Best Oil & Gas Equipment Companies in California, United States
The 39 best Oil & Gas Equipment companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Paulsson.
Our analysis of 50 Oil & Gas Equipment companies
$4.8b in tracked funding; 62% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2012.
Ranked: Best Oil & Gas Equipment companies in California
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Paulsson Manufacturer of multiple oil and gas equipment 29Funding top 46%Product top 46%Talent bottom 45%Tech bottom 43% All 8 signals ▾Fundingtop 46% Producttop 46% Talentbottom 45% Techbottom 43% Moatbottom 42% Innovationbottom 37% Globalbottom 31% Patentsbottom 29% Funding: Raised $18.1M across 11 rounds · 11 rounds over 6 yrs (1.8/yr) Product: 4 distinct product lines · Company stage: Grant (prize money) rank vs industry peers · Fliar Intelligence Index 29/100 | $18M | 37 mo ago | Funding Raised | Björn Paulsson CEO & President | 2007 | — | 3 patents Seismic vector sensor hardware and protective pod housing assemblies | — |
| 2 | Sapphire Manufacturer and global supplier of innovative graphics and mainboard products 45Growth top 30%News top 35%Funding top 36%Patents top 45% All 10 signals ▾Growthtop 30% Newstop 35% Fundingtop 36% Patentstop 45% Innovationbottom 49% Moatbottom 49% Techbottom 48% Talentbottom 48% Globalbottom 36% Marketbottom 24% Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo News: 6 BI events in 12 mo (of 49 tracked, 8 types) · +50% YoY rank vs industry peers · Fliar Intelligence Index 45/100 | $15M | 12 mo ago | Series C | Freddie Sarhan Chief Executive Officer | 2020 | WebflowYouTubeLeadfeeder+15 | 7 patents Photometric measurement instruments for light sources and dental photo‑curing equipment. | — |
| 3 | PCN Technology Communication technologies & products 21Global bottom 46%Funding bottom 39%Patents bottom 38%Innovation bottom 35% All 4 signals ▾Globalbottom 46% Fundingbottom 39% Patentsbottom 38% Innovationbottom 35% Global: Investors from 1 country beyond United States Funding: Raised $5.2M across 1 rounds · 1 rounds over 14 yrs (0.1/yr) rank vs industry peers · Fliar Intelligence Index 21/100 | $5M | 167 mo ago | Deadpooled | — | 2004 | — | 11 patents Multiplexed data transmission and secure management over repurposed network cabling. | — |
| 4 | Greenkraft Greenkraft: Environmentally friendly commercial trucks and vans with alternative fuel systems 8News top 49%Talent bottom 49%Growth bottom 47%Fin. health bottom 45% All 10 signals ▾Newstop 49% Talentbottom 49% Growthbottom 47% Fin. healthbottom 45% Fundingbottom 33% Globalbottom 32% Patentsbottom 26% Moatbottom 24% Marketbottom 23% Innovationbottom 4% News: 2 BI events in 12 mo (of 3 tracked, 2 types) · +100% YoY Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 8/100 | $495K | 161 mo ago | Public | George Gemayel CEO & President | 2008 | — | 2 patents LPG fuel delivery systems for internal combustion engines | — |
| 5 | Brown Hawk Manufacturer of flow meters and valve systems for measurement of oil, water and gas at wellheads | — | 45 mo ago | Deadpooled | Chris Brown Co-Founder & CTO | 2003 | — | — | — |
| 6 | Ecotec Provider of gas collection, transmission, emissions, and treatment systems | — | 52 mo ago | Seed | — | 2015 | WordPress Block EditorWordPressMySQL+25 | 14 patents Landfill gas and emissions monitoring using modular sensors and laser spectroscopy | — |
| 7 | Aeris Technologies Provider of oil and gas equipment | — | — | Acquired | — | 2013 | — | 5 patents Patents concentrated in health & consumer products | — |
| 8 | AMI Provider of advanced micro instruments gas & moisture analyzers | — | — | Acquired | Steven Kirchnavy Founder | 1995 | SentryApple iCloud MailNode.js+15 | — | 1 job opening · 1 launch |
Top 6 Oil & Gas Equipment companies in California
#1
Series C · Cerritos, California · founded 2020 · 17 employees$15Mraised▾
Manufacturer and global supplier of innovative graphics and mainboard products
- Sep 2025Series C$18M
- Oct 2024Series B$5M
- Jul 2023Series B$10M
- Oct 2021Series A—
#2
Funding Raised · Van Nuys, California · founded 2007$18.1Mraised▾
Manufacturer of multiple oil and gas equipment
- Jul 2023Grant (prize money)$463K
- Jun 2022Grant (prize money)$1.9M
- Oct 2020Grant (prize money)$150K
- Jun 2020Grant (prize money)$250K
#3
Deadpooled · San Diego, California · founded 2004 · 51 employees$5.2Mraised▾
PCN Technology designs, develops and markets I/O subsystem components that leverage existing energy grids and systems of products, devices, machinery, and installations in order to communicate and network mission critical data. that transform legacy automation and control wiring into high-bandwidth industrial Ethernet infrastructure for factories, buildings, oil & gas, energy & transportation.
- Sep 2012Series A$5.2M
#4
Public · Santa Ana, California · founded 2008 · 8 employees$495Kraised▾
Greenkraft: Environmentally friendly commercial trucks and vans with alternative fuel systems. They provide environmentally conscious solutions for fleets and individual customers. Specializing in commercial trucks and vans powered by gasoline, CNG, LPG, and electric, they cater to various industries like food service, electrical, construction, and landscaping. They focus on fuel efficiency, offering cost-effective and reliable vehicles. They are committed to introducing clean, green, and efficient automotive products. They offer alternative fuel systems and engines. They are an industry leader in alternative fuel products, providing high-quality, versatile trucks.
- Apr 2013Seed$495K
#5
Deadpooled · Santa Barbara, California · founded 2003 · 3 employees—raised▾
Manufacturer of flow meters and valve systems designed to offer an economical and effective solution for measurement of oil, water and gas at wellheads. The company's products are developed using advanced sensor technology and data analytics to offer sustainability insights, enabling industrial clients to mitigate methane emissions, reduce operating and maintenance costs and improve production economics.
- Nov 2022Seed—
#6
Seed · Colton, California · founded 2015 · 13 employees—raised▾
Provider of gas collection, transmission, emissions, and treatment systems
- Apr 2022Seed—
- Feb 2022Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Oil & Gas Equipment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Oil Gas Digital in California is moving
A read on the academic research around Oil Gas Digital in California — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 106 papers.
- University of Southern California57
- Southern California University for Professional Studies46
- University of California, Berkeley9
- California Institute of Technology7
- California Southern University6
- Geology2→3
- Artificial neural network1→3
- Geothermal gradient1→3
- Field (mathematics)2→3
- Petroleum engineering4
- Enhanced oil recovery4
- Carbon sequestration3
- Reservoir simulation2
- Greenhouse gas2