Soil Consultants
Soil Consultants, Inc. is a privately-held, women-owned professional services firm founded in 1951 in Charleston, South Carolina, providing geotechnical engineering, construction materials testing, special inspections, nondestructive testing, and contract drilling services to construction developers, contractors, and government transportation clients across South Carolina and portions of Georgia and North Carolina.
- Company typePrivate
- Founded1951
- HeadquartersCharleston, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Soil Consultants does
Soil Consultants, Inc. (SCI) is a privately-held, women-owned professional services firm headquartered in Charleston, South Carolina, providing geotechnical engineering and construction materials testing services since its founding in 1951. The firm operates five integrated service lines: Geotechnical Engineering (subsurface investigation, foundation design recommendations, seismic site classification, liquefaction assessment, settlement analysis, and pavement design); Construction Materials Testing (field observations, field testing, and laboratory testing of aggregate, asphalt, concrete, masonry, metals, and soil); Special Inspections (IBC Chapter 1 and Chapter 17 compliance inspections by ICC-certified inspectors); Nondestructive Testing (radiography, ultrasonic, magnetic particle, dye penetrant, and visual inspections, including in-house shooting cell and darkroom facilities); and Contract Drilling (soil sampling, rock coring, monitor well installation, and cone penetration testing using truck-mounted, track-mounted, ATV, marsh buggy, tripod, and skid-steer equipment).
The underlying technology is anchored by an AASHTO-accredited and USACE-validated materials testing laboratory, a diverse drilling fleet capable of operating on land, near-shore, marsh, and over-water sites, and in-house radiography development and viewing facilities. Service delivery relies on certified personnel holding credentials from ICC, AWS, ACI, NICET, SCDHEC, SCDOT, SCLLR BCC, with ASNT Level III oversight for nondestructive testing work.
The business model is project-based, B2B professional services revenue priced on a quote-per-engagement basis, with no disclosed subscription or recurring component. Customers include design teams for hospital, education, bridge, roadway, utility, transmission, commercial, mixed-use, and residential construction projects, plus government transportation entities (primarily SCDOT and adjacent state DOT work). Distribution is direct, through project-by-project engagement rather than intermediaries, supported by word-of-mouth reputation, a basic company website, and a modest LinkedIn/Facebook presence. The geographic service area covers all of South Carolina and portions of Georgia and North Carolina. Leadership stewardship transitioned in 2001 from founder Wm. Kenneth Johnson, PE (1951–2001) to current president M. Brian Johnson.
Soil Consultants firmographics
Firmographics- Name
- Soil Consultants
- Legal name
- Soil Consultants, Inc.
- Website
- https://soilconsultantsinc.com
- Company type
- Private
- Founded year
- 1951
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Soil Consultants, Inc. is a privately-held, women-owned professional services firm founded in 1951 in Charleston, South Carolina, providing geotechnical engineering, construction materials testing, special inspections, nondestructive testing, and contract drilling services to construction developers, contractors, and government transportation clients across South Carolina and portions of Georgia and North Carolina.
- Ownership category
- akta.pro rank
Soil Consultants industry classification
Industry- Product category
- Geotechnical Engineering Services
- NAICS
- Testing Laboratories and Services (54138), Testing Laboratories and Services (541380), Environmental Consulting Services (54162)
- SIC
- Services-Testing Laboratories (8734)
- akta.pro primary industry
- Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)
- akta.pro secondary industries
- Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing) (IMAFAOAG), Geotechnical Site Investigation & Engineering Geology (Borings, Lab Testing) (EUAHAFAE)
Keywords
Where Soil Consultants is headquartered
LocationHeadquarters
- HQ city
- Charleston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Soil Consultants business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Infrastructure, Operations, Marketing or Sales
Revenue model
- Geotechnical Engineering Services: Project-based engineering consulting services for subsurface investigation, foundation design recommendations, seismic analysis, liquefaction assessment, and pavement design for construction and development projects.
- Construction Materials Testing: Quality assurance and quality control testing services for construction materials including field observations, monitoring, testing, and laboratory analysis to verify material properties and conformance with project specifications.
- Contract Drilling Services: Borehole drilling, soil sampling, rock coring, and monitor well installation/abandonment services for site investigation projects using various drilling methods and equipment.
- Nondestructive Testing Services: Certified NDT services including radiography, ultrasonic, magnetic particle, dye penetrant, and visual inspections for weld quality assurance and structural compliance verification.
- Special Inspections: IBC Chapter 1 and Chapter 17 compliance inspections for concrete, fireproofing, foundations, masonry, soils, steel construction, wood construction, and building, electrical, mechanical, and plumbing components.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
Soil Consultants product offering
Product offeringCore offering
Soil Consultants, Inc. provides geotechnical engineering and construction materials testing services for construction and development projects. Services include subsurface investigation, foundation design recommendations, seismic and liquefaction analysis, field and laboratory testing of construction materials (aggregate, asphalt, concrete, masonry, metals, soil), IBC Chapter 1 and Chapter 17 special inspections, nondestructive testing of welds and structures, and contract drilling for soil sampling, rock coring, and monitor well installation across land, near-shore, and over-water sites.
Product overview
Soil Consultants, Inc. is a full-service, women-owned geotechnical engineering and construction materials testing firm offering five integrated service lines: Geotechnical Engineering (subsurface investigation and engineering evaluation), Construction Materials Testing (field and laboratory testing for aggregate, asphalt, concrete, masonry, metals, and soil), Special Inspections (IBC Chapter 1 and Chapter 17 compliance inspections), Nondestructive Testing (weld inspection and materials testing services), and Contract Drilling (geotechnical drilling with various equipment for challenging terrain). The firm operates an AASHTO-accredited laboratory and provides services throughout South Carolina and portions of Georgia and North Carolina.
Differentiator
Problem solved
Functional benefit
Products and services
- Geotechnical Engineering
Companies that use Soil Consultants
Customer profileSegments2 records
Ideal customer profiles2 records
Soil Consultants technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Soil Consultants partnerships and signals
Strategic signalScale indicators2 records
Recent moves5 records
Expansion highlights3 records
Soil Consultants competitors and assessment
Company assessmentMarket position
Competitive moat4 records
Key risks2 records
Key highlights6 records
Customer concentration
Soil Consultants social profiles
Digital presenceSoil Consultants compliance and trust
Trust signalCompliance10 records
Soil Consultants financial estimates
Financial estimateRevenue estimate
Valuation estimate
Soil Consultants leadership team
Management profileNumber of profiles
Profiles1 record
Soil Consultants funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Soil Consultants M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Soil Consultants
What does Soil Consultants do?
Soil Consultants, Inc. provides geotechnical engineering and construction materials testing services for construction and development projects. Services include subsurface investigation, foundation design recommendations, seismic and liquefaction analysis, field and laboratory testing of construction materials (aggregate, asphalt, concrete, masonry, metals, soil), IBC Chapter 1 and Chapter 17 special inspections, nondestructive testing of welds and structures, and contract drilling for soil sampling, rock coring, and monitor well installation across land, near-shore, and over-water sites.
Is Soil Consultants a public or private company?
Soil Consultants is a private company. It is classified as family owned and is currently operating.
When was Soil Consultants founded?
Soil Consultants was founded in 1951. It employs 11 to 50 people.
Where is Soil Consultants based?
Soil Consultants is headquartered in Charleston, United States, in the North America region.
How does Soil Consultants make money?
Five revenue lines are on record. Geotechnical Engineering Services are the primary driver. The others are construction Materials Testing, contract Drilling Services, nondestructive Testing Services and special Inspections.
Does Soil Consultants have an API?
No public API is recorded for Soil Consultants.
What industry is Soil Consultants in?
Soil Consultants's product category is Geotechnical Engineering Services. Its primary akta.pro industry code is BPAHAIAB, Geotechnical & Subsurface Engineering Consulting, with a secondary code of IMAFAOAG, Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing). Its NAICS code is 54138 and its SIC code is 8734.