- A. P. Buck, Inc.
 - Orlando - Maker of computer controlled, personal air sampling pumps. - Chemline, Inc.
- Kissimmee - Manufacturer of water treatment chemicals formulated to prevent deposits, corrosion, and biological fouling in boiler and cooling water systems.
- Data Flow Systems, Inc.
- Melbourne - Manufacturer of Supervisory Control and Data Acquisition (SCADA) systems for use in the water and wastewater industries.
- Diversified Research, Inc.
- Merritt Island - Manufacturer of radon monitors.
- Environmental Conservation Laboratories, Inc.
- Orlando - With experience in analyzing samples ranging from routine matrices such as soil, water, sludge or air, to more complex matrices including glass, concrete, paint and other waste related products.
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