Environmental Science International

Name

Environmental Science International

Legal name

Environmental Science International, Inc.

Website

https://esciencei.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (541620), Engineering Services (541330), Engineering Services (54133), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Testing Laboratories (8734), Services-Engineering, Accounting, Research, Management (8700), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

All Appropriate Inquiries (AAI) & ASTM Phase I ESA (EUAHAEAA)

akta.pro secondary industries

EIA/ESIA Documentation & Technical Studies (Air/Water/Noise/Traffic) (EUAHAAAC), ESG, Sustainability & Impact Research (BPAHALAL), ESG Governance, Sustainability Reporting & Assurance Advisory (BPAHAFAJ)

Keywords

• Environmental site assessment
• Environmental remediation services
• Site investigation consulting
• Industrial hygiene consulting
• Environmental permitting services

Headquarters

HQ city

Kailua

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Environmental Consulting Services: Professional consulting fees for environmental assessment, investigation, remediation, planning, and management services delivered to government agencies, industrial companies, commercial businesses, and private homeowners. Services include Phase I/II environmental site assessments, CERCLA investigations, remediation design and oversight, hazardous materials surveys, and regulatory compliance support.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Core offering

Environmental Science International (ESI) is a Hawaii-based environmental consulting firm that conducts environmental site assessments, investigations, remediation, planning, and management for federal, state, industrial, and commercial clients. The firm specializes in CERCLA/RCRA regulatory compliance work and provides technical expertise in soil and groundwater contamination studies, asbestos and lead-based paint inspection, and environmental permitting for government and private-sector projects. ESI has grown from a three-person operation in 2001 to a 21-person professional services firm supporting clients throughout the Pacific region.

Product overview

Environmental Science International (ESI) is a locally-owned, full-service environmental consulting firm offering a unified suite of professional services rather than a software product platform. The company's service portfolio centers on environmental assessment, investigation, remediation, planning, and management. Core offerings include Environmental Assessment and Investigation Services (Phase I/II site assessments, remedial investigations, PFAS evaluations), Environmental Remediation (excavation, ozone injection, chemical oxidation, thermal desorption), Environmental Planning and Management (EAs, EISs, SPCC plans, SWPC plans), Federal Facilities and Superfund Services (CERCLA investigations, remedial actions), Due Diligence and Property Investigations (ASTM-compliant site assessments), Industrial Hygiene Services (lead/asbestos surveys, mold assessments), Environmental Permitting (NPDES, SMA, air permits), and Other Environmental Services (consultation, training, site restoration). These services work together as an integrated consulting practice addressing the complete lifecycle of environmental projects from initial assessment through remediation and regulatory closure.

Differentiator

Problem solved

Functional benefit

Products and services

• Environmental Site Assessment (ESA)
• Site Investigation and Remediation
• Environmental Planning and Management

Named customers12 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with a major Environment business line covering site assessment, remediation, and federal environmental services. Overlaps with ESI on DoD and large-scale CERCLA work but operates at enterprise scale across multiple service lines.
• Tetra Tech: Global environmental and engineering consulting firm with deep DoD, CERCLA, and water resources practices. Comparable as a direct competitor for federal environmental remediation and assessment task orders, though at vastly larger scale than ESI.
• Arcadis: International design and consultancy firm with a significant environmental remediation and site assessment practice. Comparable to ESI on CERCLA, RCRA, and industrial site work, though Arcadis serves a global client base with much greater geographic reach.
• GHD: Global engineering, architecture, and environmental consulting firm with significant Pacific operations. Comparable on environmental assessment, remediation, and federal infrastructure work and has active presence in Hawaiʻi and Guam.

Direct peers

• ERM (Environmental Resources Management): Pure-play global environmental, health, safety, and sustainability consultancy. Directly comparable service mix (site assessment, remediation, EHS compliance, due diligence) and competes for the same enterprise and federal clients as ESI.
• Haley & Aldrich: Environmental and geotechnical consulting firm specializing in site investigation, remediation, and risk assessment. Closely comparable in service model and customer profile (industrial, real estate, federal), though primarily mainland-based.
• SWCA Environmental Consultants: Environmental consulting firm offering environmental planning, permitting, NEPA studies, site assessment, and natural resource management. Comparable on Phase I/II ESA, environmental permitting, and federal/state regulatory work.
• Anchor QEA: Environmental and water resources consulting firm with strong sediment, remediation, and coastal/estuarine practice. Comparable in service portfolio (CERCLA, site assessment, remediation design) and competes in Pacific coastal markets.
• SLR Consulting: Global environmental and sustainability consultancy offering site investigation, remediation, due diligence, and EHS advisory. Comparable in mid-sized professional services model and federal/industrial client mix.
• EA Engineering, Science, and Technology: Mid-sized environmental and engineering firm focused on federal clients (DoD, EPA, civilian agencies) with core capabilities in site investigation, remediation, and compliance. Comparable in size, federal contracting orientation, and service mix.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Environmental Science International