Combustion Research Associates

What Combustion Research Associates does

Combustion Research Associates (CRA) is a privately held Indian engineering firm headquartered in Noida, Uttar Pradesh, founded in 1990, that designs and manufactures custom-engineered gas systems for industrial and municipal operators. The company organises its offering into four integrated product lines: gas flares (enclosed ground, steam-assisted, air-assist, utility, rental, and portable mobile variants); thermal oxidizers (DFTO, regenerative, recuperative, low-NOx, acid gas/halogenated, sulphur tail gas, and vapor combustion units); biogas processing systems (chemical, biological, bio-regenerative, and carbon-activated H2S scrubbers, membrane-based biogas upgrading, gas dehumidifiers, biogas enclosed flares, and sequential digester mixing systems); and gas compression and processing skids (metering, pressure regulation, vapor recovery, and flare gas recovery). CRA manufactures the entire gas train in-house and delivers systems under lump-sum turnkey (LSTK) contracts, leveraging authorised packager status with Ro-Flo Compressors and recognised Integration Partner status with Air Products Membrane Solutions to assemble fully integrated packages with single-partner accountability.

The company serves oil & gas (national oil companies and international operators), compressed biogas / biomethane developers, municipal wastewater treatment plants, chemical and petrochemical processors, and emerging pyrolysis operators, with named reference projects for ONGC, IOCL, Delhi Jal Board, PUB Singapore, Adani Infra, Mazoon Dairy (Oman), VA Tech Wabag (Zambia), Jacobs (consultancy), and a UK plastic pyrolysis facility. It holds CE certification, API 521/537 compliance for high-capacity flare systems, ISO 20675 compliance for biogas systems, and PUB Singapore registered vendor status. CRA executes through a direct enterprise sales motion backed by technical content marketing, industry events (IEW, BBB Summit), case studies, and a formal Partner Program with EPCs and engineering consultants.

Revenue is generated primarily through one-time custom-engineered equipment supply contracts (LSTK and equipment supply) complemented by recurring aftermarket services (field services, retrofit, operations & maintenance, and long-term service agreements) drawn from an installed base of 800+ systems across 25+ countries. The pricing model is quote-driven with no public pricing, all engagements originating through a website contact form and specialist consultation. The company is private, with no disclosed funding rounds, institutional investors, or parent company, and appears to be founder- or management-owned.

Name

Combustion Research Associates

Legal name

Combustion Research Associates

Website

https://cra.energy

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

101–250 employees

Short description

Combustion Research Associates (CRA) is a Noida, India-based private engineering firm founded in 1990 that designs and manufactures custom-engineered gas systems — flares, thermal oxidizers, H2S scrubbers, biogas upgrading, and compression skids — for oil & gas, municipal wastewater, CBG, and industrial operators across 25+ countries under LSTK contracts.

Ownership category

akta.pro rank

Product category

Industrial Gas Processing & Emissions Control Equipment

NAICS

Air and Gas Compressor Manufacturing (333912), Pump and Compressor Manufacturing (33391)

SIC

Oil & Gas Field Machinery & Equipment (3533), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

Gas Handling Equipment & Storage (Cylinders/Tanks/Valves) (IMAEACAL)

akta.pro secondary industries

Gas Processing Plant Equipment & Skids (Separators, Heat Exchangers, Turboexpanders) (EUAAABAH), Industrial Gas Infrastructure & Metering (Onsite Storage, PRS, Metering, SCADA) (EUALALAH), RNG Interconnection, Gas Quality & Upgrading Compliance (EUAJAJAC), Gas Processing Automation, Controls & Optimization (SCADA, APC, Digital Twins) (EUAAABAI)

Keywords

• Industrial gas flares
• Thermal oxidizers
• Biogas processing systems
• H2S scrubbing equipment
• Emissions control engineering

Headquarters

HQ city

Noida

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Custom-Engineered Equipment Supply: Design, engineer, manufacture, and supply custom-engineered gas systems (flares, thermal oxidizers, biogas processing equipment, compression skids) on a project basis. Revenue is generated through lump-sum turnkey (LSTK) contracts and equipment supply agreements with industrial clients across oil & gas, biogas, and municipal infrastructure sectors.
2. Aftermarket Services & Long-Term Agreements: Field services, retrofit projects, operations & maintenance, and long-term service agreements providing recurring revenue from the installed base of 800+ systems globally. Services include commissioning, troubleshooting, spares, and performance upgrades.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Combustion Research Associates (CRA) designs, engineers, and manufactures custom-engineered gas systems including industrial flares, thermal oxidizers, biogas processing equipment (H2S scrubbers, biogas upgrading, dehumidification), and gas compression skids. Solutions are delivered as Lump Sum Turnkey (LSTK) projects with in-house design, manufacturing, commissioning, and aftermarket services for oil & gas operators, biogas developers, municipal wastewater utilities, and chemical/petrochemical facilities.

Product overview

Combustion Research Associates (CRA) is an engineering company specializing in custom-engineered gas systems for combustion, emissions control, biogas processing, and gas compression applications. The company offers four integrated product lines: (1) Flares including Open Elevated, Enclosed Ground, Steam Assisted, Air Assist, Utility, Rental, and Portable Mobile variants; (2) Thermal Oxidizers including Direct Fired (DFTO), Regenerative (RTO), Recuperative, Low NOx, Acid Gas/Halogenated, and Sulphur Tail Gas models plus Vapor Combustion Units; (3) Biogas Systems including Chemical H2S Scrubber, Biological H2S Scrubber, Bio-Regenerative Chemical H2S Scrubber, Carbon Activated Dry H2S Scrubber, Membrane Biogas Upgrading System, Gas Dehumidifier, Biogas Enclosed Flare, and Sequential Digester Biogas Mixing System; and (4) Gas Compression and Processing including Metering Skid, Industrial Odor Control, Gas Compression Skid, Flare Gas Recovery, Pressure Regulating Skid, and Vapor Recovery Unit. These systems are complemented by Combustion Ancillaries and services including Field Services, Retrofit, Operations & Maintenance, and Long Term Service Agreements. CRA engineers and manufactures all components in-house and delivers them as integrated packages with one accountable partner for the complete gas train.

Differentiator

Problem solved

Functional benefit

Products and services

• Open Elevated Flare Open elevated flare system engineered for stable combustion under variable gas conditions, with options to reduce smoke, noise, and radiant heat for upstream oil & gas and industrial operators.
• Enclosed Ground Flare Smokeless, silent, and safe enclosed ground flaring solution designed for variable gas compositions, low-BTU streams, and applications near residential areas where visual, noise, or odor emissions are restricted.
• Steam Assisted Flare High-capacity smokeless combustion flare system with steam-assist technology engineered for demanding industrial flaring applications such as refinery vent streams.
• Air Assist Flare Smokeless and efficient flaring system with supercharged air assist technology designed for stable combustion under variable gas flows at large-scale oil & gas installations.
• Utility Flare Reliable, robust, and field-proven flare system designed for general industrial applications requiring routine flaring operations.
• Rental Flare Flexible, fast-deployment flare systems offered on a rental basis for temporary and emergency flaring needs at industrial and well-testing sites.
• Portable Mobile Flare Portable trailer-mounted flare system engineered for on-site flexibility and rapid deployment at remote or transient industrial locations.
• Direct Fired Thermal Oxidizer (DFTO) Rugged direct-fired thermal oxidizer using a burner and oxidizer chamber for rapid destruction of VOC and HAP streams without heat recovery, suited to high-VOC or intermittent applications.
• Regenerative Thermal Oxidizer (RTO) High thermal recovery (90-95%) thermal oxidizer using ceramic media beds and flow-reversing damper valves, delivering lowest fuel consumption for continuous-duty large-flow, low-VOC applications.
• Recuperative Thermal Oxidizer Thermal oxidizer with metallic heat exchanger that recovers heat from exhaust to preheat process air, delivering medium CAPEX, reduced fuel cost, and moderate complexity for industrial VOC streams.
• Low NOx Thermal Oxidizers Clean thermal oxidizer with ultra-low NOx control engineered for emissions-sensitive applications requiring compliance with strict NOx limits.
• Acid Gas & Halogenated Thermal Oxidizer Thermal oxidizer engineered with specialized materials and design for destruction of harsh acid and halogenated gas streams from chemical processing operations.
• Sulphur Tail Gas Thermal Oxidizer Thermal oxidizer purpose-built for sulphur control applications handling sulphur tail gas streams from refining and gas processing operations.
• Vapor Combustion Unit Controlled, safe, and reliable combustion system for hydrocarbon vapours recovered from loading, unloading, and tank breathing operations at terminals and refineries.
• Gas Compression Skid Compact skid-mounted gas compression system using rotary sliding vane technology for biogas, landfill gas, and vapor recovery applications, engineered with full inlet filtration and controls.
• Metering Skid Engineered metering skid providing accurate, reliable, and compliant flow measurement of biogas, natural gas, and process gas streams.
• Pressure Regulating Skid Precise, safe, and reliable pressure regulating skid providing gas pressure control for downstream pipelines, burners, and process equipment.
• Flare Gas Recovery System Engineered flare gas recovery system that captures and reuses combustible gases otherwise flared, reducing emissions and recovering usable energy at upstream and midstream sites.
• Vapor Recovery Unit Vapor recovery system recovering up to 98% of VOC vapours from loading, unloading, and tank breathing operations, returning them to process or fuel gas at terminals and refineries.
• Industrial Odor Control Systems Advanced odor treatment systems for H2S, VOCs, and corrosive emissions at wastewater, landfill, and industrial sites.
• Biogas Chemical H2S Scrubber Proven chemical scrubbing system using sodium hydroxide (NaOH) to neutralize H2S in biogas, achieving >99% removal for CBG, RNG, and grid injection applications.
• Biological H2S Scrubber Bio-trickling filter system using bacteria to convert H2S into sulfate naturally, achieving 90-95% removal with near-zero chemical input and low operating cost.
• Bio-Regenerative Chemical H2S Scrubber Hybrid scrubber combining chemical absorption with biological regeneration; H2S absorbed in mild NaOH is biologically converted into elemental sulfur, achieving >99% removal with low waste and regenerated alkali.
• Carbon Activated Dry H2S Scrubber Activated carbon media scrubber that traps H2S from biogas, used as a reliable polishing step to meet stringent H2S outlet specifications.
• Membrane Biogas Upgrading System Membrane-based biogas upgrading system achieving >98% biomethane purity for CBG, RNG, and grid injection applications, with fully integrated preconditioning (H2S scrubbing, dehumidification, compression) matched to membrane inlet specifications.
• Gas Dehumidifier Compact biogas dehumidification system achieving dew points of 5-8°C for downstream power generation, compression, and pipeline-quality applications.

Quantifiable outcome

• 99% DRE achieved on enclosed ground flares for ONGC Assam gas gathering stations (108,416 Nm3/hr)
• +7 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature9 records

Partnerships

Four partnerships are on record, tiered core and strategic.

• Ro-Flo CompressorscoreTechnology or IntegrationCRA is an authorized packager and distributor for Ro-Flo Compressors, a manufacturer of rotary sliding vane compressors used in biogas, vapor recovery, landfill gas, and wastewater treatment applications. CRA engineers the complete system around Ro-Flo compression units — inlet filtration, dehumidification, gas train design, skid fabrication, controls integration, and commissioning — all built in-house. Two successfully commissioned live projects (Mazoon Dairy Oman and Adani Infra India) demonstrate the partnership in practice. OEM parts and direct Ro-Flo technical support are maintained throughout project lifecycles.
• Air Products Membrane SolutionscoreTechnology or IntegrationCRA is a recognised Integration Partner for Air Products Membrane Solutions, one of the most established names in membrane-based gas separation with 270+ biogas system references globally. CRA engineers the complete system around Air Products' membrane modules — H2S scrubbing, dehumidification, compression, and filtration — all designed and manufactured in-house. The partnership delivers fully integrated packages co-engineered with Air Products, direct membrane supplier technical support, priority supply planning, and single-partner accountability for the full inlet-gas-to-pipeline-spec biomethane system.
• Jacobs (Engineering Consultancy)strategicImplementation/ SI/ Consulting PartnerJacobs served as lead consultant on the Changi Water Reclamation Plant enclosed ground flare project for PUB Singapore. Jacobs' role was to set engineering standards, conduct technical review of CRA's design basis against PUB specifications and ISO 20675, validate manufacturing QA/QC documentation, review reference plant performance, and approve FAT planning and inspection protocols. Jacobs' sign-off was the gating requirement for CRA's PUB vendor registration.
• Lalbuksh Voltas (Oman)strategicImplementation/ SI/ Consulting PartnerLalbuksh Voltas served as EPC partner for the Mazoon Dairy biogas compression and pipeline transport project in Oman. CRA partnered with Lalbuksh Voltas to design and deliver the high-performance biogas compression skid for the dairy processor, with Lalbuksh Voltas managing local infrastructure, installation, and commissioning coordination. This partnership demonstrated CRA's international execution capability in challenging site environments.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Honeywell UOP: Supplies process technology, gas processing, and emissions control solutions to the O&G and refining industries. Broader incumbent whose gas treating and sulphur recovery offerings overlap with CRA's H2S scrubbing and sulphur tail gas oxidizer products.
• Atlas Copco (Gas Compressors): Global manufacturer of oil-injected and oil-free gas compressors for industrial, biogas, and process gas applications. Competes in the same compression skid category as CRA but at much greater scale and with a broader product portfolio.

Direct peers

• National Airoil Group (NAO): Indian-headquartered manufacturer of industrial flares, thermal oxidizers, and gas processing equipment with strong presence in O&G and petrochemical markets. Closest like-for-like Indian competitor to CRA's flare and combustion product lines.
• Zeeco: Designs and manufactures combustion and environmental solutions including industrial flares, thermal oxidizers, and incinerators worldwide. Directly comparable to CRA's core flare and thermal oxidizer portfolio across oil & gas, petrochemical, and wastewater applications.
• Greenlane Renewables: Specialises in biogas upgrading systems producing pipeline-quality RNG. Comparable to CRA's membrane biogas upgrading offering and serves a similar developer and municipal customer base in the CBG/RNG value chain.
• John Zink (Koch): A global leader in industrial flares, thermal oxidizers, and combustion equipment for oil & gas, petrochemical, and emissions-control applications. Direct overlap with CRA's flare, DFTO/RTO, and vapour combustion product lines serving the same upstream and refining customer base.
• Wärtsilä Hamworthy: Provides biogas upgrading, gas conditioning, and marine/cryogenic gas handling systems. Overlaps with CRA's biogas upgrading, compression, and H2S scrubbing offerings for wastewater, landfill, and CBG plant operators.
• Energy Products Inc. (EPI): US-based manufacturer of industrial flares, thermal oxidizers, and combustion systems for upstream, midstream, and downstream applications. Directly comparable to CRA's enclosed ground flare, utility flare, and thermal oxidizer product lines.
• Bright Renewables (BTS Biogas): European supplier of biogas upgrading, H2S removal, and grid/RNG injection systems. Competes directly with CRA's membrane biogas upgrading and H2S scrubber product lines for municipal and agricultural biogas projects.

Emerging players

• Mabbett & Associates / DMT Environmental Technology: DMT supplies biogas upgrading and sulphur removal systems for landfill and wastewater applications. Comparable to CRA's biological and bio-regenerative H2S scrubber offerings for smaller-scale and European municipal biogas projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/craenergy

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Combustion Research Associates