Skip to main content
Houston Energy Directory · Updated 2026

Oil & Gas Companies in Houston, TX

A maintained directory of the operators, drilling contractors, oilfield-services firms, subsea specialists, engineers and equipment makers that make Houston the energy capital of the world. Searchable by segment.

357 companies14 segmentsLast reviewed: June 2026

The Houston oil & gas value chain, in one place

Houston anchors the global energy industry, from supermajors and independent E&P operators to the dense web of drilling contractors, oilfield-services companies, subsea and offshore specialists, engineering houses, and equipment manufacturers that supply them.

This directory organizes those companies by what they actually do, so you can move from a name to a segment in a click. Use the search and segment filters below to narrow the list.

Get the maintained 2026 Houston oil & gas dataset

The full directory as a structured file (company, segment, description), plus ModalPoint's read on how vendors win in energy and industrial markets: who buys, how they buy, and where the value chain is shifting. One email, no spam.

  • Built by operators, for operators. ModalPoint is an energy and industrial go-to-market intelligence advisory founded by the team behind EWR Digital, with 26 years in Houston B2B.
  • Proof, not theory. ModalPoint delivers go-to-market work for energy and industrial leaders, grounded in its DIG (Digital Information Governance®) methodology.
  • A living reference. The directory is refreshed as the Houston market consolidates, and you get the updates.
Company Explorer

Browse 357 companies by segment

Filter by what a company actually does, or search by name and keyword.

Showing 357 of 357 companies

2H Offshore Inc.

Subsea / Offshore / Marine

2H Offshore Inc. provides advanced structural and systems engineering services for offshore oil and gas and renewable energy structures, specializing in subsea systems, drilling risers, integrity management, minimum facility platforms, and floating wind applications.

Founded 1993 · 238 employees · Est. revenue $100m-$250m

Visit website

A2D Technologies

Oilfield Services

Petroleum well-logging services.

3 employees · Est. revenue $10m-$25m

ABS Group of Companies

Inspection, Safety & Corrosion

Safety, risk and certification services across business, industry and government.

Founded 2001 · 7 employees · Est. revenue $1m-$10m

Visit website

Accumulators, Inc.

Equipment & Manufacturing

Accumulators, Inc. designs and manufactures hydraulic accumulators, including piston, bladder, and diaphragm models, for oil and gas, aerospace, defense, and other industries. The company is ISO 9001 and ASME certified, with products rated up to 10,000 psi.

Founded 1987 · 20 employees · Est. revenue $10m-$25m

Visit website

ACS Separations & Mass-Transfer Products

Equipment & Manufacturing

High-performance engineered separations technology.

Advanced Valve Technology

Equipment & Manufacturing

Reinforced composite technology for ball, butterfly and check valves.

AES American Energy Services Inc.

Equipment & Manufacturing

Wide product line of oilfield valves.

Agar Corporation

Equipment & Manufacturing

Agar Corporation designs and manufactures process measurement and control systems for oil production and processing applications, including heavy oil well testing, wastewater treatment, tank dewatering, and gas-liquid foam control, serving clients across North America, South America, Europe, Africa, Asia, the Middle East, and Australia.

Founded 1980 · 52 employees · Est. revenue $100m-$250m

Visit website

AIMS International, Inc.

Inspection, Safety & Corrosion

AIMS International, Inc. supplies engineered fiberglass structural systems, grating, handrails, stair systems, and platform dock fendering products to the offshore oil and gas industry, and is a leading provider of vortex-induced vibration suppression solutions.

Founded 1982 · 7 employees · Est. revenue $1m-$10m

Visit website

Alexander/Ryan Marine & Safety Co.

Subsea / Offshore / Marine

Alexander/Ryan Marine & Safety Co. supplies maritime safety equipment and services, including lifeboats, inflatable liferafts, davits, winches, and personal protection products, and provides offshore field service technicians and survival craft servicing from facilities in Houston and New Orleans.

Founded 1990 · 43 employees · Est. revenue $50m-$100m

Visit website

Alliance Engineering

Engineering & Consulting

Engineering to develop and transport oil and gas resources safely and efficiently.

Est. revenue $25m-$50m

Visit website

Alliance Marine Services

Subsea / Offshore / Marine

Alliance Marine Services provides overhauling and maintenance services for marine engines and vessels, including routine maintenance, repairs, and complete engine overhauls to support operational performance and reliability in the maritime industry.

Founded 1999 · 9 employees · Est. revenue $1m-$10m

Visit website

Alloy Screen Works

Equipment & Manufacturing

Alloy Screen Works manufactures premium filtration screens and related products for the oil and gas, water well, environmental, and industrial markets, operating from a 91,000-square-foot facility in Houston, Texas, with API Q1 certification.

Founded 1998 · 19 employees · Est. revenue $10M-$25M

Visit website

Allseas

Subsea / Offshore / Marine

Allseas is a global offshore contractor specializing in pipeline installation, heavy lift operations, and subsea construction, with a proprietary fleet of specialized vessels. The company also develops technology for deep-ocean polymetallic nodule collection and river plastic removal.

Founded 1985 · 2,305 employees · Est. revenue $1b-$10b

Visit website

Alpha Sim Technology

Software & Data

Alpha Sim Technology, in business since 1991, provides consulting services supporting the transition from fossil fuels to renewable energy, while also serving the existing energy industry in addressing global warming and carbon emissions challenges.

Ambox Ltd.

Materials & Supply

Ambox Ltd. is a sheet metal and light plate fabricator offering stamping, laser cutting, press brake forming, welding, and machining services, with additional capabilities in tool and die work.

Founded 1953 · 16 employees · Est. revenue $10m-$25m

Visit website

AMEC Paragon

Engineering & Consulting

AMEC Paragon provides engineering, project, and technical consulting services to the energy and industrial sectors, with expertise spanning oil and gas, nuclear, renewable energy, mining, and infrastructure markets.

Founded 1982 · 403 employees · Est. revenue $1b-$10b

Visit website

Amercable Systems

Equipment & Manufacturing

Amercable Systems manufactures ISO 9001:2015-certified jacketed electrical power, control, and instrumentation cables for oil and gas, mining, industrial, and data center applications, including offshore, land-based, and underground environments.

American Alloy Steel

Materials & Supply

American Alloy Steel supplies carbon and alloy steel plate, round bar, flat bar, and precision flame-cut shapes to industries including petrochemical refining, power generation, pressure vessel manufacturing, and marine and offshore construction, with value-added fabrication services and 24/7 rush shipping capabilities.

Founded 1971 · 69 employees · Est. revenue $100m-$250m

Visit website

American Block MFG

Equipment & Manufacturing

American Block designs and manufactures oilfield and marine equipment, including sheaves, drilling blocks, rotary tables, swivels, mud pumps, and pressure gauges. The Houston-based company has also provided drilling equipment repair services since 1979.

Founded 1979 · 60 employees · Est. revenue $100m-$250m

Visit website

American Underwater Services Inc.

Subsea / Offshore / Marine

American Underwater Services Inc. provides commercial diving, underwater construction, marine salvage, and dredging services for inland and coastal environments. The company also performs pipeline construction, horizontal directional drilling, pond and tailings pond cleaning, and zebra mussel control.

Founded 1997 · 11 employees · Est. revenue $25m-$50m

Visit website

AmeriMex Motor & Controls, Inc.

Equipment & Manufacturing

AmeriMex Motor & Controls specializes in AC and DC motors and controls for industries including drilling, dredging, petrochemical, cement, plastic, and steel. The company also stocks replacement parts and accessories and provides repair, rebuilding, and load testing services.

20 employees · Est. revenue $50M-$100M

Visit website

Amerjin Co., LLC

Equipment & Manufacturing

Amerjin Co., LLC is a Houston-based supplier and exporter of Southeast Asian coffee beans and palm oil, sourcing Robusta and Arabica varieties from Vietnam and Indonesia and palm oil from Malaysia and Indonesia, with local delivery and freight services available.

AMRI Inc.

Equipment & Manufacturing

Butterfly valves, actuators and accessories for chemical, petrochemical and other markets.

Anadarko Petroleum

Operators (E&P)

Anadarko Petroleum is one of the world's largest independent oil and natural gas exploration and production companies, with operations spanning onshore U.S. basins, the Gulf of Mexico, and deepwater basins internationally.

Founded 1959 · 1,680 employees · Est. revenue $1b-$10b

Visit website

Ansul / Tyco Fire & Security

Inspection, Safety & Corrosion

Fire detection/suppression systems and extinguishing agents.

Est. revenue $1m-$10m

Visit website

Antares Offshore LLC

Engineering & Consulting

Antares Offshore LLC is an independently owned engineering and consulting firm specializing in offshore marine and subsea engineering, design, project management, and construction management, serving major and independent oil and gas operators and contractors from offices in Houston, Jakarta, and Kochi.

9 employees · Est. revenue $1m-$10m

Visit website

Anthelion Systems, Inc.

Software & Data

Hardware and software design: embedded systems, instrumentation and consulting.

2 employees · Est. revenue $1m-$10m

Visit website

Apache Corporation

Operators (E&P)

Apache Corporation is a subsidiary of APA Corporation that explores for and produces crude oil, natural gas, and natural gas liquids.

Founded 1954 · 2,585 employees · Est. revenue $1b-$10b

Visit website

Argus Subsea

Subsea / Offshore / Marine

Argus Subsea designs and manufactures subsea Christmas trees for deepwater applications, with equipment rated for water depths ranging from 500 to 5,000 feet.

Founded 1991 · 20 employees · Est. revenue $1m-$10m

Visit website

Astro Technology Inc.

Equipment & Manufacturing

Advanced instrumentation and innovative monitoring methods.

Founded 1994 · 3 employees · Est. revenue $1M-$10M

Visit website

Atlantia Offshore Limited

Subsea / Offshore / Marine

Turn-key fixed offshore minimal production platforms.

Atlas Instruments & Supply Co., Inc.

Equipment & Manufacturing

Manufacturer of weight indicators and field instrumentation.

Est. revenue $0-$1M

Visit website

ATP Oil and Gas Corporation

Operators (E&P)

Develops already-discovered offshore petroleum reserves.

Atwood Oceanics Inc.

Drilling Contractors

Atwood Oceanics Inc. is a global offshore drilling contractor that provides drilling and completion services for exploratory and developmental oil and gas wells. The company operates 13 mobile offshore drilling units and has three ultra-deepwater drillships under construction.

Founded 1968 · 330 employees · Est. revenue $500m-$1b

Visit website

Azonix Corporation

Equipment & Manufacturing

Diversified manufacturer of highly engineered industrial products.

Est. revenue $0-$1m

Visit website

Azura Energy Systems

Equipment & Manufacturing

Wellheads, trees and valves for land and subsea markets.

Baker Hughes Inc.

Oilfield Services

Baker Hughes Inc. provides equipment and services across the energy and industrial value chain, including oilfield services, turbomachinery, digital solutions, and LNG technology, operating in over 120 countries through its oilfield services and industrial energy technology segments.

49,647 employees · Est. revenue $10b+

Visit website

Belsim

Software & Data

Belsim provides data validation and reconciliation software for oil and gas and process industries, helping operators improve the accuracy of production data, monitor plant efficiency, and calculate key performance indicators using its VALI software suite.

Founded 1986 · 18 employees · Est. revenue $10m-$25m

Visit website

Bico Drilling Tools Inc.

Equipment & Manufacturing

Bico Drilling Tools Inc. designs, manufactures, and services downhole drilling motors, drilling jars, shock subs, and NMDC equipment for the oilfield, mining, and horizontal directional drilling industries, with specializations including directional drilling, MWD, and thru-tubing applications.

Founded 1991 · 91 employees · Est. revenue $100m-$250m

Visit website

Bishop Lifting Products, Inc.

Equipment & Manufacturing

Bishop Lifting Products, Inc. supplies wire rope, slings, synthetic web slings, roundslings, skip pans, and related lifting hardware to industrial customers. The company also provides material handling and heavy hauling equipment and services.

Founded 1984 · 185 employees · Est. revenue $250m-$500m

Visit website

Bisso Marine

Subsea / Offshore / Marine

Bisso Marine is a subsea and offshore marine construction contractor offering pipeline installation and burial, heavy lift, salvage, decommissioning, and diving services. The company operates a fleet of derrick barges, pipelay barges, and diving support vessels for the marine and energy industries.

Founded 1890 · 70 employees · Est. revenue $250m-$500m

Visit website

BJ Process & Pipeline Services

Oilfield Services

Pipeline flooding, hydrotesting, cleaning, drying, commissioning and pigging.

Est. revenue $1m-$10m

BJ Services

Oilfield Services

BJ Services provides hydraulic fracturing and pressure pumping solutions to upstream oil and gas operators across North American basins, offering cementing services, proprietary friction reducer chemistry, and digital operating systems designed to support completion efficiency and emissions reduction.

Founded 1872 · 567 employees · Est. revenue $1b-$10b

Visit website

Blue Dolphin Energy Company

Operators (E&P)

Blue Dolphin Energy Company refines crude oil into petroleum products including diesel fuel, naphtha, and distillates, and provides petroleum storage, terminaling, and pipeline transportation services. The company also holds oil and gas leasehold interests in the U.S. Gulf of Mexico.

Founded 1986 · 11 employees · Est. revenue $10m-$25m

Visit website

Boots & Coots International Well Control

Oilfield Services

Global emergency response: well-control prevention, response and restoration.

33 employees · Est. revenue $100m-$250m

BPZ Energy

Operators (E&P)

BPZ Energy is an oil and gas exploration and production company operating approximately 1.9 million net acres across four properties in northwest Peru, including offshore and onshore blocks, with an additional non-operating net profits interest in a producing property in southwest Ecuador.

Founded 2001 · 19 employees · Est. revenue $25m-$50m

Visit website

Brown Corrosion Services, Inc.

Inspection, Safety & Corrosion

Brown Corrosion Services, Inc. provides corrosion and erosion consulting, inspection, and control services for the oil and gas industry, covering cathodic protection, coatings, inhibition, material selection, internal corrosion monitoring, and sand monitoring.

Founded 1995 · 4 employees · Est. revenue $1m-$10m

Visit website
Curated & Reviewed

Matt Bertram

President, ModalPoint · CEO, EWR Digital (Houston) · Fractional CMO, OGGN

This directory is curated and maintained by ModalPoint, a go-to-market intelligence advisory for energy and industrial companies. Matt has spent 26+ years in Houston B2B and energy marketing, helping companies go to market in the energy sector.

Last reviewed: June 2026 · Sources: company self-descriptions, ModalPoint research. Listing is informational and not an endorsement. Spotted an error or a company we should add? Let us know.

FAQ

Questions about Houston oil & gas companies

How many oil and gas companies are based in Houston?+
Houston is home to thousands of oil and gas companies spanning operators, drilling contractors, oilfield services, subsea and offshore specialists, engineering firms and equipment manufacturers. This directory tracks a curated set across 12 industry segments.
What types of oil and gas companies are in Houston?+
They fall into segments including E&P operators, drilling contractors, oilfield services, subsea and offshore/marine, engineering and consulting, equipment and manufacturing, seismic and geophysical, software and data, inspection and corrosion, materials and supply, media and research, and staffing and training.
Who maintains this Houston oil and gas directory?+
It is curated by ModalPoint, a go-to-market intelligence advisory for the energy and industrial sectors, and reviewed by Matt Bertram, President of ModalPoint and CEO of EWR Digital.
Who are the largest oil and gas employers in Houston?+
Houston's largest energy employers include major operators, midstream companies, and global oilfield services firms. This directory groups 357 Houston-area companies by where they sit in the value chain, from operators and midstream to oilfield services, equipment, engineering, subsea, and software, so you can read the landscape by segment rather than by size alone.
What is the difference between upstream, midstream, and downstream companies in Houston?+
Upstream companies, called operators, find and produce oil and gas. Midstream companies move and store it through pipelines, gathering systems, and processing. Downstream companies refine and market it. Houston hosts all three, plus a dense oilfield services and equipment manufacturing base that supplies them.
How do oil and gas companies in Houston evaluate new technology and suppliers?+
They rely on peers first. A reference call from another operator outweighs advertising or trade media, which buyers treat with skepticism. The operations manager usually influences the technology decision more than IT. Real customer stories and qualification into project standards are the most persuasive proof.
How long is the sales cycle to sell into a Houston oil and gas operator?+
It is typically long. Most operators require a proof of concept before commitment, and decisions hinge on existing relationships and domain credibility more than product features. New software categories often show low search volume, so vendors must generate awareness before demand can be harvested.
Which Houston oil and gas segment is easiest to enter as a new vendor?+
There is no universal answer. The right entry point is usually one specific high-intent segment reached through a relationship or partnership path, not a broad launch. ModalPoint's route-to-market method scores buying urgency and seniority by segment to find the highest-intent pocket for a given offering.
Book a call

Talk to ModalPoint

A 30-minute call to see if ModalPoint is the right firm and whether the timing makes sense. No obligation either way.