Stanley D. Lindsey and Associates

What Stanley D. Lindsey and Associates does

Stanley D. Lindsey and Associates (SDL) is a privately held, full-service consulting structural engineering firm founded in 1966 by Dr. Stanley D. Lindsey in Nashville, Tennessee. The firm provides structural design, analysis, and consulting services for new construction, renovation, and disaster assessment projects across commercial, healthcare, education, industrial, hospitality, residential, mixed-use, government, and community/arts/sports sectors. Its core technology stack combines commercial software (Autodesk Revit, Navisworks, Dynamo, Tekla for BIM) with proprietary in-house analysis tools for finite element analysis, non-linear structural analysis, and material-specific engineering (steel, concrete, masonry, wood). A specialized Erection Engineering Division delivers construction planning, sequencing, and temporary/staged loading analysis for complex steel structures, with notable projects including the MSG Sphere and the 1982 World's Fair Sunsphere.

SDL operates a B2B professional services model, acquiring projects through direct client engagement with architects, owners, developers, and design-build contractors on long project cycles. The firm employs 101-250 people across four offices — Nashville (headquarters), Atlanta (regional, est. 1989), Charlotte (regional, acquired 2017), and Bangalore, India (international, opened 2024) — with engineers registered in 47 states plus DC, Puerto Rico, the US Virgin Islands, and Saskatchewan. Revenue is generated through project-based professional services fees, with pricing based on scope, complexity, and duration rather than publicly disclosed rate cards. The firm is led by President and Chairman Arvind Goverdhan, President and COO Mike Corrin, and CTO Travis Earls, and is committed to the SE 2050 Initiative targeting net-zero embodied carbon by 2050.

Name

Stanley D. Lindsey and Associates

Legal name

Stanley D. Lindsey and Associates, Ltd.

Website

https://sdlal.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

101–250 employees

Short description

Stanley D. Lindsey and Associates is a privately held structural engineering consulting firm founded in 1966, delivering structural design, analysis, erection engineering, and construction administration services for commercial, healthcare, education, and specialty building projects across four US and India offices.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

Keywords

• Structural engineering consulting
• Steel structure design
• Erection engineering services
• Construction administration services
• Structural analysis services

Headquarters

HQ city

Atlanta

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations

Revenue model

1. Structural Engineering Consulting: Professional consulting fees for structural design, analysis, and engineering services across commercial, healthcare, education, industrial, and specialty projects. Revenue is project-based with long sales cycles typical of A/E/C industry.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

SDL provides full-service structural engineering design and consulting for new construction, renovation, and disaster assessment across commercial, healthcare, education, industrial, and specialty structures. The firm operates a dedicated Erection Engineering Division that works with steel erectors, fabricators, and contractors on construction planning and sequencing for complex steel structures, complemented by construction administration services from concept through construction.

Product overview

Stanley D. Lindsey and Associates (SDL) is a structural engineering firm that provides a comprehensive suite of engineering services. The core offering consists of structural engineering design and consulting for new construction, renovation, and disaster assessment across commercial, healthcare, education, industrial, and specialty structures. The firm operates a dedicated Erection Engineering Division that works with steel erectors, fabricators, and contractors to develop construction planning and sequencing strategies. Construction Administration services support projects through the construction phase with field observations, technical reviews, and client liaison. SDL's services are delivered across four offices (Nashville, Atlanta, Charlotte, and Bangalore) by a team of registered engineers, with engineers licensed in 47 states, DC, Puerto Rico, US Virgin Islands, and Saskatchewan.

Differentiator

Problem solved

Functional benefit

Products and services

• Structural Engineering Design and Consulting Services Comprehensive structural engineering design and consulting for new construction, renovation, and disaster assessment across commercial, healthcare, education, industrial, and specialty structures. Delivered to architects, owners, developers, and design-build contractors.
• Erection Engineering Division Specialized consulting service that works with steel erectors, fabricators, and contractors to develop construction planning, sequencing, and erection strategies for the safe and efficient installation of complex steel structures (e.g., MSG Sphere).
• Construction Administration Services Services supporting projects during the construction phase, including job-site visits, structural observations, RFI and submittal reviews, and technical liaison among the firm, contractor, and owner.

Named customers5 records

Segments10 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• ArchitectscoreOthersCollaborates with architects as primary partners on structural engineering projects, working from concept through construction to deliver integrated structural solutions.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• WSP: Global professional services firm with a large structural and building engineering practice, including design-build/EPC adjacency. Comparable overlap on commercial, healthcare, and transportation-adjacent buildings but at mega-firm scale.
• Buro Happold: Global engineering consultancy with structural engineering as a major practice area alongside MEP and sustainability. Overlaps with SDL on complex building projects but offers broader multi-disciplinary services.
• Skidmore, Owings & Merrill (SOM): Architecture and engineering firm renowned for complex structural design on global landmark towers. Overlaps with SDL on architecturally ambitious, structurally innovative projects, but bundles architecture with engineering.
• Arup: Global multi-disciplinary engineering firm with prominent structural engineering practice on landmark buildings. Serves similar client base but at much larger scale and broader service portfolio.

Direct peers

• KPFF Consulting Engineers: Large US structural and civil engineering firm with employee-owned model and broad vertical coverage. Comparable in service mix and consulting-only delivery model, though substantially larger scale.
• Thornton Tomasetti: Large global structural engineering consultancy with marquee projects and dedicated construction engineering/erection services. Closest comparable to SDL in scale, technical depth, and Erection Engineering-style offerings, but operates at significantly larger scale internationally.
• DeSimone Consulting Engineers: Structural engineering consultancy serving commercial, residential, healthcare, and mixed-use markets with offices across the US. Closely comparable in service mix and project types to SDL.
• Walter P Moore: Mid-to-large US structural and civil engineering firm with deep sports, healthcare, and civic portfolio. Direct comparable in vertical mix, project scale, and engineering services model.
• Severud Associates: Long-established New York-based structural engineering firm with a similar decades-long track record and focus on creative structural design for complex commercial, healthcare, and institutional buildings.
• Wiss, Janney, Elstner Associates: Engineering consultancy with strong structural, forensic, and renovation practices, matching SDL's emphasis on existing structures, disaster assessment, and repair work alongside new design.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sdl_1966
• LinkedInlinkedin.com/company/stanley-d.-lindsey-&-associates

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries1 record

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 Stanley D. Lindsey and Associates