relevant. solutions | critical service solutions


Relevant is an organization that is dedicated to providing its customers with exceptional products and services. We are proud to bring together a team of highly-trained technicians, engineers, designers, and experts from a variety of different professions to provide our clients with the answers they need and the results they are looking for. At Relevant, we don't just sell parts and services; we work collaboratively with our customers to understand their needs and provide them with the best solutions to operate more efficiently.

We hold ourselves to the highest standards of professionalism and excellence, and are committed to building long-lasting relationships with our partners based on trust and mutual respect. Our goal is to solve industry challenges with premiere products, extraordinary people, and innovative, relevant solutions that help our customers thrive and succeed in their business.

Product Groups

Instrumentation & Automation

Backed by legendary manufacturers, our instrumentation and automation team can guide you from design to set-up through any process instrumentation application. Whether you need to measure it, monitor it, or control it… we have what you need, without exception.

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Rotating Equipment

Thousands of air compressor, blower and vacuum solutions are at your fingertips by partnering with Relevant. We engineer, install and service your assets — whatever your need, whatever your industry.

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Thermal Equipment

Relevant brings you heat transfer/cooling products and solutions from leading manufacturers with proven supremacy. From shell and tube, plate and frame, and air-cooled heat exchangers to steam and chilled-water coils, electric heaters, cooling towers, evaporative coolers, and gas-fired process heaters, Relevant has you covered.

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Our purification and filtration equipment for water and process applications are second to none. We design solutions from a comprehensive portfolio of water strainers, cartridge filters, ultra-filtration for RO and Demin water systems, to gas filter separators and coalescers.

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Companies & Brands

Switch Filtration®

Switch Filtration® is proud to offer a wide range of superior quality filter replacement solutions for high-speed rotating equipment within the industry. Our in-house manufacturing process utilizes an innovative approach to create equivalent OEM filter elements that are designed and tested to outperform and outlast the original equipment. We take immense pride in providing reliable filtration solutions that meet and exceed our clients’ needs. With our commitment to excellence, you can trust Switch Filtration® to provide you with top-of-the-line filter replacements that are crafted with the highest standards of quality and effectiveness.

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Precision Fitting & Guage

Precision Fitting & Gauge (PF&G)

For years, PF&G has established an excellent partnership with Honeywell Instrumentation, Honeywell Analytics, and Honeywell Heat Transfer Solutions in creating top-notch instrumentation solutions. Our facilities are equipped with sturdy ParkerStores, industrial hose shops, instrument and calibration labs, in addition to MARC and Green Tag Centers for valve repair, calibration, and testing. We pride ourselves on being the foremost option for instrumentation and controls, fluid connectors, and PRV and control valve solutions.

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Mid-South Sales Company

Established in 1954, at Mid-South Sales, we take pride in our affiliation with renowned brands like Fireye, Rosemount Analytical, Forney, Testo, and Honeywell. Our team of experts is dedicated to delivering exceptional solutions through premium products and services. We are committed to meeting our clients’ needs and exceeding their expectations, and our knowledgeable associates work tirelessly to provide top-notch solutions tailored to our clients’ specific requirements. We believe that our clients’ success is our success, and thus, we constantly strive to initiate innovative and effective solutions. Trust us to provide unparalleled support, and we assure you of our commitment to delivering superior products and services.

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Mid South Sales Co

Rawson Industrial Controls

Rawson & Industrial Controls Distributors

Rawson, Inc. (a Relevant Company) is a leading industrial distribution company based in Houston, Texas. Founded in 1954, Rawson is the premier instrumentation, valve, and controls distributor in the United States. With stocked service centers throughout Texas, Louisiana, and Oklahoma, and stocked service centers in those states, Rawson maintains a large inventory along with outstanding technical support close to our customer base. Our goal is to partner with our customers to develop innovative and sustainable solutions, as well as reduce cost of total ownership through technology, operations excellence, and strong customer focus. We do not just respond to emergencies: we create systems to anticipate and eliminate them.

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J&W Instruments

J&W Instruments was founded in 1972 and has since established itself as a reputable sales company specializing in instrumentation, Process Control Systems (PCS), and process measurement. J&W takes pride in being the go-to source for process instrument technicians, PCS compliance, and accredited metrological calibration services in the Midwest region. The company is committed to providing top-notch products and services to its customers while maintaining the highest standards of professionalism and quality in all its operations. J&W Instruments values its relationship with clients and strives to exceed their expectations by meeting their unique needs and providing excellent support and customer service.

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J&W Instrumentation

Marshall W. Nelson & Associates

Marshall W. Nelson & Associates

Marshall W. Nelson & Associates is a trusted provider of professional engineering services that specialize in process heating applications. Our proficiency spans across various industries such as building materials, chemical, concrete/aggregate, food and beverage, HVAC, metals, oil and gas, pollution control, power generation, pulp and paper, thermal processing systems, water and waste, and other related fields. We work with our clients collaboratively to create tailor-made Industrial Burner Management Systems that align with their unique requirements. Our team is committed to providing innovative solutions that surpass our customer’s expectations, utilizing state-of-the-art technology and decades of experience in the industry. Trust Marshall W. Nelson & Associates to help you resolve your combustion challenges in a timely and efficient manner.

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Value Added


When we say we are an end-to-end solutions provider, we mean it. When things don’t go according to plan, you can count on our factory-trained and certified, solution driven technicians for on-site or field service 24/7/365. We’re the kind of people who never say “never” and instead reply, “We’ll find a way.”

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When an ‘off-the-shelf’ solution won’t cut it, turn to the Relevant Engineers -- a group of highly skilled problem solvers. Through innovative design, this team of experts has proven success in transforming intangible ideas to efficient solutions.

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