LLI Engineering Information

Founded in 1910 in Pittsburgh, Pennsylvania, LLI Engineering a veteran owned small business, specializes in commercial, critical facilities, infrastructure upgrades, Green building design, energy conservation modifications, project engineering, and engineering estimates. LLI provides electrical, mechanical, piping, and structural engineering services.

Website	http://www.lliengineering.com
Revenue	$13.7 million
Funding	$350000
Employees	45 (30 on RocketReach)
Founded	1910
Address	1501 Preble Ave Suite 300, Pittsburgh, Pennsylvania 15221, US
Phone	+1 412-904-4310
Fax	(412) 904-4385
Technologies	JavaScript , HTML , jQuery +8 more (view full list)
Industry	Engineering Services, Architecture, Engineering & Design, Electrical, Construction, Mechanical, Piping, And Structural Engineering Services, Sustainability, Data Center Design, Health Care Facilities
Web Rank	16 Million
Keywords	Building Design, Design Build, Project Engineering, Critical Facilities, Project Management, Infrastructure Upgrades, Energy Conservation, Engineering Consulting, Commercial Construction, Green Building, Energy Efficiency, Sustainable Design, Facilities Management, Infrastructure Consulting, Mechanical Engineering, Electrical Engineering, Civil Engineering, Construction Management, Structural Engineering, Environmental Engineering
Competitors	Jacobs, AECOM, Bechtel Corporation, KBR, Inc., Fluor Corporation, Worley Sweden, Amec Foster Wheeler, Tetra Tech, Hatch, VECO Engineering +41 more (view full list)
SIC	SIC Code 871 Companies, SIC Code 87 Companies
NAICS	NAICS Code 54133 Companies, NAICS Code 5413 Companies, NAICS Code 541 Companies, NAICS Code 54 Companies

LLI Engineering Questions

What is the annual revenue of LLI Engineering?

The LLI Engineering annual revenue was $13.7 million in 2026.

Who is the President and CEO of LLI Engineering?

Jamie White is the President and CEO of LLI Engineering.

How many people are employed at LLI Engineering?

30 people are employed at LLI Engineering.

Where is LLI Engineering based?

LLI Engineering is based in Pittsburgh, Pennsylvania.

What is the NAICS code for LLI Engineering?

The NAICS codes for LLI Engineering are [54133, 5413, 541, 54].

What is the SIC code for LLI Engineering?

The SIC codes for LLI Engineering are [871, 87].

Top LLI Engineering Employees

Jamie White

President and CEO at LLI Engineering

Pittsburgh, PA, US
2
- lliconstruction.com
- lliengineering.com
5+
- +1 412-491-XXXX
- +1 412-315-XXXX
- +1 484-241-XXXX
- +1 412-381-XXXX
- +1 412-381-XXXX
- +1 724-356-XXXX
James White

Director of Business Development at LLI Engineering

Pittsburgh, PA, US
2
- hotmail.com
- lliengineering.com
5+
- +1 717-235-XXXX
- +1 703-768-XXXX
- +1 412-315-XXXX
- +1 724-809-XXXX
- +1 724-356-XXXX
- +1 412-491-XXXX
Donald Jakiel

Project Manager and Professional Electrical Engineer at LLI Engineering

Aliquippa, PA, US
1
- lliengineering.com
3
- +1 412-580-XXXX
- +1 412-264-XXXX
- +1 412-773-XXXX
Donald Arsenault-Flachmeier

Electrical Department Manager and Senior Project Manager at LLI Engineering

Hampton Township, PA, US
3
- hotmail.com
- gmail.com
- lliengineering.com
3
- +1 407-578-XXXX
- +1 321-246-XXXX
- +1 407-595-XXXX
David Thon

Sr. Electrical Designer at LLI Engineering

Pittsburgh, PA, US
2
- gmail.com
- lliengineering.com
4
- +1 412-352-XXXX
- +1 412-823-XXXX
- +1 801-451-XXXX
- +1 412-999-XXXX
Kathlyn Knechtel

Mechanical Engineer at LLI Engineering

Pittsburgh, PA, US
1
- lliengineering.com
2
- +1 724-847-XXXX
- +1 724-847-XXXX
Robert Shrock

Commissioning Project Manager at LLI Engineering

Wexford, PA, US
2
- +1 412-315-XXXX
- +1 724-657-XXXX
Wake Wildman

Mechanical Engineer at LLI Engineering

Pittsburgh, PA, US
2
- lliengineering.com
- gmail.com
Angela Laurine

Project Manager at LLI Engineering

Pittsburgh, PA, US
2
- lliengineering.com
- gmail.com
3
- +1 321-626-XXXX
- +1 201-410-XXXX
- +1 973-427-XXXX
Richard McMillen

Senior Electrical Engineer at LLI Engineering

Wexford, PA, US
1
- lliengineering.com
3
- +1 724-745-XXXX
- +1 610-905-XXXX
- +1 626-269-XXXX