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Compare · TOMZ vs WLK

TOMZ vs WLK

Side-by-side comparison of TOMI Environmental Solutions Inc. (TOMZ) and Westlake Corporation (WLK): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both TOMZ and WLK operate in Major Chemicals (Industrials), so they compete in similar markets.
  • WLK is the larger of the two at $10.92B, about 497.8x TOMZ ($21.9M).
  • Over the past year, TOMZ is down 10.5% and WLK is up 12.3% - WLK leads by 22.8 points.
  • TOMZ has been more active in the news (13 items in the past 4 weeks vs 4 for WLK).
  • WLK has more recent analyst coverage (25 ratings vs 1 for TOMZ).
PerformanceTOMZ-10.50%WLK+12.30%
2025-06-09+0.00%2026-06-08
MetricTOMZWLK
Company
TOMI Environmental Solutions Inc.
Westlake Corporation
Price
$0.97-4.77%
$85.25+0.80%
Market cap
$21.9M
$10.92B
1M return
+37.54%
-12.46%
1Y return
-10.50%
+12.30%
Industry
Major Chemicals
Major Chemicals
Exchange
NASDAQ
NYSE
IPO
2004
News (4w)
13
4
Recent ratings
1
25
TOMZ

TOMI Environmental Solutions Inc.

TOMI Environmental Solutions, Inc., a bacteria decontamination and infectious disease control company, provides environmental solutions for indoor surface decontamination in the United States and internationally. Its products and services include SteraMist Surface Unit, a fully portable, handheld, point and spray disinfection/decontamination system intended to provide quick turnover of any affected space; SteraMist Environment System, a transportable, remotely controlled system that provides complete room disinfection/decontamination of a sealed space up to 103.8 m3; and The SteraMist Hospital Disinfection Cart, a solution to aid its hospital-healthcare customers in providing the quality of care and safety to their patients by disinfecting patient and operating rooms, pharmacies, ambulances, and emergency environments in a hospital or healthcare facility. The company also offers SteraMist Select Surface Unit; Stainless Steel 90-Degree Applicator; iHP Plasma Decontamination Chamber; SteraMist Custom Engineered System; and iHP Corporate Service Decontamination. In addition, it provides full room, equipment, facility, and emergency disinfection and decontamination services. The company manufactures, sells, services, and licenses SteraMist Binary Ionization Technology, a hydrogen peroxide-based mist and fog. Its products and services are used in pharmaceutical companies, clean rooms, hospitals and medical facilities, ambulances, bio-safety labs, tissue and blood labs, pharmaceutical labs, vivariums, research universities military and government agencies, office buildings, schools, athletic facilities, single-family homes and multi-unit residences, cruise ships, schools, and entertainment establishments; patient medical transport airline, hospitality, and transportation industries; and cannabis market. The company was incorporated in 1979 and is headquartered in Frederick, Maryland.

WLK

Westlake Corporation

Westlake Chemical Corporation, together with its subsidiaries, manufactures and markets basic chemicals, vinyls, polymers, and building products worldwide. It operates through two segments, Vinyls and Olefins. The Vinyls segment provides specialty and commodity polyvinyl chloride (PVC), vinyl chloride monomers, ethylene dichloride, chlorine, caustic soda, chlorinated derivative, and ethylene products. This segment also manufactures and sells PVC compounds and building products fabricated from PVC, including residential siding, trim and molding, pipe and fittings for various water, sewer and industrial applications, profiles for windows and doors, decking products, films for various inflatables, wall covering tapes, roofing applications, and composite roof tiles. The Olefins segment offers polyethylene, styrene monomers, and various ethylene co-products, as well as sells propylene, crude butadiene, pyrolysis gasoline, and hydrogen products. Westlake Chemical Corporation offers its products to a range of customers, including chemical processors, plastics fabricators, small construction contractors, municipalities, and supply warehouses in various consumer and industrial markets, such as flexible and rigid packaging, automotive products, coatings, water treatment, refrigerants, and residential and commercial construction, as well as other durable and non-durable goods. The company was founded in 1986 and is headquartered in Houston, Texas. Westlake Chemical Corporation is a subsidiary of TTWF LP.

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