QLM Technology
QLM Technology is a Bristol-based quantum-photonics company that builds Quantum Gas Lidar cameras and QLM Cloud SaaS to continuously detect, localize, and quantify methane emissions for oil and gas operators, wastewater utilities, and emissions-analytics partners.
- Company typePrivate
- Founded2017
- HeadquartersBristol, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What QLM Technology does
QLM Technology Ltd is a Bristol, UK-based quantum-photonics company founded in 2017 by Dr. Xiao Ai out of the University of Bristol's Quantum Technology Enterprise Centre. The company develops and manufactures the Quantum Gas Lidar (marketed as the Methane Lidar Camera), a patented sensor system that combines tunable diode laser absorption spectroscopy (TDLAS), differential absorption lidar (DIAL), and time-correlated single-photon counting (TCSPC) using single-photon avalanche detector (SPAD) technology to detect, visualize, localize, and quantify methane and other greenhouse gas emissions at ranges up to 200 metres. The hardware is paired with QLM Cloud, a SaaS analytics platform providing real-time visualization, GPS-mapped event tracking, configurable alerts, wind correlation, and audit-ready regulatory reporting for EPA, OGMP 2.0, and ESG compliance workflows.
QLM operates a hybrid revenue model combining capital-equipment sales of the lidar camera with recurring SaaS subscriptions on QLM Cloud. Go-to-market is enterprise-led: SLB (formerly Schlumberger) is the largest shareholder and exclusive channel partner for upstream and midstream oil and gas under a Collaboration Agreement that integrates QLM into SLB's End-to-end Emissions Solutions (SEES) offering. The company supplements this with direct enterprise sales (a Denver-based US office and dedicated Americas business development), a second channel via the April 2025 Project Canary integration for North American utilities, and trials in Japan, Australia, and Europe with operators including ENEOS Xplora, TotalEnergies, Repsol Sinopec Resources UK, National Gas Transmission, and Severn Trent Water. Primary verticals are upstream and midstream oil and gas (continuous monitoring of platforms, compressor stations, flares, vents, storage tanks, and terminals) and wastewater utilities (anaerobic digesters, sludge lagoons, headworks), with stated expansion intent into refining, landfills, and agriculture.
The company holds more than 14 granted patents across US, UK, and EP jurisdictions, ATEX certification for hazardous environments, and US EPA Alternative Test Method approval (granted August 2025 to SLB) covering all US oil and gas leak-resolution thresholds. QLM employs 30–50 people across UK sites (Cardiff headquarters, Bristol R&D, Paignton manufacturing at the EPIC centre) and Denver. CEO Paul Hughes assumed the role in October 2025, succeeding Murray Reed, with the explicit mandate to scale recurring service revenue. Total funding raised is approximately £22M (~$28M) across seed, Series A, a convertible note facility, and a 2025 regional equity round.
QLM Technology firmographics
Firmographics- Name
- QLM Technology
- Legal name
- QLM Technology Ltd
- Website
- https://qlmtec.com
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- QLM Technology is a Bristol-based quantum-photonics company that builds Quantum Gas Lidar cameras and QLM Cloud SaaS to continuously detect, localize, and quantify methane emissions for oil and gas operators, wastewater utilities, and emissions-analytics partners.
- Ownership category
- akta.pro rank
QLM Technology industry classification
Industry- Product category
- Methane Emissions Monitoring
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)
- SIC
- Optical Instruments & Lenses (3827)
- akta.pro primary industry
- Fugitive Emissions & Leak Detection (LDAR, OGI, Methane) (EUAHADAB)
- akta.pro secondary industries
- Industrial & Energy MRV (Facilities, Renewables, Methane, Process Emissions) (EUABACAI), Advanced Leak Quantification & Emissions Measurement (Methane Quantification/OGI/Flux) (EUAJADAK), 3D Vision, Depth Sensing & Point Cloud Analytics (HDAAAEAK), LiDAR & 3D Sensing Modules (HDAHALAG), Remote Sensing & Geospatial MRV (Satellite, Aerial, LiDAR, SAR) (EUABACAF)
Keywords
Where QLM Technology is headquartered
LocationHeadquarters
- HQ city
- Bristol
- HQ country
- United Kingdom
- HQ region
- Europe
Offices4 records
Markets served
QLM Technology business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales
Revenue model
- Quantum Gas Lidar Hardware Sales: Sale of quantum gas lidar camera systems for continuous methane emissions monitoring, priced for industrial deployment with cost-effective scalability at high volume
- QLM Cloud SaaS Subscription: Software-as-a-Service subscription for QLM Cloud analytics platform providing visualization, alerts, reporting, and certification capabilities. Offered as part of combined hardware+software solution.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Hybrid | Annual | Enterprise deployment with SaaS subscription |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels10 records
QLM Technology product offering
Product offeringCore offering
QLM Technology designs, manufactures, and sells a patented Quantum Gas Lidar camera (also marketed as the Methane Lidar Camera) that uses single-photon detection with tunable diode lasers to detect, localize, and quantify methane emissions continuously at ranges up to approximately 200 meters. The hardware is paired with QLM Cloud, a SaaS analytics platform providing real-time visualization, alerts, mapping, and audit-ready emissions reporting for oil and gas operators, wastewater utilities, and other methane-intensive industries.
Product overview
QLM Technology offers a unified product ecosystem comprising the Quantum Gas Lidar (also marketed as the Methane Lidar Camera) as the core hardware platform and QLM Cloud as the analytics and reporting software layer. The Quantum Gas Lidar uses patented quantum photonics technology combining single-photon detection with tunable diode lasers to detect, visualize, locate, and quantify methane emissions in 3D at ranges up to 200 meters. QLM Cloud receives data from the lidar via encrypted tunnel and provides real-time monitoring, event tracking, wind correlation, mapping, time-series analysis, customizable alerts, and regulatory-compliant reporting. The company also offers a Methane Survey Service for periodic monitoring. Both products were commercially launched together in July 2023 and are offered as a Software-as-a-Service (SaaS) solution, with the lidar hardware available through SLB exclusively for upstream and midstream oil and gas markets.
Differentiator
Problem solved
Functional benefit
Products and services
- Quantum Gas Lidar (also marketed as Methane Lidar Camera) A patented quantum-enabled gas sensing lidar camera that combines tunable diode laser absorption spectroscopy (TDLAS), differential absorption lidar (DIAL), and time-correlated single photon counting (TCSPC) with single-photon avalanche detector (SPAD) technology to detect, visualize, locate, and accurately quantify methane and other greenhouse gas emissions at ranges up to 200 meters. Sold to oil and gas operators, wastewater utilities, and other GHG-intensive industries.
- QLM Cloud A cloud-based analytics and management platform that ingests Quantum Gas Lidar data and provides real-time visualization, event management, wind data correlation, mapping with GPS coordinates, time-series analysis, configurable alerts and notifications, and audit-ready reporting for methane emissions data. Offered as a SaaS subscription bundled with the Quantum Gas Lidar camera.
- QLM Methane Survey Service A service offering providing methane survey capabilities using QLM's lidar technology for periodic monitoring and quantification of emissions across industrial facilities.
Quantifiable outcome
- Detected and quantified 264 individual methane leaks in 81-day METEC blind trial, identifying 75% of total trial emissions
- +4 more outcomes
Companies that use QLM Technology
Customer profileNamed customers6 records
Segments2 records
Ideal customer profiles2 records
QLM Technology technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
AI capability5 records
Feature6 records
QLM Technology partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered minor and core.
- ENEOS XploraminorJapan trial conducted with SLB at Nakajo oil and gas field in Niigata. Successfully visualized and quantified methane emissions during minor air vent operations. ENEOS considering broader deployment to enhance operational efficiency.
- Project CanarycoreStrategic partnership integrating QLM's quantum lidar methane camera with Project Canary's emissions analytics platform. Creates comprehensive solution for utility and local gas distribution companies delivering data visualization, accurate quantification, and actionable insights. Partnership marks Project Canary's tenth technology integration.
- SLB (Schlumberger)coreSLB is QLM's largest shareholder with exclusive channel partnership for upstream and midstream oil and gas markets. Collaboration Agreement guarantees support and sales integration into SLB's End-to-end Emissions Solutions (SEES) platform. SEES selected QLM after rigorous technical evaluation for differentiated detection, quantification, and localization capabilities.
Scale indicators9 records
Recent moves8 records
Expansion highlights7 records
QLM Technology competitors and assessment
Company assessmentDirect peers
- Picarro: Picarro is the established leader in cavity ring-down spectroscopy-based continuous methane and GHG monitoring for oil & gas, water utilities, and other industrial sites. It directly competes with QLM on continuous emissions monitoring accuracy and SaaS analytics, and multiple QLM executives (CCO Aaron Van Pelt, Americas BD lead Robby Vaughn) previously held senior roles at Picarro.
- LongPath Technologies: LongPath Technologies provides continuous methane detection using laser absorption spectroscopy for oil & gas operators, directly competing with QLM's continuous monitoring value proposition across upstream and midstream sites in North America.
- Kuva Systems: Kuva Systems offers cloud-connected gas imaging cameras for continuous methane and VOC leak detection at industrial sites. Its hardware-plus-cloud model closely mirrors QLM's approach, serving oil & gas and similar compliance-driven customers.
- Rebellion Photonics (Honeywell): Rebellion Photonics, acquired by Honeywell, develops optical gas imaging (OGI) cameras for real-time hydrocarbon leak visualization in oil & gas and petrochemical facilities. It is one of the most established gas-imaging competitors to QLM's continuous monitoring offering.
Broad incumbents
- Baker Hughes: Baker Hughes provides broad oilfield services and decarbonization solutions including methane emissions management technologies and digital monitoring platforms. As a major oilfield services incumbent with overlapping emissions offerings, it competes with QLM indirectly through enterprise-level integrated decarbonization contracts.
Others
- SLB (Schlumberger): SLB is both QLM's largest shareholder and exclusive oil & gas channel partner, integrating QLM's lidar into its End-to-end Emissions Solutions (SEES) platform. While not a traditional competitor, SLB also develops and acquires adjacent emissions technologies, making the partnership strategically symbiotic but also a concentration risk.
Emerging players
- Aclima: Aclima operates mobile and stationary methane and air pollution sensing networks using laser spectroscopy, targeting emissions intelligence for cities, utilities, and oil & gas. It overlaps with QLM in providing block-level continuous emissions data and analytics.
- Aeroqual: Aeroqual produces compact gas and particulate monitors for environmental, industrial, and regulatory applications. While broader in scope than QLM, it competes in adjacent air quality and emissions monitoring use cases.
- Ouster: Ouster is a leading digital LiDAR sensor manufacturer serving automotive, industrial automation, robotics, and smart infrastructure markets. Its mature, low-cost LiDAR architecture and scale represent a potential competitor or supplier reference point for QLM's lidar-based sensing platform.
- Project Canary: Project Canary is an emissions measurement and analytics platform integrating multiple sensor modalities for upstream operators and utilities. While currently a QLM integration partner, it also aggregates competing sensor data, making it both a channel and a potential competitive aggregator.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks7 records
Key highlights7 records
Customer concentration
QLM Technology social profiles
Digital presenceQLM Technology compliance and trust
Trust signalCompliance2 records
QLM Technology financial estimates
Financial estimateRevenue estimate
Valuation estimate
QLM Technology leadership team
Management profileNumber of profiles
Profiles12 records
QLM Technology funding detail
Funding detailFunding overview
Funding rounds5 records
Investors14 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
QLM Technology M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about QLM Technology
What does QLM Technology do?
QLM Technology designs, manufactures, and sells a patented Quantum Gas Lidar camera (also marketed as the Methane Lidar Camera) that uses single-photon detection with tunable diode lasers to detect, localize, and quantify methane emissions continuously at ranges up to approximately 200 meters. The hardware is paired with QLM Cloud, a SaaS analytics platform providing real-time visualization, alerts, mapping, and audit-ready emissions reporting for oil and gas operators, wastewater utilities, and other methane-intensive industries.
Is QLM Technology a public or private company?
QLM Technology is a private company. It is classified as venture growth investor backed and is currently operating.
When was QLM Technology founded?
QLM Technology was founded in 2017. It employs 11 to 50 people.
Where is QLM Technology based?
QLM Technology is headquartered in Bristol, United Kingdom, in the Europe region.
How does QLM Technology make money?
Two revenue lines are on record. Quantum Gas Lidar Hardware Sales are the primary driver. The others are QLM Cloud SaaS Subscription.
Who are QLM Technology's main competitors?
Direct peers on record are Picarro, LongPath Technologies, Kuva Systems and Rebellion Photonics (Honeywell). Baker Hughes is listed as a broad incumbent. SLB (Schlumberger) is listed as an others. Emerging players are Aclima, Aeroqual, Ouster and Project Canary.
Does QLM Technology have an API?
No public API is recorded for QLM Technology.
What industry is QLM Technology in?
QLM Technology's product category is Methane Emissions Monitoring. Its primary akta.pro industry code is EUAHADAB, Fugitive Emissions & Leak Detection (LDAR, OGI, Methane), with a secondary code of EUABACAI, Industrial & Energy MRV (Facilities, Renewables, Methane, Process Emissions). Its NAICS code is 518210 and its SIC code is 3827.