What Meridian Consultants does

Meridian Consultants, LLC is a privately held environmental consulting firm founded in March 2012 by Tony Locacciato and Mark Austin in Westlake Village, California. The firm specializes in California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) compliance, providing Environmental Impact Report (EIR) and Environmental Impact Statement (EIS) preparation, technical studies in air quality and greenhouse gases, noise studies and modeling, mitigation monitoring and reporting, water resource evaluations, GIS and mapping services, peer review, and litigation support. Its underlying technology stack consists of industry-standard environmental modeling tools — CalEEMod and AERMOD for air quality, SoundPLAN and the FHWA Traffic Noise Model for noise, and Aviation Environmental Design Tool — applied by senior planners and field monitors rather than proprietary software platforms. The firm operates with approximately 10 staff, including three partners/principals, project managers, technical staff, and administrative operations.

Meridian serves five primary customer segments across California: private developers, local government agencies, state and federal agencies, educational institutions, and transportation authorities. Marquee engagements include environmental documentation for the $585 million LAX Automated People Mover, ongoing EIR and noise monitoring for Coachella and Stagecoach Music Festivals (Goldenvoice), environmental review for Compton Unified School District, and planning work for Los Angeles County. Across these segments the firm has completed roughly 634 projects representing approximately $20.85 million in cumulative contract value, with private-sector work representing the largest share by contract value.

The firm generates revenue through project-based professional services fees on multi-year contracts, with pricing quoted per engagement and not publicly disclosed. Go-to-market is sales-led and direct, using a proposal request form on the company website, LinkedIn presence, and a project portfolio showcasing public and private sector wins. In 2024, Meridian was acquired by Trinity Consultants, a larger environmental consulting firm, and continues to operate under the Meridian brand while becoming part of the Trinity portfolio.

Name

Meridian Consultants

Legal name

Meridian Consultants, LLC.

Website

https://meridianconsultantsllc.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

Meridian Consultants is a California-based environmental consulting firm providing CEQA and NEPA compliance services, including EIR/EIS preparation, air quality and noise modeling, and mitigation monitoring. Founded in 2012 and acquired by Trinity Consultants in 2024, it serves private developers, government agencies, schools, and transportation authorities across California.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620), Other Scientific and Technical Consulting Services (541690), Testing Laboratories and Services (54138)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Environmental Compliance & Permitting (BPAHAJAA)

akta.pro secondary industries

EIA/ESIA Documentation & Technical Studies (Air/Water/Noise/Traffic) (EUAHAAAC), Air Quality & Emissions Management (BPAHAJAI), EHS Auditing, Inspections & Assurance (BPAHAJAG), Permitting, Siting & Environmental Impact (EIA/NEPA) Advisory (EUAMANAB)

Keywords

• Environmental impact reports
• CEQA compliance consulting
• Air quality assessments
• Noise impact studies
• Mitigation monitoring services

Headquarters

HQ city

Westlake Village

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional consulting fees for environmental planning, CEQA/NEPA compliance documentation, technical studies, and environmental monitoring services. Revenue generated through project-based engagements for government agencies and private sector clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Meridian Consultants is an environmental consulting firm providing CEQA and NEPA compliance services in California. The firm prepares Environmental Impact Reports (EIRs), Environmental Impact Statements (EISs), and supporting technical studies including air quality, greenhouse gas, noise, health risk, and water resource assessments. It also delivers mitigation monitoring, GIS/mapping, planning compliance documentation, peer review, and litigation support services to government agencies, private developers, educational institutions, and transportation authorities.

Product overview

Meridian Consultants is an environmental consulting firm providing comprehensive compliance services under CEQA and NEPA. The firm operates as a unified service offering rather than a platform-plus-modules architecture. Core services include Environmental Impact Reports (EIR) and Environmental Impact Statements (EIS) preparation, supplemented by specialized technical studies including Air Quality & Greenhouse Gas Assessments, Noise Studies & Modeling, Health Risk Assessments, and Mitigation Monitoring & Reporting. Additional services encompass GIS & Mapping, Water Resource Evaluations, Initial Studies/MNDs/NDs preparation, Planning & Environmental Compliance documentation, Peer Review Services, Litigation Support, and Shade and Shadow Studies. The firm serves diverse market sectors including private developers, local governments, state/federal agencies, education institutions, and transportation projects throughout California.

Differentiator

Problem solved

Functional benefit

Products and services

• Environmental Impact Reports (EIR)

Quantifiable outcome

• Total of 634 projects completed across all segments
• +1 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Trinity ConsultantsmajorStrategic or Co-development PartnerMeridian Consultants has joined Trinity Consultants through an acquisition. Trinity Consultants is a larger environmental consulting firm. This acquisition represents Meridian becoming part of a larger organization while maintaining their brand identity.

Scale indicators11 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Ascent Environmental: California-based environmental and planning consulting firm providing CEQA/NEPA documentation, technical studies, and mitigation monitoring services overlapping Meridian's core practice.
• ESA (Environmental Science Associates): Large California-based environmental consulting firm specializing in CEQA/NEPA documentation, environmental planning, and technical studies with similar public and private sector clients.
• SWCA Environmental Consultants: National environmental consulting firm with strong California presence delivering CEQA/NEPA documentation, air quality and noise studies, permitting, and biological services comparable to Meridian's offerings.
• Rincon Consultants: California-based environmental and planning consulting firm providing CEQA/NEPA documentation, biological resources, cultural resources, and air quality/noise studies directly comparable to Meridian's core services.
• Dudek: California-focused environmental and engineering consulting firm delivering CEQA/NEPA compliance, biological and cultural resources, water resources, and air quality services, closely matching Meridian's CEQA-heavy portfolio.
• LSA Associates: California-based planning, environmental, and engineering consulting firm providing CEQA/NEPA services, air quality, and noise studies directly comparable to Meridian's portfolio.
• PlaceWorks: California-focused planning, design, and environmental consulting firm providing CEQA documentation, General/Specific Plans, and air quality/noise services similar to Meridian's local-agency work.

Broad incumbents

• Trinity Consultants: National environmental, EHS, and regulatory compliance consulting firm that acquired Meridian Consultants in 2024; offers air quality, permitting, and sustainability services overlapping Meridian's California CEQA/NEPA practice at significantly greater scale.
• AECOM: Global infrastructure consulting firm with a major environmental planning practice that competes for large CEQA/NEPA, transportation (e.g., LAX-adjacent), and infrastructure documentation work in California.
• ICF International: Large global consulting firm with a substantial environmental practice covering CEQA/NEPA, air quality, climate, and regulatory advisory—competing on larger integrated engagements in California.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/meridian-consultants-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Meridian Consultants