LongPath Technologies
Boulder, US · Founded 2018 · Delaware corporation · 41 employees on LinkedIn · 5 known investors
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LongPath Technologies provides methane emissions monitoring and quantification networks for oil and gas operators, using advanced sensing to detect and measure emissions. Its services support regulatory compliance with EPA OOOO and state-level programs in California, Colorado, New Mexico, and Texas.
Founders & leadership
LongPath Technologies was founded in 2018 by Gregory B. Rieker.
Investors · 5
How we know: Buff Gold Ventures's portfolio page · a partner's Signal profile · Not right? Tell us
Also in the syndicate · 4
Funding
SEC filings, press & company announcements$39.8M disclosed across 4 of 5 rounds · 2021–2023
- Undisclosed amountSeries AAug 2023
White Deer Energy (lead), ConocoPhillips, Pro-Frac, Williams Companies
Source ↗
▶$35MraisedFeb 2023 · 16 investors · Other TechnologyRule 506(b)
- Gregory RiekerExecutive Officer, Director, Promoter
- Sean CoburnPromoter
- Edward WeaverPromoter
- H. Robert GillDirector
- Varun BabbiliDirector
- Caroline AldenPromoter
- Ian DickinsonExecutive Officer, Director
- Joseph R. EdwardsDirector
- John Bookout IIIDirector
- Robert J. WrightPromoter
- Offering amount
- $35M
- Amount sold
- $35M
- First sale
- Sep 2022
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$800KraisedAug 2022 · 4 investors · Other TechnologyRule 506(b)
- Gregory B. RiekerDirector, Promoter
- James F. AdelsonDirector
- Ian DickinsonExecutive Officer, Director
- Sean CoburnPromoter
- H. Robert GillDirector
- Robert J. WrightPromoter
- John Bookout IIIDirector
- Edward M. WeaverPromoter
- Caroline B. AldenPromoter
- Offering amount
- $1.5M
- Amount sold
- $800K
- First sale
- Jul 2022
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$2MraisedJan 2022 · 3 investors · Other TechnologyRule 506(b)
- Robert J. WrightPromoter
- Edward M. WeaverPromoter
- Ian DickinsonExecutive Officer, Director
- Sean C. CoburnPromoter
- John Bookout IIIDirector
- H. Robert GillDirector
- James F. AdelsonDirector
- R.C. MercureDirector
- Caroline B. AldenPromoter
- Gregory B. RiekerDirector, Promoter
- Offering amount
- $2M
- Amount sold
- $2M
- First sale
- Oct 2021
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$2MraisedJun 2021 · 2 investors · Other TechnologyRule 506(b)
- Edward M. WeaverPromoter
- John Bookout IIIDirector
- Ian DickinsonExecutive Officer, Director
- R.C. MercureDirector
- Caroline B. AldenPromoter
- James F. AdelsonDirector
- Robert J. WrightPromoter
- Sean C. CoburnPromoter
- Gregory B. RiekerDirector, Promoter
- H. Robert GillDirector
- Offering amount
- $2M
- Amount sold
- $2M
- First sale
- May 2021
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Related companies · 4
Companies working in the same space as LongPath Technologies.
Non-dilutive funding · 1 SBIR/STTR award
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| Department of Energy | Phase I | 2021 | $200K |
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 LongPath Technologies do?
- LongPath Technologies provides methane emissions monitoring and quantification networks for oil and gas operators, using advanced sensing to detect and measure emissions. Its services support regulatory compliance with EPA OOOO and state-level programs in California, Colorado, New Mexico, and Texas.
- Who founded LongPath Technologies?
- LongPath Technologies was founded by Gregory B. Rieker in 2018.
- Who are LongPath Technologies's investors?
- LongPath Technologies's investors include Buff Gold Ventures.
- How much funding has LongPath Technologies raised?
- LongPath Technologies has disclosed $39.8M raised across 4 of its 5 known rounds.
- Where is LongPath Technologies headquartered?
- LongPath Technologies is headquartered in Boulder, US.




