Henley-Johnston & Associates

Name

Henley-Johnston & Associates

Legal name

Henley-Johnston & Associates, Inc.

Website

https://henleyjohnston.com

Company type

Private

Founded year

1951

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Geotechnical Engineering and Construction Materials Testing Services

NAICS

Architectural, Engineering, and Related Services (5413), Testing Laboratories and Services (54138), Environmental Consulting Services (54162)

SIC

Services-Engineering Services (8711), Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Geotechnical Design, Engineering & Consulting (Analysis, Design, Peer Review) (IMAFAOAK)

akta.pro secondary industries

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB), Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing) (IMAFAOAG), Geotechnical Site Investigation & Engineering Geology (Borings, Lab Testing) (EUAHAFAE)

Keywords

• Geotechnical engineering services
• Construction materials testing
• Subsurface investigation drilling
• Foundation engineering consulting
• Environmental site assessment

Headquarters

HQ city

Dallas

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Engineering Consulting: Professional consulting services for geotechnical investigations, geological assessments, foundation design, slope stability analysis, and environmental site assessments. Services are project-based and typically billed per engagement or hourly rates.
2. Construction Materials Testing (CMT): Field and laboratory testing services for construction materials including concrete, soil, asphalt, and coatings. Services include field technicians, nuclear gauge testing, non-destructive testing, and inspection services.
3. Drilling Services: Subsurface geotechnical exploration using company-owned truck, track, and ATV mounted drilling rigs for soil sampling and rock coring.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Henley-Johnston & Associates is a Texas-based consulting firm that provides geotechnical engineering, construction materials testing, and drilling services to public and private sector clients. Services span subsurface investigations, foundation design, slope stability analysis, soil and rock laboratory testing, field and non-destructive testing of construction materials, Phase I environmental site assessments, and in-house drilling for soil sampling and rock coring. Work is delivered by licensed professional engineers, engineering geologists, and certified technicians under ASTM, AASHTO, TxDOT, and ASTM E-329 protocols from offices in Dallas and Austin.

Product overview

Henley-Johnston & Associates (HJA) is a geotechnical engineering and construction materials testing firm that operates as a service-based consulting practice, not a software product company. The firm offers three interconnected core service lines: (1) Geotechnical Engineering Services, which encompasses subsurface investigations, foundation design, slope stability analysis, and residential geotechnical consulting; (2) Construction Materials Testing (CMT), providing field and laboratory testing, non-destructive testing, and inspection services for concrete, soil, and structural components; and (3) Drilling Services for subsurface exploration. These services are supported by specialized laboratory testing capabilities and Phase I Environmental Site Assessments, all delivered through professional engineering staff and technicians certified by ACI, NICET, NACE, and other industry bodies.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Over 23,000 completed private and public projects
• +2 more outcomes

Named customers16 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered minor.

• Serre Poncon Dam (France)minorOthers · 1 January 1952International consulting on the construction of the Serre Poncon Dam in France in 1952.
• Alta Shopping Center (Sarajevo, Bosnia)minorOthersInternational consulting project for the Alta Shopping Center in Sarajevo, Bosnia.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• WSP: Global engineering consultancy (which absorbed Golder Associates) with significant Texas geotechnical and environmental practices. Competes on larger infrastructure and development programs where HJA's local expertise may still be a niche.
• ECS Group of Companies: Mid-Atlantic headquartered national geotechnical, environmental, and CMT firm that has expanded into Texas. Comparable service line-up (geotechnical, CMT, environmental) and similar project-based revenue model.
• Tetra Tech: Global consulting and engineering firm with water, environmental, and infrastructure practices including geotechnical services in Texas. Overlaps with HJA on environmental site assessments and infrastructure design-support work.
• S&ME: Southeast and Texas-based engineering firm offering geotechnical, CMT, and environmental services. Comparable to HJA across private and public-sector CMT work and is a likely competitor on regional infrastructure bids.
• Terracon Consultants: One of the largest national geotechnical, environmental, and CMT consultancies with a significant Texas practice. Comparable across every service line HJA offers but at much greater scale and broader geographic footprint.
• Kleinfelder: National engineering, construction services, and consulting firm with strong geotechnical and CMT capabilities and Texas offices. Directly competes with HJA on infrastructure, commercial, and public-sector projects while offering a wider portfolio.
• Braun Intertec: Employee-owned engineering consulting firm with strong geotechnical and CMT practice and growing Texas presence. Comparable services, professional certifications, and project-based consulting model.
• AECOM: Global infrastructure consulting firm with substantial Texas geotechnical and CMT capabilities. Overlaps with HJA on large transportation and municipal projects but at substantially greater scale and breadth.

Direct peers

• HVJ Associates: Houston-based geotechnical, CMT, and environmental engineering firm serving Texas municipal, transportation, and commercial clients. Direct peer in service offerings, Texas DOT certification, and mid-sized private-firm positioning.
• Raba Kistner: San Antonio-headquartered engineering and consulting firm offering geotechnical engineering, construction materials testing, environmental, and facilities services across Texas and the Southwest. Closest comparable in scale, geography, and service mix to HJA, including similar state DOT work and private developer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php

Compliance29 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Henley-Johnston & Associates