Insights

Strategic Partnership Growth Leverage the merger with Salas O'Brien to position as a expanded Rocky Mountain region design and construction services provider, offering integrated structural engineering with broader architectural and facility planning capabilities to target office/retail, hospitality, education, and healthcare sectors seeking single-point coordination.

LEED and Green Building Highlight LEED design experience including Platinum and Gold projects to win sustainability-focused clients and projects pursuing green certifications, particularly in high-rise, education, and hospitality markets where energy efficiency and certification add value.

Technology Enabled Emphasize current tech stack and BIM workflow (REVIT with RAM Structure) to attract clients requiring modern analysis, rapid design iterations, and integrated collaboration, positioning for fast-tracked or complex projects with challenging schedules.

Project Delivery Excellence Promote single Principal-in-Charge model and responsive, timely communication to win clients who demand hands-on oversight, risk mitigation, and flexible scheduling on high-profile or time-sensitive projects such as high-rise, parking, or education facades.

Growth Through Acquisitions Leverage recent and ongoing Salas O’Brien acquisitions (engineering, lighting, automation, government contracting) to pitch expanded capabilities and turnkey solutions for clients considering consolidations, especially in government, industrial automation, and large multi-discipline projects.

The Leffler Group Tech Stack

The Leffler Group uses 8 technology products and services including HydroCAD, Revizto, Sucuri, and more. Explore The Leffler Group's tech stack below.

  • HydroCAD
    Cad & Graphics
  • Revizto
    Communication And Collaboration
  • Sucuri
    Content Delivery Network
  • Bentley
    Design
  • Cisco Application Centric Infrastructure
    Network Management
  • Windows 10
    Operating Systems
  • NIST Cybersecurity Framework
    Security
  • YouTube
    Video Players

Media & News

The Leffler Group's Email Address Formats

The Leffler Group uses at least 3 format(s):
The Leffler Group Email FormatsExamplePercentage
FLast@thelefflergroup.comJDoe@thelefflergroup.com
100%
First.Last@salasobrien.comJohn.Doe@salasobrien.com
96%
First@salasobrien.comJohn@salasobrien.com
2%
First.Middle@salasobrien.comJohn.Michael@salasobrien.com
2%

Frequently Asked Questions

What is The Leffler Group's phone number?

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You can contact The Leffler Group's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is The Leffler Group's official website and social media links?

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The Leffler Group's official website is salasobrien.com and has social profiles on LinkedIn.

How much revenue does The Leffler Group generate?

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As of July 2026, The Leffler Group's annual revenue is estimated to be $1M - $10M.

What is The Leffler Group's SIC code NAICS code?

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The Leffler Group's SIC code is 8711 - Engineering Services NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does The Leffler Group have currently?

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As of July 2026, The Leffler Group has approximately 13 employees across 2 continents, including North AmericaEurope. Key team members include Chief Executive Officer: P. O. B.Owner: T. L.Managing Director: G. O.. Explore The Leffler Group's employee directory with LeadIQ.

What industry does The Leffler Group belong to?

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The Leffler Group operates in the Civil Engineering industry.

What technology does The Leffler Group use?

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The Leffler Group's tech stack includes HydroCADReviztoSucuriBentleyCisco Application Centric InfrastructureWindows 10NIST Cybersecurity FrameworkYouTube.

What is The Leffler Group's email format?

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The Leffler Group's email format typically follows the pattern of FLast@thelefflergroup.com. Find more The Leffler Group email formats with LeadIQ.

When was The Leffler Group founded?

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The Leffler Group was founded in 2001.
The Leffler Group logo

The Leffler Group

Civil EngineeringColorado, United States11-50 Employees

The Leffler Group, a civil engineering firm based in Lakewood, Colorado, operates in the design and construction realms, offering structural engineering services to projects across the Rocky Mountain Region and the western United States. Following its merger with Salas O'Brien, the firm emphasizes a close, principal-led project approach, delivering personalized management, design, coordination, and administration to address the needs of diverse developments in sectors such as office, retail, high-rise, residential, hospitality, education, healthcare, and more. The organization highlights its ability to provide creative structural solutions, support for LEED design, and up-to-date modeling and analysis, aiming to meet demanding schedules and complex conditions. 

As part of the broader Salas O'Brien network, the firm positions itself within a nationwide, multidisciplinary engineering and facility planning landscape, leveraging a local footprint and expanded capabilities to serve clients with integrated design and engineering needs. The recent association with Salas O'Brien aligns the firm with other industry partnerships and ongoing collaborations, signaling a broader platform while maintaining its regional focus and project-oriented service model.

Section iconCompany Overview

Phone number
SIC Code
8711 - Engineering Services
NAICS Code
237 - Heavy and Civil Engineering Construction
Founded
2001
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    The Leffler Group's revenue is estimated to be in the range of $1M - $10M

Section iconFunding & Financials

  • $1M - $10M

    The Leffler Group's revenue is estimated to be in the range of $1M - $10M

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