Mostardi Platt

What Mostardi Platt does

Mostardi Platt is a US-based, independent environmental services firm founded in 1976 and headquartered in Elmhurst, Illinois. The company delivers air emissions testing, continuous and predictive emissions monitoring (CEMS/PEMS), air permitting and modeling, water and wastewater compliance, site assessment and remediation, EHS consulting, and occupational health and safety services to industrial and commercial clients nationwide. It operates from 11 office locations across the United States and has executed projects in more than 45 states plus Canada and Puerto Rico, with primary demand from power generation, manufacturing (cement, steel, glass, food processing), real estate development, and increasingly data center operators.

Underlying capability is built on EPA Reference Method accreditations (Methods 1-5, 17, 25, 25A, 3A, 6C, 7E, 10, 30B) and a fleet of mobile laboratories that perform on-site source testing and ambient monitoring. The firm employs Board Certified Environmental Engineers, licensed Professional Engineers and Geologists, and QSTI-certified staff. Its proprietary technology asset is CMP (Compliance Management Process), a cloud-based EHS compliance management platform that schedules tasks, assigns responsibility, and tracks site-specific compliance performance.

Revenue is generated through project-based professional services contracts, ongoing CEMS/PEMS managed-service retainers, and CMP software subscriptions, sold predominantly via direct enterprise field sales supported by regional office coverage and a self-serve CMP portal. The firm became a portfolio company of Incline Equity Partners in January 2025 and acquired DSG Solutions in November 2025 to extend CEMS/DAHS expertise and add Massachusetts and Washington offices. Customer segments are horizontal across 10+ regulated industries, with no individual customer concentration disclosed.

Name

Mostardi Platt

Legal name

Mostardi Platt

Website

https://mostardiplatt.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

101–250 employees

Short description

Mostardi Platt is an independent US environmental services firm providing air emissions testing, CEMS/PEMS monitoring, permitting, site remediation, and EHS compliance consulting to industrial, power generation, manufacturing, and data center clients across 11 offices nationwide.

Ownership category

akta.pro rank

Product category

Environmental Consulting and Testing Services

NAICS

Testing Laboratories and Services (54138), Environmental Consulting Services (54162)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Continuous Emissions Monitoring Systems (CEMS) & Stack Testing (EUAHADAA)

akta.pro secondary industry

Stack/Source Emissions Testing & CEMS Support (EUAHACAB)

Keywords

• Environmental consulting services
• Air emissions testing
• EHS compliance management
• Continuous emissions monitoring
• Site assessment remediation

Headquarters

HQ city

Elmhurst

HQ country

United States

HQ region

North America

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional consulting services including EHS compliance audits, air and water permitting, environmental site assessments, remediation planning, and regulatory compliance management for industrial and commercial facilities
2. Air Emissions Testing Services: On-site source testing and continuous emissions monitoring services for compliance demonstration, utilizing EPA Reference Methods and mobile laboratory capabilities
3. CEMS/PEMS Services: Continuous Emissions Monitoring Systems installation, maintenance, repair, calibration, and consulting services for emission monitoring compliance
4. Compliance Management Process (CMP) Subscription: Cloud-based software-as-a-service subscription for EHS compliance management with task scheduling and performance tracking capabilities

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Mostardi Platt is an environmental testing and consulting firm that delivers air emissions testing, EHS compliance consulting, permitting, water and wastewater services, site assessment and remediation, and continuous emissions monitoring (CEMS/PEMS) for industrial and commercial clients. The firm also licenses a proprietary cloud-based software platform, the Compliance Management Process (CMP), for environmental health and safety task scheduling and tracking. Services are delivered through 11 U.S. regional offices using EPA Reference Methods, mobile laboratories, and a staff of certified engineers and geologists.

Product overview

Mostardi Platt is a full-service environmental consulting firm offering a comprehensive portfolio of services organized into five main categories: Air (emissions testing, permitting, modeling, and monitoring), Water (storm water, wastewater, SPCC, and PFAS), Land (remediation, energy development, and waste management), Compliance (audits, corrective actions, ISO services), and Health & Safety. The company also provides a proprietary cloud-based software platform called the Compliance Management Process (CMP) for EHS compliance management. Services are delivered through 11 office locations nationwide, and the company has expanded through strategic acquisitions including DSG Solutions in 2025.

Differentiator

Problem solved

Functional benefit

Brands

• CMP (Compliance Management Process): A secure, cloud-based tool that streamlines EHS compliance by tailoring task schedules, assigning responsibilities, and tracking performance.

Products and services

• Air Emissions Testing Services Comprehensive air emissions testing services including source testing, continuous monitoring, ambient air monitoring, and compliance reporting for industrial facilities.
• Air Permitting Air quality permitting services helping facilities obtain and maintain required permits for air emissions under federal and state regulations.
• Air Quality Modeling Dispersion modeling and analysis services to predict air quality impacts and demonstrate regulatory compliance.
• Ambient Air Monitoring Monitoring of ambient air quality using real-time sensors and monitoring stations to assess environmental conditions.
• Continuous Emissions Monitoring Systems (CEMS & PEMS) Installation, maintenance, and monitoring services for continuous emissions monitoring systems (CEMS) and predictive emissions monitoring systems (PEMS) at industrial facilities.
• Water/Wastewater Services Storm water management, facility response planning, SPCC plans, wastewater compliance, and PFAS testing services.
• Land/Remediation Services Site assessment, remediation, energy project development, and waste management including hazardous waste reporting.
• Compliance Management Process (CMP) Secure, cloud-based EHS compliance management tool that streamlines environmental health and safety compliance by tailoring task schedules, assigning responsibilities, and tracking performance to meet site-specific needs.
• EHS Compliance Consulting Environmental health and safety consulting including compliance audits, corrective action plans, ISO services, and regulatory documentation support.
• Health & Safety Services Workplace health and safety services including safety audits, OSHA compliance, noise exposure testing, chemical compliance, and onsite support.

Quantifiable outcome

• Over 40 years of EPA regulatory experience with senior staff
• +1 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves13 records

Expansion highlights6 records

Direct peers

• Trinity Consultants: Trinity Consultants is a leading U.S. environmental consulting firm specializing in air quality, EHS compliance, and permitting — directly comparable to Mostardi Platt's air emissions testing, permitting, and CEMS services for industrial clients.
• Montrose Environmental Group: Montrose provides environmental testing, advisory, and air quality services to industrial and commercial clients across the U.S., closely mirroring Mostardi Platt's stack testing, CEMS support, and multi-disciplinary environmental consulting offering.
• Antea Group: Antea Group is a global EHS consulting firm providing environmental permitting, compliance, site assessment, and health & safety services to industrial clients — a comparable mid-sized peer with similar service mix to Mostardi Platt.
• SLR Consulting: SLR Consulting is an environmental and EHS advisory firm offering air quality, permitting, compliance auditing, and remediation services to industrial clients — comparable in service mix and mid-market positioning to Mostardi Platt.

Broad incumbents

• ERM (Environmental Resources Management): ERM is one of the world's largest pure-play environmental, health, safety, and sustainability consultancies, offering air permitting, site assessment, and compliance services that overlap with Mostardi Platt's portfolio but at significantly greater global scale.
• AECOM: AECOM's Environment business provides air quality, permitting, remediation, and EHS services globally; a much larger incumbent whose industrial air services compete with Mostardi Platt on multi-site enterprise accounts.
• Jacobs Solutions: Jacobs' Critical Mission Solutions and PA Consulting-adjacent environmental practices deliver air permitting, emissions testing support, and remediation services to industrial and government clients at global scale.
• GHD: GHD is a global engineering, architecture, and environmental consulting firm with U.S. air quality, EHS compliance, and water services that overlap with Mostardi Platt's multi-disciplinary practice.
• Ramboll: Ramboll's Environment & Health division provides air quality, permitting, contaminated site, and EHS consulting services to industrial clients, comparable to Mostardi Platt but at significantly larger scale and global footprint.
• Burns & McDonnell: Burns & McDonnell is a large U.S. engineering firm whose Environmental Services division delivers air permitting, emissions compliance, and remediation services to power and industrial clients, competing with Mostardi Platt on enterprise accounts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/mostardi-platt-338828462796701
• LinkedInlinkedin.com/company/mostardi-platt-environmental

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Mostardi Platt