Chemical and Gas Manufacturing Companies in the United States

Working with chemicals and gases requires technical precision, deep expertise, and rigorous adherence to safety and quality standards. Whether you are sourcing ASME-coded pressure vessels, compressed air dryers, or specialty gas filtration systems, RFQ USA makes it easy to connect with verified American manufacturers that meet your exact needs.

Our national directory features suppliers with decades of experience serving chemical processing, petrochemical, natural gas, and pharmaceutical applications. Each company listed has been vetted for reliability, technical capability, and the certifications required to safely deliver products for complex, high-risk environments. From pressure-rated equipment to filtration media and laboratory-scale reactors, RFQ USA gives procurement teams and engineers confidence in their sourcing process.

ASME Certified and National Board Registered Manufacturers

Companies listed in the RFQ USA chemical and gas manufacturing category often hold multiple certifications from top regulatory bodies, including ASME and the National Board of Boiler and Pressure Vessel Inspectors. Common certifications include:

• ASME U, UM, and S code stamps for pressure vessels and piping
• National Board NB and R stamp qualifications
• Quality control processes aligned with ISO 9001 standards

These credentials ensure that manufacturers are prepared to handle the demands of high-pressure and chemically reactive environments, including vessels up to 10,000 gallons rated for 15 to 5,000 psi. You can confidently source equipment built to meet or exceed all applicable U.S. codes and standards.

Lab Pilot Plant Reactors and Pressure Equipment

Many manufacturers in our directory provide custom-engineered lab pilot plant reactors capable of handling complex chemical reaction processes. These small-scale systems are often built to mirror industrial-scale production processes and allow for safe R&D, product testing, and batch production. In addition, you will find vendors with proven experience designing and manufacturing:

• Pressure vessels
• Reactor systems
• High-pressure piping and tubing
• Industrial skids and modular systems

Whether your project requires a single stainless steel tank or an integrated processing system, you can use RFQ USA to find a U.S. supplier that is qualified, certified, and ready to deliver.

Compressed Air Dehydration, Gas Filtration, and Desiccant Solutions

Moisture and particulate contamination can cause significant damage to compressed air systems and gas pipelines. RFQ USA includes manufacturers that have been designing and fabricating air and gas treatment products for over 60 years. Available solutions include:

• Compressed air dryers are engineered to reduce dew point and prevent condensation
• Gas filters for rust, oil, and contaminant removal in transmission lines
• Dryer desiccants such as activated alumina, silica gel, and molecular sieve

These products are essential for industries such as oil and gas, aerospace, food production, and medical device manufacturing, where clean and dry gas is critical to maintaining uptime and quality.

High-Pressure Valves, Fittings, and Gas Boosters

For applications requiring extremely high-pressure gas handling, RFQ USA connects you with suppliers offering ultra-high-pressure valves, fittings, and related equipment rated up to 150,000 psi. Many also supply pneumatic boosters like Sprague gas boosters, ideal for bottling operations, pipeline testing, and high-pressure gas transfer. These systems are designed for performance, durability, and ease of integration across a wide range of industrial environments.

Support for Certified and Diverse U.S. Manufacturers

In addition to technical qualifications, RFQ USA highlights and promotes businesses with recognized diversity certifications. Many of our listed chemical and gas manufacturers are Certified Women’s Business Enterprises (WBE), Veteran-Owned Businesses, or located in HUBZones. Doing business with these companies not only supports inclusion in the manufacturing sector but may also provide supply chain advantages for government and enterprise contracts.

Find the Right Chemical and Gas Supplier at RFQ USA

With our advanced search and filter tools, you can quickly locate certified manufacturers based on capabilities, certifications, or product types. There is no cost to explore the platform, submit RFQs, or contact vendors directly. Whether you are in need of high-performance valves, gas filtration systems, ASME-coded equipment, or lab reactors, RFQ USA helps streamline your sourcing from qualified American vendors.

If your company manufactures chemical or gas-related products and is certified to meet industry standards, we invite you to apply for inclusion in the RFQ USA directory. We are committed to spotlighting the best U.S. manufacturers across every category.