TOMI Environmental Solutions, Inc. (TOMZ)

TOMI Environmental Solutions makes disinfection equipment and services. The company is known for SteraMist, a system that uses hydrogen peroxide vapor to disinfect enclosed spaces like hospital rooms, medical equipment, and pharmaceutical manufacturing facilities. TOMI Environmental trades on the OTC Markets (OTC: TOMZ).

What the company does

TOMI Environmental Solutions makes machines that spray hydrogen peroxide vapor into enclosed spaces. The vapor kills bacteria, viruses, and fungi on surfaces and in the air. Once the disinfection cycle finishes, the hydrogen peroxide breaks down into water and oxygen, leaving no toxic residue. Hospitals use it to clean operating rooms and patient rooms between uses. Pharmaceutical plants use it to disinfect manufacturing areas and equipment. Food processing facilities use it on packaging and surfaces. The basic idea is simple: spray vapor, kill germs, let it dissipate.

The disinfection market

Medical facilities need to disinfect spaces constantly. Operating rooms must be sterilised between surgeries. Isolation rooms must be cleaned when patients leave. Equipment moving between areas must be decontaminated. For years, hospitals did this with bleach solutions, UV light, or other methods—all of which are slow, require people to do manual work, or don’t reach all surfaces equally. UV light kills germs where it reaches but misses shadows and complex equipment. Chemical sprays work but require contact time and careful handling. Gas-based disinfection can reach everywhere in a room, but some methods are toxic or slow.

Hydrogen peroxide vapor sits in the middle. It reaches every surface and corner of a room, kills pathogens quickly, and is safe once it evaporates. The downside is that you need equipment—a machine that generates and disperses the vapor—and the cycle takes time (usually 30 minutes to several hours depending on room size). For hospitals and pharmaceutical plants, this is acceptable. The speed and thoroughness beat manual disinfection, and the safety profile is strong.

How TOMI makes money

TOMI Environmental makes money two ways. First, it sells SteraMist equipment—the generators and dispersal systems that hospitals and facilities buy to do their own disinfection. A facility buys one or a few machines and uses them repeatedly. Second, it sells consumables: hydrogen peroxide cartridges that the machines use. Every disinfection cycle consumes hydrogen peroxide. TOMI supplies these cartridges—a recurring revenue stream. The company also sells service contracts, maintenance, and in some cases operates mobile disinfection services where TOMI sends technicians to disinfect a facility.

This business model is typical of equipment and consumables companies: equipment sales provide upfront revenue and install a customer base; consumables provide recurring revenue. The installed base of SteraMist machines is the company’s most valuable asset because every machine sold creates years of consumable purchases.

Scale and adoption challenges

TOMI Environmental is a small, niche player in a large disinfection market. Hospitals have many options: they can use traditional cleaning, UV systems, other vapor systems, or hire contract disinfection services. Adoption depends on TOMI demonstrating that SteraMist is faster, safer, or cheaper than alternatives. The company faces two barriers: first, hospitals are conservative and move slowly—switching to a new method requires training, process changes, and proof that it works; second, TOMI competes against larger companies with bigger sales forces and more established relationships.

The company grew its installed base during the COVID-19 pandemic, when hospitals became desperate to disinfect spaces thoroughly and quickly. Whether growth continued after the pandemic depends on whether those facilities kept using the equipment and whether TOMI could expand beyond crisis-driven adoption.

The business fundamentals

TOMI’s profitability hinges on a few simple metrics. First, how many SteraMist machines is it selling each year and at what price? Second, what is the installed base, and how many consumables does it consume? Third, what are the company’s operating costs relative to revenue? Equipment sales generate margin but are one-time per customer; consumables generate smaller margins per unit but repeat endlessly and are easier to deliver. A healthy SteraMist business would show a growing installed base, steady consumable sales per machine, and operating expenses well below gross profit.

The company operates in a market where disinfection is critical but not everyone uses the same method. Success requires continuous adoption and retention of customers. If hospitals switch to competitors’ vapor systems or alternative disinfection methods, sales and consumable revenue decline.

How to research TOMI Environmental

Start with the 10-K filing (SEC CIK 0000314227). Look at revenue: is equipment sales growing or shrinking? Is consumable revenue growing faster than equipment—a sign that the installed base is active and generating recurring revenue? Compare the two: if consumable revenue is flat or declining while equipment sales fall, the company has a shrinking installed base and a serious problem.

Watch gross margin trends. Equipment can be priced higher in markets where TOMI has strong adoption and few competitors; consumables have a predictable margin based on cost and pricing. If margins are compressing, it often means competitive pressure or price reductions to drive sales.

Look at the list of customers. Is revenue concentrated in one or two large hospital systems? If so, losing a customer is material. Is the company expanding geographically or into new customer types? Expansion into veterinary medicine, water treatment, or food safety would signal growth beyond core hospital markets.

Finally, read the risk section carefully. Disinfection technology and regulations can change. New competitors can emerge. Hospitals can shift disinfection methods. TOMI’s business is only valuable if the installed base keeps using SteraMist and new customers keep adopting it.