/Companies

Nomos

New York, US · Founded 2022 · 4 known investors

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Best NOMOS designs radiation therapy planning and delivery systems for medical professionals treating cancer patients. The company specializes in innovations for intensity-modulated radiation therapy (IMRT) and image-guided radiation therapy (IGRT), serving oncology centers globally with external beam and brachytherapy solutions.

Founders & leadership

Nomos was founded in 2022 by John Nay.

JN
John NayFounder
SV
Sri ViswananthNamed on SEC filing

Board

SP
Stevi PetrelliBoard director
SV
Sri ViswanathBoard director

Investors · 4

Funding

SEC filings, press & company announcements

$261.9M disclosed across 3 of 4 rounds · 2024–2026

▶$120MraisedJun 2026 · 19 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Samir KaulDirector
  • Thomas MalloyExecutive Officer
  • Scott WorlandExecutive Officer
  • John NayExecutive Officer, Director, Promoter
  • Patrick VergaraExecutive Officer
  • Stevi PetrelliDirector
  • Peter WallaceDirector
  • Paul PasqualeExecutive Officer
  • Peter ChiaroExecutive Officer
Offering amount
$120M
Amount sold
$120M
First sale
Jun 2026
Incorporated
Corporation, Delaware, 2022
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$103.5MraisedNov 2025 · 21 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Stevi PetrelliDirector
  • John NayExecutive Officer, Director, Promoter
  • Sri ViswanathDirector
Offering amount
$103.5M
Amount sold
$103.5M
First sale
Nov 2025
Incorporated
Corporation, Delaware, 2022
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$38.4MraisedJun 2024 · 35 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • John NayExecutive Officer, Director, Promoter
  • Sri ViswananthDirector
Offering amount
$38.4M
Amount sold
$38.4M
First sale
Jun 2024
Incorporated
Corporation, Delaware, 2022
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Frequently asked questions

What does Nomos do?
Best NOMOS designs radiation therapy planning and delivery systems for medical professionals treating cancer patients. The company specializes in innovations for intensity-modulated radiation therapy (IMRT) and image-guided radiation therapy (IGRT), serving oncology centers globally with external beam and brachytherapy solutions.
Who founded Nomos?
Nomos was founded by John Nay in 2022.
Who are Nomos's investors?
Nomos's investors include Partners for Growth, Partners for Growth (PFG), Index Ventures, Speedinvest.
How much funding has Nomos raised?
Nomos has disclosed $261.9M raised across 3 of its 4 known rounds.
Where is Nomos headquartered?
Nomos is headquartered in New York, US.