What Trileaf Corporation does

Trileaf Corporation is a private, founder-led environmental services and architecture/engineering firm founded in May 1993 by T. Scott Muschany and Todd Prevette and headquartered in St. Louis, Missouri. The firm operates across three service divisions: Environmental Due Diligence (Phase I and II Environmental Site Assessments, Property Condition Assessments, asbestos and lead inspections, indoor air quality testing, SBA RSRA compliance, transaction screen assessments, UST investigations, and M&A due diligence); Architecture and Engineering (as-built site surveys using Reality Capture/3D modeling, architectural design, construction documents, permitting, ADA compliance, and structural engineering); and Regulatory Compliance (NEPA reviews, cultural resources management, migratory bird evaluations, and wetland delineation). All field work is performed by full-time employees rather than subcontractors, using a 19-office coast-to-coast footprint and standardized reporting processes developed across 90,000+ completed sites in all 50 U.S. states, Canada, Guam, and Puerto Rico.

Trileaf serves two primary verticals. Its telecommunications segment (AT&T Mobility, T-Mobile, Dish, Ericsson) drives high-volume NEPA compliance, structural mount analysis, and site acquisition support for network infrastructure, including 5G mmW deployments. Its commercial/retail segment serves SBA lenders (Citizens Bank, Bank of Colorado, Fidelity Bank, Edward Jones, First Commonwealth Bank), insurance carriers (Old Republic), convenience and retail chains (Circle K, Sally Beauty, DoorDash), fitness operators (Anytime Fitness), and real estate firms (Jacobs, Tillman), with environmental due diligence, ADA compliance, and architectural design for property transactions and tenant improvements. The firm is licensed to provide architecture and engineering services in 47 states and maintains established State Historic Preservation Officer relationships across all 50.

The revenue model is professional services on a project basis. Trileaf prices engagements at lump-sum unit rates that include travel expenses with no mileage surcharges, uses pay-as-you-go billing on standardized products like RiskCheck Basic (1-2 business day delivery) and RiskCheck Plus (2-3 business day delivery), and quotes custom scope on Phase I ESAs, PCAs, and A&E work with standard 10-15 business day turnarounds. Go-to-market is sales-led and consultative, with industry-specific Client Groups assigning dedicated project managers as Single Points of Contact who respond within the hour. Customer acquisition relies on direct relationships, website request forms, LinkedIn presence, and client referrals rather than paid advertising or formal channel partnerships. The company has remained privately held under founder/CEO T. Scott Muschany since inception with no disclosed institutional investors or private equity sponsorship.

Name

Trileaf Corporation

Legal name

Trileaf Corporation

Website

https://trileaf.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

101–250 employees

Short description

Trileaf Corporation is a private environmental, architecture, and engineering firm serving telecommunications carriers, commercial banks, and retail developers with environmental due diligence, NEPA compliance, and architectural design services across the U.S. and Canada.

Ownership category

akta.pro rank

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services - Environmental Due Diligence: Project-based fees for Phase I/II Environmental Site Assessments, Property Condition Assessments, asbestos/lead inspections, IAQ testing, UST investigations, SBA compliance reports, and transaction screen assessments. Services delivered by full-time employees with lump-sum pricing that includes travel expenses.
2. Architecture and Engineering Services: Fees for architectural design, construction documents, structural engineering, permitting, as-built site surveys, jurisdictional due diligence, and ADA compliance assessments. Focus on small-to-medium-sized projects with volume-based efficiency.
3. Regulatory Compliance Services: NEPA compliance reports, migratory bird evaluations, cultural resources management, and wetland delineation/permitting. Specialized services for telecommunications industry requiring federal/state regulatory compliance.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Trileaf Corporation is a specialized environmental, architecture, and engineering firm that delivers large volumes of small-to-medium-sized projects for telecommunications carriers and commercial market sectors across the U.S. and Canada. Services span three divisions: Architecture & Engineering (site surveys, architectural design, construction documents, permitting, ADA compliance, structural engineering), Environmental Due Diligence (Phase I/II ESAs, PCAs, asbestos/lead/IAQ inspections, SBA RSRA, transaction screen assessments, UST investigations), and Regulatory Compliance (NEPA, cultural resources, migratory bird evaluations, wetland delineation). All field work is performed by full-time in-house professionals under lump-sum unit pricing with travel included.

Product overview

Trileaf Corporation is a specialized environmental, architecture, and engineering firm offering integrated services across three divisions: Architecture & Engineering (As-Built Site Survey, Architectural Design, Construction Documents, Permitting, Accessibility/ADA Compliance, Structural Engineering, Jurisdictional Due Diligence), Environmental Due Diligence (Phase I & II Environmental Site Assessments, Property Condition Assessments, Asbestos/Lead-Based Paint Inspections, Indoor Air Quality/Mold Inspections, Mergers and Acquisitions Due Diligence, SBA Compliance/RSRA, Transaction Screen Assessments, Underground Storage Tank Investigation), and Regulatory Compliance (NEPA Compliance, Cultural Resources Management, Migratory Bird Evaluations, Wetland Delineation and Permitting). The company operates coast-to-coast with 19 locations across the US and Canada, completing over 90,000 sites and offering services to telecommunications, commercial banking, retail development, SBA lenders, REITs, convenience stores, and developers.

Differentiator

Problem solved

Functional benefit

Products and services

• Jurisdictional Due Diligence Comprehensive jurisdictional due diligence service to assess permit requirements and regulatory compliance for projects, whether standalone or part of a larger scope, offered to developers and network operators.
• As-Built Site Survey Site surveying service utilizing Reality Capture and 3D modeling technology, performed by full-time architectural site surveyors conducting 2,500+ site surveys annually across the U.S. and Canada.
• Architectural Design Multi-disciplinary architectural design service with a focus on proactive challenge identification and fast, cost-effective turnkey solutions for multi-site portfolios in retail, commercial, and telecom use cases.
• Construction Documents Construction document preparation service using NCARB architects with jurisdictional plan review experience, producing over 4,230 construction drawings annually for tenants and operators.
• Permitting Permit expediting service with full-time, in-house permit expeditors who submit applications and track jurisdiction responses within 15 business days for commercial, retail, and telecom clients.
• Accessibility | ADA Compliance ADA compliance assessment service covering California Chapter 11 accessibility code, federal ADA compliance, and customer experience enhancement, having completed over 7,529 ADA compliance surveys across 50 states.
• Structural Engineering Full suite of structural engineering services including wireless telecommunications mount and structural analysis, solar installations, and structural modification, with over 1,849 mount and structural analyses completed.
• Phase I & II Environmental Site Assessments Gold standard environmental site assessments under EPA's All Appropriate Inquiries rule per CERCLA, with Phase II ESAs triggered when Recognized Environmental Conditions are identified; over 33,000+ Phase I ESAs completed.
• Property Condition Assessments (PCA) Industry-leading property condition assessments following ASTM E2018 standard for lenders, investors, developers, and banks, with over 25,000 PCAs completed and 10-15 business day turnaround.
• Asbestos and Lead-Based Paint Inspections Inspection service for asbestos and lead-based paint prior to renovation, demolition, or property transactions, including building plan review, sampling strategy development, and sample analysis.
• Indoor Air Quality and Mold Inspections (IAQ) On-demand IAQ testing service for employee health and liability management, with over 600 projects completed and Indoor Air Quality Association membership.
• Mergers and Acquisitions Due Diligence Environmental review service for portfolios ranging from 13 to 3,000 sites, capable of completing large portfolio assessments in less than 30 days.
• SBA Compliance | Records Search with Risk Assessment (RSRA) RiskCheck Plus and RiskCheck Basic environmental compliance services fulfilling SBA SOP requirements, including review of five critical historical environmental sources and federal/state database review with 1-3 business day turnaround.
• Transaction Screen Assessments (TSA) Environmental due diligence evaluation meeting ASTM Standard Practice E1528 requirements for low-risk projects where a full Phase I ESA is not warranted.
• Underground Storage Tank (UST) Investigation Full suite of UST investigation services including tank pulls, closures, and LUST and remediation monitoring; an original Trileaf service dating back to 1993.
• NEPA (National Environmental Policy Act) Compliance Preeminent NEPA permitting service with over 26,000 reports completed across all 50 states and 2 US territories, including endangered species research, tribal consultation, and Section 106 Review.
• Cultural Resources Management Cultural resources management including Phase I-II archaeological work, SHPO and Tribal consultation, NRHP nominations, architectural surveys, GIS mapping, and balloon testing; over 3,500 projects completed.
• Migratory Bird Evaluations Ground-based migratory bird evaluation service with high-powered spotting scope and digiscoping photo documentation, including Eagle Nest Take permit applications; over 21,887 evaluations completed.
• Wetland Delineation and Permitting Wetland delineation services to determine the landward boundary of regulated wetlands through background research and on-site evaluation of soil, plants, and hydrologic features.

Quantifiable outcome

• 90,000+ sites completed across every state, territory, and province in the U.S. and Canada
• +5 more outcomes

Named customers17 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators11 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Terracon Consultants, Inc. Terracon is a large U.S. employee-owned environmental, geotechnical, and facilities consulting firm providing Phase I/II ESAs, NEPA support, and architectural/engineering services to telecom, banking, retail, and real estate clients — a near-direct match to Trileaf's service mix and vertical focus.
• Partner Engineering and Science, Inc. Partner is a national environmental and building sciences consultancy offering Phase I/II ESAs, PCAs, SBA RSRAs, and architectural/engineering services to banking, retail, and telecom clients — overlapping Trileaf's full service portfolio in both environmental due diligence and turnkey A&E.
• EBI Consulting: EBI is a national environmental, building sciences, and consulting firm providing Phase I/II ESAs, NEPA, and telecom infrastructure compliance — directly comparable in vertical mix and small-to-medium project focus.
• Apex Companies, LLC: Apex is a national environmental consulting and engineering firm delivering Phase I/II ESAs, NEPA, cultural resources, and compliance services to telecom, banking, and commercial real estate clients — a direct counterpart in scope and customer base.

Broad incumbents

• GHD: GHD is a global engineering, environmental, and architecture consultancy with substantial U.S. environmental due diligence and telecom infrastructure practices — comparable services but at a larger, multi-region scale than Trileaf.
• Stantec: Stantec is a global design and consulting firm with environmental services, NEPA compliance, and architectural/engineering practices serving telecom, commercial real estate, and public-sector clients — overlapping Trileaf's portfolio but at much larger scale.
• AECOM: AECOM's Environment and Transportation practices deliver NEPA, ESA, and cultural resources services globally, including to major telecom carriers — broader-scale incumbent peer across Trileaf's regulatory-compliance and A&E lines.
• Jacobs Solutions Inc. Jacobs' Critical Mission Solutions and infrastructure consulting lines include environmental compliance, NEPA, and telecom/siting services — a broader incumbent with meaningful overlap in Trileaf's telecom and federal NEPA work.
• Bureau Veritas: Bureau Veritas is a global Testing, Inspection, Certification (TIC) and consulting firm whose environmental and asset-management lines address Phase I ESAs, PCAs, and ESG due diligence for lending and M&A — overlapping Trileaf's project-based due diligence but at global scale.

Emerging players

• Antea Group: Antea Group is a multi-national environmental, health, and safety consultancy with Phase I/II ESA, NEPA, and cultural resources capabilities serving telecom, banking, and industrial clients — a closely adjacent specialty peer.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/trileaf-corporation

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Trileaf Corporation