Insights

Growth Opportunity Veteran-owned small business with strong revenue and a broad services portfolio in electrical, mechanical, piping, and structural engineering suggests potential for targeted upsell into larger facilities and infrastructure projects where formal engineering support and energy conservation modifications are needed.

Sustainability Focus Specialization in green building design and energy conservation modifications aligns with market demand for sustainable retrofits and efficiency upgrades in commercial and critical facilities, presenting opportunities with energy managers and facilities directors.

Digital Collaboration Use of AutoCAD, SketchUp, Adobe Creative Suite and AIA contract documents indicates capability to deliver detailed design, visualization, and compliant engineering services, enabling collaborations on complex projects and fast-tracked bid responses.

Mid-market Target Revenue in the 25-50 million range and 11-50 employees positions LLI as a potential partner for mid-market projects where large firms may be less agile and where specialized engineering support is valued.

Strategic Partnerships Veteran-owned status combined with experience in critical facilities upgrades suggests potential for partnerships with government or defense-related facilities, as well as corporate clients seeking reliability and domain expertise in essential infrastructure projects.

Similar companies to LLI Engineering

LLI Engineering Tech Stack

LLI Engineering uses 8 technology products and services including AutoCAD, SketchUp, Squarespace, and more. Explore LLI Engineering's tech stack below.

LLI Engineering's Email Address Formats

LLI Engineering uses at least 4 email formats:
LLI Engineering Email FormatsExamplePercentage
FLast@lliengineering.comJDoe@lliengineering.com
93%
F.Last@lliengineering.comJ.Doe@lliengineering.com
3%
FirstL@lliengineering.comJohnD@lliengineering.com
2%
LastF@lliengineering.comDoeJ@lliengineering.com
2%

Frequently Asked Questions

What is LLI Engineering's phone number?

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You can contact LLI Engineering'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 LLI Engineering's official website and social media links?

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LLI Engineering's official website is lliengineering.com and has social profiles on LinkedIn.

How much revenue does LLI Engineering generate?

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As of September 2026, LLI Engineering's annual revenue is estimated to be $25M - $50M.

What is LLI Engineering's SIC code and NAICS code?

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LLI Engineering's SIC code is 8711 - Engineering Services and NAICS code is 5413 - Architectural, Engineering, and Related Services.

How many employees does LLI Engineering have currently?

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As of September 2026, LLI Engineering has approximately 45 employees across 3 continents, including North America, Asia and South America. Key team members include Managing Member: N. P., Vice President: J. B. and Controller: T. G. Explore LLI Engineering's employee directory with LeadIQ.

What industry does LLI Engineering belong to?

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LLI Engineering operates in the Engineering Services industry.

What technology does LLI Engineering use?

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LLI Engineering's tech stack includes AutoCAD, SketchUp, Squarespace, AIA Contract Documents, Squarespace Commerce, Microsoft 365, AfterPay and Adobe Creative Suite.

What is LLI Engineering's email format?

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LLI Engineering's email format typically follows the pattern of FLast@lliengineering.com. Find more LLI Engineering email formats with LeadIQ.

When was LLI Engineering founded?

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LLI Engineering was founded in 1910.
LLI Engineering logo

LLI Engineering

Engineering ServicesPennsylvania, United States11-50 Employees

LLI Engineering is a veteran-owned engineering services firm based in Pittsburgh, Pennsylvania, founded in 1910. The company provides multidisciplinary engineering support across electrical, mechanical, piping, and structural disciplines for commercial projects, critical facilities, and infrastructure upgrades. Its work encompasses green building design, energy conservation modifications, project engineering, and the preparation of engineering estimates. 

Serving clients that require facility and infrastructure upgrades, LLI focuses on delivering practical engineering solutions that enhance efficiency and resilience. In the engineering services landscape, the firm offers integrated design and analysis for a range of projects, supported by its project engineering and estimating capabilities. Based in Pittsburgh, Pennsylvania, the company operates as a small, veteran-owned business with a scope that includes commercial, critical facilities, and infrastructure initiatives.

Section iconCompany Overview

Phone number
SIC Code
8711 - Engineering Services
NAICS Code
5413 - Architectural, Engineering, and Related Services
Founded
1910
Employees
11-50

Section iconFunding & Financials

  • $25M - $50M

    LLI Engineering's revenue is estimated to be in the range of $25M - $50M

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