Emission Monitoring Service, Inc. (EMSI) is dedicated to providing a quality, compliant and cost effective monitoring program for our clients.



Emission Monitoring Service, Inc. (EMSI) values knowledge, which is why we want to provide you with helpful information in environmental compliance.



People First, Safety Always

"EMSI values safety. They're
committed to compliance and
devoted to customer service."



Earl Hassell
Chevron Phillips



"Very thorough - from field work to
record keeping to regulations."




Linda Salinas
Texmark

"Highly effective and very well
established procedures for
managing compliance.

Sherman Hampton
Exxon Mobil