J.S. Held expands forensic accounting practice with the acquisition of HSNO. View press release.


Matthew Allen, CIH

Project Manager

202-822-4620 (Work)
202-304-8015 (Mobile)
1300 17th St. North, Suite 250
Arlington, VA 22209

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Matthew L. Allen has over 14 years of professional environmental consulting experience, focused in disciplines including: hazardous materials assessment and management, industrial hygiene, and Indoor air quality (IAQ).  Matthew has managed teams of industrial hygiene professionals as Senior Project Manager. He has provided industrial hygiene and environmental consulting services to a multitude of residential, commercial, and institutional clients. He has provided inspection and consultation services in relation to abatement of asbestos, lead, and mold hazards during major demolition and renovation projects. Matthew has managed and performed numerous IAQ investigations, fungal/moisture intrusion investigations/remediation designs, occupational exposure monitoring episodes, and hazardous materials inspections. He has been recognized as a Certified Industrial Hygienist (CIH) by the American Board of Industrial Hygiene (ABIH).

Matthew has expertise in: industrial hygiene, Occupational Safety and Health Administration (OSHA) compliance, indoor air quality, moisture management, and hazardous materials assessment and mitigation.