Fundraising Fox

Mainstay Medical

Plymouth, US · Founded 2008 · 215 employees on LinkedIn · 8 known investors

Find your way into Mainstay Medical

Healthtech

Founders & leadership

Mainstay Medical was founded in 2008 by Dan Sachs.

DS
Dan SachsFounder
PCPeter Crosby
Peter CrosbyinExecutive
JH
Jason HannoninFounder

Board

MR
Manus RoganinBoard directorManaging Partner and Co-Founder at Fountain Healthcare Partners
APAntoine Papiernik
Antoine PapiernikinBoard directorChairman and Managing Partner at Sofinnova Partners

Investors · 8

Fountain Healthcare PartnersDublin · $10.8M – $16.2M
Sofinnova PartnersParis · $540K – $27M
Ally Bridge Groupreported · 2 sourcesNew York
Gilde HealthcarereportedUtrecht · $1.1M – $55M
Viking Global InvestorsreportedStamford

Also in the syndicate · 3

Irish Strategic Investment FundKCK GroupPerceptive Advisors

Funding

SEC filings, press & company announcements

$233.5M disclosed across 3 of 4 rounds · 2014–2024

▶$500.4KraisedApr 2014 · 3 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Manus RoganDirector
  • Antoine PapiernikDirector
  • Peter CrosbyExecutive Officer, Director
  • Dan SachsDirector
Offering amount
$500.4K
Amount sold
$500.4K
First sale
Apr 2014
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

In the news

Company - Mainstay Medicalmainstaymedical.com · Oct 2025Mainstay Medical raises $125M for neurostim techmassdevice.com · Feb 2024Irish back pain group Mainstay Medical raises €115m to fund expansionirishtimes.com · Feb 2024Series B Fundraising - Mainstay Medicalmainstaymedical.com · Jan 2024Mainstay Medical raises $108M - MassDevicemassdevice.com · Feb 2021Back pain device group Mainstay Medical raises $108m – The Irish Timesirishtimes.com · Feb 2021

Frequently asked questions

Who founded Mainstay Medical?
Mainstay Medical was founded by Dan Sachs in 2008.
Who are Mainstay Medical's investors?
Mainstay Medical's investors include Fountain Healthcare Partners, Sofinnova Partners, Ally Bridge Group, Gilde Healthcare, Viking Global Investors.
How much funding has Mainstay Medical raised?
Mainstay Medical has disclosed $233.5M raised across 3 of its 4 known rounds.
Where is Mainstay Medical headquartered?
Mainstay Medical is headquartered in Plymouth, US.