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Environmental Science International [ESI] is a locally-owned, full-service environmental consulting firm located in Kailua, Hawaiʻi. We specialize in environmental assessment, investigation, remediation, planning, and management. Our focus is on the balance between preservation of the environmental integrity of the land and support to industry and development. Our clients include land owners, industrial firms, petroleum companies, developers, federal and state government agencies, law firms, real estate companies, construction and engineering companies, contractors, and private homeowners.

NAICS Codes: 541620 (primary), 541330, 541690, 541712, 561330, and 562910.

Our Philosophy and Core Values

Our core values reflect a corporate philosophy centered on honesty, quality, and respect for the environment. Our goal is to provide clients with superior-quality services, and we are committed to treating our clients, the regulated community, and the regulatory community with honesty and integrity.

We believe in and have successfully developed long-term relationships with our clients. In many respects, we view our client relationships as partnerships. It is our responsibility and obligation to act in their best interests.

We value our relationship with state regulators. We have enjoyed working closely with State of Hawaiʻi Department of Health personnel for many years and have developed relationships that are built on mutual respect and trust. It is our responsibility to work with them honestly and to maintain that trust and respect.

Having strong local ties, we endeavor to balance the realities of modern development and industry with traditional values of stewardship of the land.

Company History

We are a locally-owned and locally-managed small business that was incorporated in Hawaiʻi in 2001. Starting with three employees, we opened our first office in Kailua. Over time, we moved into a series of larger offices, all in Kailua, to accommodate our growing staff, finally settling into our current office space in 2009.

Initially, our work came from the commercial and industrial sectors. Following our acceptance into the Small Business Administration 8(a) program in 2003, our work was nearly evenly divided between federal contracts and the commercial and industrial sectors. In 2012, we graduated successfully from the 8(a) program.

We have continued to grow from our original three employees and currently have 21 full-time employees. Our work also expanded and has come to include contracts from the Hawaiʻi State government in addition to our federal, commercial, and industrial clients.

Certifications and Memberships

·         Self-certified Small Business

  • Hawaii Chamber of Commerce

  • Hawaii Asphalt Paving Industry [HAPI]

  • Building Industry Association [BIA-Hawaii]

  • Institute of Hazardous Materials Management [IHMM]

  •  American Society for Quality [ASQ]

  • U.S. Green Building Council [USGBC]

  • Society for Science

Chamber of Commerce Cert_2022_.jpg


Having strong local ties, we endeavor to balance the realities of modern development and industry with traditional values of stewardship of the land.

  • 2007 Administrator's Award for Excellence - U.S. Small Business Administration

  • 2008 Region IX Prime Contractor of the Year - U.S. Small Business Administration

  • 2006 Hawaiʻi Fastest 50 No.3 - Pacific Business News

  • 2007 Hawaiʻi Fastest 50 No.15 - Pacific Business News

  • 2009, 2010, & 2011 Excellence in Safety Award - ConocoPhillips

  • 2009 Recipient Occupational Excellence Achievement Award - National Safety Council


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