Fundraising Fox

NexEos Diagnostics

Chester Springs, US · Founded 2019 · Delaware corporation

Healthtech

Founders & leadership

TM
Theresa MansiinExecutiveFounder at Nexeosbio
ST
Stephen TullmanExecutive

Board

DL
Dennis LangerBoard director
JH
Jeff HimawanBoard director
CM
Christopher MolineauxBoard director
LM
Louis ManziBoard director
NS
Nicholas SicilianoBoard director

Reported raises · per SEC filings

Form D private placements

$25.7M disclosed across 5 rounds · 2019–2026

▶$3MraisedFeb 2026 · 19 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Theresa MansiExecutive Officer
  • Christopher MolineauxDirector
  • Louis ManziDirector
  • Dennis LangerDirector
  • Jeff HimawanDirector
  • Stephen TullmanExecutive Officer, Director
  • Nicholas SicilianoDirector
Offering amount
$3M
Amount sold
$3M
First sale
Feb 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$4.9MraisedJun 2024 · 22 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Louis ManziDirector
  • Jeff HimawanDirector
  • Nicholas SicilianoDirector
  • Dennis LangerDirector
  • Christopher MolineauxDirector
  • Stephen TullmanExecutive Officer, Director
Offering amount
$4.9M
Amount sold
$4.9M
Minimum investment
$10K
First sale
May 2024
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5.1MraisedFeb 2023 · 19 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Stephen TullmanExecutive Officer, Director
  • Nicholas SicilianoDirector
  • Louis ManziDirector
  • Dennis LangerDirector
  • Jeff HimawanDirector
  • Christopher MolineauxDirector
Offering amount
$5.1M
Amount sold
$5.1M
Minimum investment
$10K
Proceeds to insiders
$300K
First sale
Feb 2023
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$9.7MraisedOct 2021 · 21 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Nicholas SicilanoDirector
  • Dennis LangerDirector
  • Christopher MolineauxDirector
  • Louis ManziDirector
  • Theresa MansiExecutive Officer, Director
  • Jeffrey HimawanDirector
  • Stephen TullmanDirector
Offering amount
$9.7M
Amount sold
$9.7M
Minimum investment
$20K
Proceeds to insiders
$300K
First sale
Oct 2021
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$3MraisedJul 2019 · 4 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Stephen TullmanExecutive Officer, Director
  • Theresa MansiExecutive Officer, Director
Offering amount
$5.5M
Amount sold
$3M
Minimum investment
$20K
Proceeds to insiders
$400K
First sale
Jul 2019
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗

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

Non-dilutive funding · 2 SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
National Institutes of Health (NIH)National Institutes of HealthPhase I2021$590.6K
National Institutes of Health (NIH)National Institutes of HealthPhase I2020$300K

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

In the news

NexEos Diagnostics has filed a notice of an exempt offering of securities to raise $3 Million in New Funding. - intelligence360intelligence360.news · Mar 2026

Frequently asked questions

How much funding has NexEos Diagnostics raised?
NexEos Diagnostics has disclosed $25.7M raised across 5 rounds.
Where is NexEos Diagnostics headquartered?
NexEos Diagnostics is headquartered in Chester Springs, US.