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Browse the Top 18 Engineering Companies Serving New Hampshire

See what 18 engineering companies serving New Hampshire, including Portsmouth, Bedford and Concord, offer for technical design, consulting and project support. Read client feedback, explore company profiles and contact firms that match your engineering requirements.
Bedford (2)
Concord (1)
Gilford (1)
Hanover (1)
Hudson (1)
Lebanon (1)
Manchester (1)
Merrimack (1)
Portsmouth (3)
Rindge (1)
Rye (1)
Salem (1)
Somersworth (1)
Stratham (1)
Windham (1)
CSI Engineering
Featured
30 Years
Emergency
Not rated yet
CSI Engineering
30 Years
Emergency
Not rated yet
We have 39 years of experience in HVAC/mechanical engineering leadership
Since 1996, CSI Engineering has provided comprehensive MEP/FP design and consulting services to clients throughout New England and beyond. Our licensed engineers deliver tailored solutions for HVAC, electrical, plumbing, and fire protection systems.
HVAC Design Electrical Design Plumbing Design
Website (603) 319-8244 Call Profile
1 review
Sandford Surveying & Engineering
36 Years
1 review
We offer over 30 years of local expertise in New Hampshire land development projects.
Family-owned engineering firm offering land surveying, civil engineering, and environmental consulting services in southern New Hampshire since 1990.
Land Surveying Civil Engineering Environmental Engineering
(603) 472-6604 Call Profile
1 review
Higher Design
21 Years
1 review
We offer 18 years of local engineering expertise since 2005
Professional civil engineering and land planning services in Rindge, NH. Higher Design offers site development, septic design, and regulatory permitting expertise since 2005.
Civil Engineering Land Planning Septic System Design
(603) 899-0004 Call Profile
SCADD
23 Years
4 reviews
SCADD
23 Years
4 reviews
We offer 30+ years of structural engineering experience with nationwide licensing.
SCADD provides structural engineering services including steel connection design review, shop drawing analysis, and code compliance solutions for commercial and industrial projects across the U.S. and Canada.
Structural Steel Review Connection Calcs Review Field Work Calcs
(800) 912-9383 Call Profile
Not rated yet
Omni Components
Not rated yet
We have over 100 years of experience in precision metal manufacturing for medical devices.
Omni Components delivers precision metal components for medical devices, specializing in machining, stamping, and fabrication for over 100 years. Partner with us for reliable OEM solutions.
Precision Machining Sheet Metal Fabrication Medical Precision Metal Stamping
(603) 882-4467 Call Profile
Not rated yet
Comprehensive Environmental
Not rated yet
We have over 30 years of experience in environmental and civil engineering services.
Comprehensive Environmental Inc offers expert civil engineering and environmental remediation services for municipalities, industries, and federal agencies nationwide. Specializing in water infrastructure and asset management.
Environmental Remediation Civil Engineering Drinking Water Services
(603) 424-8444 Call Profile
Not rated yet
Bailey Associates
48 Years
Not rated yet
Family-owned since 1978 with three generations of surveying expertise
Family-owned land surveying, engineering, and environmental consulting firm serving New Hampshire since 1978. Expertise in boundary surveys, septic design, and regulatory compliance.
Land Surveying Civil Engineering Septic System Design
(603) 528-3734 Call Profile
Not rated yet
Creare
Not rated yet
We offer over 50 years of engineering experience.
For over 50 years, Creare's engineers have delivered innovative R&D solutions, bringing complex ideas from concept to deployment for government and corporate partners.
Signal Processing Cryogenic Systems Advanced Manufacturing
(603) 643-3800 Call Profile
Not rated yet
Optics 1
Not rated yet
We provide solutions for reconnaissance, surveillance, and targeting across diverse industries
Optics 1 delivers advanced electro-optic and navigation systems for defense, aerospace, and industrial applications from our Bedford, NH headquarters.
Thermal Imaging Systems Laser Rangefinding Modules Navigation Solutions
(603) 296-0469 Call Profile
Not rated yet
Altus Engineering
31 Years
Not rated yet
We have over 35 years of civil engineering experience with municipal projects
Altus Engineering offers civil engineering, site planning, and environmental permitting services in Portsmouth, NH. Expert solutions for residential, commercial, and municipal projects since 1995.
Site Development Roadway Engineering Stormwater Management
(603) 433-2335 Call Profile