Exum
Denver, US · Founded 2016 · Delaware corporation · 42 employees on LinkedIn · 5 known investors
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.
Founders & leadership
MA
Michael A MinyardExecutive
JT
James ThorsonExecutive
JW
Jeffrey WilliamsNamed on SEC filing
SS
Stephen StricklandNamed on SEC filing
Board
PG
Paul GiovacchiniBoard director
DC
Doug CampbellBoard director
DC
David ClouseBoard director
TT
Temuulen TumurbatBoard director
SP
Steve PattisonBoard director
Investors · 5
Reported raises · per SEC filings
Form D private placements$17.1M disclosed across 6 rounds · 2019–2026
▶$3.4MraisedJul 2026 · 8 investors · Other TechnologyRule 506(b)
▶$3.4MraisedJul 2026 · 8 investors · Other Technology
Rule 506(b)
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
▶$120KraisedJan 2026 · 6 investors · Other TechnologyRule 506(b)
▶$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
▶$1.1MraisedApr 2025 · 5 investors · Other TechnologyRule 506(b)
▶$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
▶$1.5MraisedJul 2024 · 6 investors · Other TechnologyRule 506(b)
▶$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
▶$10.3MraisedMar 2024 · 30 investors · Other TechnologyRule 506(b)
▶$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
▶$600KraisedDec 2019 · 4 investors · Other TechnologyRule 506(b)
▶$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
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 3
by search overlapInstrumentum6 shared keywordsInstrumentum provides outsourced sterile processing department (SPD) services through offsite facilities, load balancing hospital and ASC surgical instrument processing to expand capacity without internal capital projects. It serves health systems, ambulatory surgery centers, and medical device vendors in the healthcare surgical services industry.
SoundCloud3 shared keywordsAudio distribution and music-sharing platform for artists and creators.
IDbyDNA3 shared keywordsScalable, high throughput DNA sequencing platforms.
Companies competing with Exum for the same Google search keywords, organic and paid, via search-intersection analysis.
Non-dilutive funding · 3 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| National Institute of Standards and Technology (NIST)National Institute of Standards and Technology | Phase II | 2022 | $399.8K |
| U.S. Air ForceAir Force | Phase I | 2022 | $49.4K |
| National Institute of Standards and Technology (NIST)National Institute of Standards and Technology | Phase I | 2021 | $99.9K |
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
Frequently asked questions
- What does Exum do?
- 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.
- Who are Exum's investors?
- Exum's investors include Band of Angels, Caruso Ventures, Cortado Ventures, FortySix Venture Capital, Houston Angel Network.
- How much funding has Exum raised?
- Exum has disclosed $17.1M raised across 6 rounds.
- Where is Exum headquartered?
- Exum is headquartered in Denver, US.