Fundraising Fox

Exum

Denver, US · Delaware corporation · 5 known investors

exuminstruments.com ↗

Exum develops the Massbox, a laser ablation laser ionization (LALI) analytical instrument for scientific labs that improves ionization efficiency and ease of use. The company serves research scientists and laboratory professionals seeking more reliable and portable mass spectrometry equipment.

Deep TechHardwareNew Materialsin /exum-instruments-inc.@exuminstruments

Founders & leadership

JW
Jeffrey WilliamsExecutive Officer, Director, Promoter
MA
Michael A MinyardExecutive Officer
JT
James ThorsonExecutive Officer, Director
TT
Temuulen TumurbatDirector
PG
Paul GiovacchiniDirector
SP
Steve PattisonDirector
SS
Stephen StricklandDirector
DC
Doug CampbellDirector
DC
David ClouseDirector

Investors · 5

Band of AngelsSilicon Valley
Caruso VenturesBoulder · $500K – $2.5M
Cortado VenturesOklahoma City
FortySix Venture CapitalTulsa · $250K – $1M
Houston Angel NetworkHouston

Reported raises · per SEC filings

Form D private placements
▶$3.4MraisedJul 2026 · 8 investors · Other Technology
Rule 506(b)
Exum Instruments has filed a notice of an exempt offering of securities to raise $6,700,000.00 in New Funding. - intelligence360intelligence360.news · Jul 2026
Officers, directors & promoters on the filing
  • Jeffrey WilliamsExecutive Officer, Director, Promoter
  • James ThorsonExecutive Officer, Director
  • Temuulen TumurbatDirector
  • Paul GiovacchiniDirector
  • Steve PattisonDirector
Offering amount
$6.7M
Amount sold
$3.4M
First sale
Jun 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$120KraisedJan 2026 · 6 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Jeffrey WilliamsExecutive Officer, Director, Promoter
  • Michael A MinyardExecutive Officer
  • David ClouseDirector
  • James ThorsonExecutive Officer, Director
  • Jeffrey GentschDirector
  • Steve PattisonDirector
Offering amount
$5M
Amount sold
$120K
First sale
Dec 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$1.1MraisedApr 2025 · 5 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Doug CampbellDirector
  • David ClouseDirector
  • Michael A MinyardExecutive Officer
  • Jeffrey WilliamsExecutive Officer, Director, Promoter
  • James ThorsonExecutive Officer, Director
Offering amount
$3M
Amount sold
$1.1M
First sale
Apr 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$1.5MraisedJul 2024 · 6 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Doug CampbellDirector
  • Michael A MinyardExecutive Officer
  • Jeffrey WilliamsExecutive Officer, Director, Promoter
  • James ThorsonExecutive Officer, Director
  • David ClouseDirector
Offering amount
$2M
Amount sold
$1.5M
First sale
Jul 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$10.3MraisedMar 2024 · 30 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Doug CampbellDirector
  • David ClouseDirector
  • James ThorsonExecutive Officer, Director
  • Jeffrey WilliamsExecutive Officer, Director, Promoter
  • Michael A MinyardExecutive Officer
Offering amount
$10.7M
Amount sold
$10.3M
First sale
Apr 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$600KraisedDec 2019 · 4 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Stephen StricklandDirector
  • Jeffrey WilliamsExecutive Officer, Director
Offering amount
$1.5M
Amount sold
$600K
First sale
Nov 2019
Incorporated
Corporation, Delaware, 2016
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