 7 known investors

Find your way into Function

759 people in our graph share verified history with the Function team — schools, employers, funds. One of them is your warm intro.

Ken Chenaultunlockedknows Zahir Dossa · together at IBM (overlapped)
×4knows the team · via McKinsey & Company
×3knows the team · via IBM
×2knows the team · via MIT
knows the team · via Function of Beauty
knows the team · via Boston Redevelopment Authority

Founders & leadership

Function was founded in 2015 by Zahir Dossa.

ZDZahir Dossa
Zahir DossainFounderFounder/CEO at Function of Beauty
JM
Joshua MaciejewskiNamed on SEC filing

Investors · 7

Peterson VenturesSalt Lake City · $250K – $2.5M
Alumni VenturesreportedManchester · $100K – $10M
Andreessen HorowitzreportedMenlo Park · $500K – $50M
Battery VenturesreportedBoston · $500K – $100M
General CatalystreportedSan Francisco · $30M
NFDGreportedWilmington
Redpoint Venturesreported · 2 sourcesWoodside · $100K – $10M

Funding

SEC filings, press & company announcements

$552.8M disclosed across 4 rounds · 2017–2026

▶$85.8MraisedOct 2021 · 4 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Avik PramanikDirector
  • Nikhil ThukralDirector
  • Josh MaciejewskiExecutive Officer, Director
  • Alexandra PapazianExecutive Officer
  • Zahir DossaExecutive Officer, Director
Offering amount
$85.8M
Amount sold
$85.8M
First sale
Dec 2020
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5MraisedApr 2019 · 5 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Joshua MaciejewskiDirector
  • Zahir DossaExecutive Officer, Director
Offering amount
$5M
Amount sold
$5M
First sale
Mar 2019
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$12MraisedMar 2017 · 37 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • ZAHIR DOSSAExecutive Officer, Director
  • JOSHUA MACIEJEWSKIDirector
Offering amount
$12M
Amount sold
$12M
First sale
Feb 2017
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Founder mafia

2 people who came through Function went on to found or lead other companies.

Zahir DossaExecutive Officer, DirectorFounded Function of BeautyZach LipsonFounderFounded Dutchie

Acquisitions · 1

Early investors' stakes continue via these deals
SuppCo

Supp.co is a platform for building, optimizing, and tracking personalized supplement stacks aligned with individual health goals and lifestyles. The company serves health-conscious consumers and biohackers seeking transparency and structure in supplement selection.

In the news

Private Markets: Function, Xsight Labs lead latest funding wave - TipRanks.comtipranks.com · Aug 2026Function Raises $450M in Growth Fundingfinsmes.com · Aug 2026Whole-body MRI provider Function raises $450Mradiologybusiness.com · Aug 2026Beyond Annual Physicals: Function Secures $450M Growth Financing from General Catalysthitconsultant.net · Aug 2026Function Health secures $450M in growth financing | MobiHealthNewsmobihealthnews.com · Jul 2026Function Health raises $298M Series B at $2.5B valuationfinance.yahoo.com · Nov 2025

Frequently asked questions

Who founded Function?
Function was founded by Zahir Dossa in 2015.
Who are Function's investors?
Function's investors include Peterson Ventures, Alumni Ventures, Andreessen Horowitz, Battery Ventures, General Catalyst, NFDG, Redpoint Ventures.
How much funding has Function raised?
Function has disclosed $552.8M raised across 4 rounds.
Where is Function headquartered?
Function is headquartered in Catawissa, US.