Indoor Environmental Engineering
- IAQ consulting firm specializing in healthy building design, building air quality diagnostics and mitigation planning, and construction defect forensics.
- http://www.iee-sf.com

Killeen Heating and Air Conditioning Inc.
- Addresses indoor air quality needs worldwide, from a single dwelling to a Factory.
- http://www.killeen-heatac.com/

Environmental Care Ltd
- Focuses on air quality, personal health care, environmental chemicals and water treatment.
- http://www.environmentalcare.com.hk/

Safe Technology Inc
- Offers indoor air quality consultation as well as chemical, mold and microbiological agent assessments.
- http://www.safetechnologyinc.com/

Air Tech International
- Offers environmental management and home inspections. Features EPA and FDA registered air disinfection equipment, mold cleaning products. Offers air duct, HVAC and dryer vent cleaning services within the Maryland, Virginia and the Washington DC area.
- http://www.air-techinternational.com/

Digital Diagnostic Systems, LLC
- Offers on-site air sampling for mold, pollen, and other types of identification.
- http://www.digitaldiagnosticsystems.com/

Siria Technologies
- Provides services to industrial firms or local communities who want to know more about local air quality or noise pollution.
- http://www.siriatech.com/

Wisconsin Occupational Health Laboratory
- Offers industrial hygiene testing. Provides information on services, an online survey, order and submission form and a newsletter.
- http://www.slh.wisc.edu/wohl/

Environmental Safety Management Corporation
- Certified experts in Indoor Air Quality and microbiological testing, remediation, and documentation. HVAC contractor support.
- http://www.esmcorp.com

Chelsea Group
- Specializes in strategic, technical, and marketing consulting to major corporations for enhanced positioning of products and services relating to the indoor environment.
- http://www.chelsea-grp.com/

Villa Environmental Consultants, Inc.
- Provides a range of indoor air quality services including investigations, testing and remediation.
- http://www.villaenv.com/

Safe Environmental Solutions, Inc.
- Promoting an environment free of disease-causing agents and educating customers with on-site or remote testing available.
- http://safeenvironmental.com/

Healthy Home
- Specializes in environmental inspections with remediation of specific individual indoor air quality problems.
- http://www.healthyhomesinc.com/

IBS
- Provides design and site engineering for heating, HVAC, public health, and refrigeration as well as repayment calculation for hydronic radiant cooling systems combined with HVAC systems.
- http://www.ib-schleifenbaum.com/

Environmental Restoration
- Offers disaster recovery guidance for properties damaged by fire, smoke, water, wind and other perils in the Eastern USA.
- http://www.iaqteam.com/

EHS Innovators
- Testing services for indoor air quality analysis and industrial hygiene compliance are offered.
- http://www.ehsi.com/

Indoor Air Solutions, Inc.
- Features an Indoor Air Quality (IAQ) testing and diagnostic firm of certified indoor air quality professionals.
- http://www.endotoxins.com/

Quality Environmental Services
- Offers Indoor Air Quality (IAQ) guidance for providing acceptable IAQ in commercial, industrial, & educational buildings.
- http://www.qualityenvironmental.com/

The Engineers Collaborative, Inc.
- Industrial ventilation consulting engineering services for dust control and vapor control.
- http://www.engcollab.com/

Criterion Labs
- Provides environmental testing and consulting regarding indoor air quality issues. Located in Pennsylvania, also serves New Jersey, Delaware and Maryland.
- http://www.criterionlabs.com/

MacNeil Environmental, Inc.
- Offers information about this environmental consulting company dealing with mold, asbestos, lead, carbon monoxide, and radon.
- http://www.mac-env.com/

Restoration Consultants
- Offers indoor environmental consulting services as well as training for mold remediation firms.
- http://www.restcon.com/

Princeton Analytical Laboratory
- Indoor air quality testing and industrial hygiene monitoring services are offered by this firm that operated in Pennsylvania, New Jersey, Delaware, and Maryland.
- http://yeeha.org/enterhtml/live/lab/index.html