Fundraising Fox

ByHeart

New York, US · Founded 2017 · Delaware corporation · 149 employees on LinkedIn · 5 known investors

ByHeart is an infant formula company that manufactures science-driven baby formula with its own manufacturing process and supply chain. The page addresses a Clostridium botulinum contamination outbreak and outlines new testing protocols and safety controls for its products, sold to families in the US.

Founders & leadership

ByHeart was founded in 2017 by Mia B. Funt, Ron Belldegrun, Mia Funt, and Mia.

MBMia B. Funt
Mia B. FuntinCo-founder & President
RBRon Belldegrun
Ron BelldegruninCEO & Co-Founder
MFMia Funt
Mia FuntinCo-founder & President
M
MiaCo-founder
GKGeorg Krause-Vilmar
Georg Krause-VilmarinChief Legal Officer / Chief Business Officer
NMNiall Mullane
Niall MullaneinChief Quality Officer

Board

ASAmy Schulman
Amy SchulmaninBoard directorManaging Partner at Polaris Partners
HZHemi Zucker
Hemi ZuckerinBoard MemberManaging Partner at OCV Partners
GO
Guy OranimBoard director
ABArie Belldegrun
Arie Belldegrunin𝕏Board directorFounder and Senior Managing Director at Vida Ventures
AL
Anton LinderumBoard director
JKJoshua Kazam
Joshua KazamBoard directorCo-Founder and Director at Vida Ventures

Investors · 5

Reported raises · per SEC filings

Form D private placements

$378.4M disclosed across 6 rounds · 2019–2025

$95.5MraisedMay 2026 · 46 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Raphael WallanderDirector
  • Niall MullaneExecutive Officer
  • Hemi ZuckerDirector
  • Amy SchulmanDirector
  • Elizabeth AbramsDirector
  • Tommy BurkeDirector
  • Georg Krause-VilmarExecutive Officer
  • Arie BelldegrunDirector
  • Mia B. FuntExecutive Officer, Director
  • Devon KuehnExecutive Officer
  • Anton LinderumDirector
  • Ron BelldegrunExecutive Officer, Director
  • Joshua BradleyDirector
  • Denice TorresDirector
  • Joshua KazamDirector
  • Guy OranimDirector
Offering amount
$95.5M
Amount sold
$95.5M
First sale
Mar 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$72.2MraisedMar 2026 · 49 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Georg Krause-VilmarExecutive Officer
  • Amy SchulmanDirector
  • Hemi ZuckerDirector
  • Guy OranimDirector
  • Arie BelldegrunDirector
  • Anton LinderumDirector
  • Joshua KazamDirector
  • Raphael WallanderDirector
  • Elizabeth AbramsDirector
  • Mia B. FuntExecutive Officer, Director
  • Tommy BurkeDirector
  • Niall MullaneExecutive Officer
  • Denice TorresDirector
  • Ron BelldegrunExecutive Officer, Director
  • Devon KuehnExecutive Officer
  • Joshua BradleyDirector
Offering amount
$173.1M
Amount sold
$72.2M
First sale
Mar 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$29.6MraisedJan 2023 · 14 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Ron BelldegrunExecutive Officer, Director, Promoter
  • Robert PeruzziExecutive Officer
  • Joshua BradleyDirector
  • Joshua A. KazamDirector
  • Michael TullyDirector
  • Arie S. BelldegrunDirector
  • Mia B. FuntExecutive Officer, Director, Promoter
  • Devon KuehnExecutive Officer
  • Guy OranimDirector
  • Hemi ZuckerDirector
  • Amy SchulmanDirector
Offering amount
$60M
Amount sold
$29.6M
Proceeds to insiders
$2.2M
First sale
Dec 2022
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$62.2MraisedJul 2021 · 63 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Joshua BradleyDirector
  • Saloni VarmaExecutive Officer
  • Amy SchulmanDirector
  • James E. BauersmithExecutive Officer
  • Arie S. BelldegrunDirector
  • Hemi ZuckerDirector
  • Michael TullyDirector
  • Guy OranimDirector
  • Mia B. FuntExecutive Officer, Director, Promoter
  • Ron BelldegrunExecutive Officer, Director, Promoter
  • Joshua A. KazamDirector
Offering amount
$90M
Amount sold
$62.2M
Proceeds to insiders
$1.4M
First sale
Jul 2021
Incorporated
Corporation, Delaware, 2017
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$96.9MraisedApr 2020 · 99 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Allan SebbagExecutive Officer
  • Joshua KazamDirector
  • Mia B. FuntExecutive Officer, Director, Promoter
  • Joshua BradleyDirector
  • Hemi ZuckerDirector
  • Amy SchulmanDirector
  • Arie S. BelldegrunDirector
  • James E. BauersmithExecutive Officer
  • Guy OranimDirector
  • Ron BelldegrunExecutive Officer, Director, Promoter
Offering amount
$102.1M
Amount sold
$96.9M
Proceeds to insiders
$1.4M
First sale
Mar 2020
Incorporated
Corporation, Delaware, 2017
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$22MraisedJun 2019 · 49 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Ron BelldegrunExecutive Officer, Director, Promoter
  • Joshua KazamDirector
  • Guy OranimDirector
  • Mia B. FuntExecutive Officer, Director, Promoter
Offering amount
$22M
Amount sold
$22M
First sale
Jun 2019
Incorporated
Corporation, Delaware, 2017
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Company profile

researched Aug 2026

ByHeart is an infant formula company that markets a whole nutrition infant formula sold directly through its own online store, including promotional discounts on larger orders. The company positions its work around infant nutrition science, ingredient selection and product safety.

Since a November 2025 recall, ByHeart's public communications have centered on a Clostridium botulinum outbreak investigation conducted in cooperation with the U.S. Food and Drug Administration. The company published an Action Plan covering C. botulinum-specific testing protocols, enhanced supplier and ingredient quality assurance, manufacturing and facility improvements, and the creation of an independent Food Safety Advisory Council. Genetic sequencing data was submitted to a public federal database, and whole genome sequencing linked samples from a supplier lot of Organic Whole Milk Powder, a ByHeart formula sample, and a clinical sample from a child with infant botulism. The FDA concluded onsite inspections of ByHeart facilities without identifying deficiencies that could explain the root cause, while continuing to investigate a powdered milk ingredient produced by a third-party supplier. As of June 2026, the company stated the FDA had no further questions on its investigation findings, corrective actions, testing protocols and proposed preventative controls, with remaining steps outstanding before production resumes.

Business model

ByHeart sells infant formula to consumers, with its website operating an e-commerce storefront offering promotional discounts on qualifying order values.

Latest developments

On June 3, 2026 the FDA concluded facility inspections without identifying deficiencies explaining the outbreak's root cause. On June 10, 2026 ByHeart released its Action Plan, and on June 23, 2026 it introduced its Advanced C. botulinum Safety Protocol alongside research published in Frontiers in Microbiology. On June 26, 2026 the company said the FDA had reviewed its findings, corrective actions and testing protocols and confirmed it had no further questions, with additional steps remaining before production resumes.

Full profile — technology, go-to-market, risks & controversies

Technology

With IEH Laboratories, ByHeart developed an Advanced C. botulinum Safety Protocol: a dual-method test applied at three stages of production, described as capable of detecting contamination 1,000x below the detection limit of the industry-standard screening method (SRC) by traditional direct plating methodology. The underlying research was published in Frontiers in Microbiology, and the company states it is sharing both the research and the protocol openly. Under its Action Plan, C. botulinum-specific testing is to be applied to every dairy ingredient and to finished batches before release.

Go-to-market

Direct-to-consumer sales via the company's own website, with promotional pricing offers on the storefront.

Parents and caregivers of infants who use commercially prepared infant formula.

Risks & controversies

ByHeart's formula was subject to a recall beginning November 7-11, 2025 amid an infant botulism outbreak. Whole genome sequencing identified a match between samples from a supplier lot of Organic Whole Milk Powder, a ByHeart formula sample, and a clinical sample from a child with infant botulism. CDC and FDA declared the outbreak over on February 26, 2026, with no new cases since December, while root cause investigation continued into a powdered milk ingredient from a third-party supplier. Infant formula production remained suspended pending completion of remaining steps with the FDA as of June 2026.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
C. botulinum test sensitivity vs. standard SRC direct plating detection limitJun 20261,000x below SRC detection limit
HeadcountAug 2026149

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

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

Competitors · 2

by search overlap

Companies competing with ByHeart for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 7

launches, deals, and filings
Jun 2026
Return-to-market plan moves forward with FDA

ByHeart stated the FDA reviewed its investigation findings, corrective actions, new testing protocols and proposed preventative controls and confirmed it had no further questions; remaining steps remain before production resumes.

source ↗

Jun 2026
ByHeart introduces Advanced C. botulinum Safety Protocol

Developed with IEH Laboratories, a dual-method test applied at three stages of production, stated to detect contamination 1,000x below the SRC detection limit by traditional direct plating; supporting research published in Frontiers in Microbiology.

source ↗

Jun 2026
ByHeart releases its Action Plan

Action Plan covering C. botulinum-specific testing protocols, enhanced supplier and ingredient quality assurance, manufacturing and facility improvements, and establishment of an independent Food Safety Advisory Council.

source ↗

Jun 2026
FDA concludes ByHeart facility inspections with no deficiencies tied to botulism

FDA completed onsite inspections of ByHeart facilities and did not identify deficiencies that could explain the outbreak's root cause, while continuing to investigate a powdered milk ingredient produced by a third-party supplier.

source ↗

Feb 2026
CDC and FDA declare botulism outbreak over; investigation continues

CDC and FDA announced the infant botulism outbreak had ended with no new cases since December. Whole genome sequencing identified a match between two additional samples from a supplier lot of Organic Whole Milk Powder, a previously identified ByHeart formula sample, and a clinical sample from a child with infant botulism.

source ↗

Jan 2026
Genetic sequencing data submitted to public federal database

Between January 21 and February 3, 2026, ByHeart submitted genetic sequencing data to a public federal database as part of the outbreak investigation.

source ↗

Nov 2025
ByHeart infant formula recall begins

A recall of ByHeart infant formula began during November 7-11, 2025 in connection with an infant botulism outbreak.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
ByHeartDelaware

In the news

Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does ByHeart do?
ByHeart is a New York-based infant formula maker working with the FDA to resume production after a botulism-linked recall.
Who founded ByHeart?
ByHeart was founded by Mia B. Funt, Ron Belldegrun, Mia Funt, Mia in 2017.
Who are ByHeart's investors?
ByHeart's investors include Evolution VC Partners, OCV Partners, Polaris Partners, Red Sea Ventures, Vida Ventures.
How much funding has ByHeart raised?
ByHeart has disclosed $378.4M raised across 6 rounds.
Where is ByHeart headquartered?
ByHeart is headquartered in New York, US.