Browse the Top 4 Engineering Companies Serving Portland, ME

Acorn Engineering is a 100% employee-owned firm providing comprehensive civil engineering, land surveying, and landscape architecture services across Maine. We offer specialized expertise in water resources, environmental solutions, and construction administration for mixed-use, residential, and transportation projects. Our integrated approach ensures that clients receive cohesive, technically sound, and environmentally responsible design and management from initial survey through project completion.

Wright-Pierce is a full-service civil and environmental engineering firm specializing in water resources, wastewater treatment, and municipal infrastructure. Established in 1947, we deliver sustainable, client-focused solutions across the Northeast and Southeast United States. Our multidisciplinary team combines technical expertise with a deep commitment to community and environmental well-being.

Criterium Engineers is a national engineering consulting firm specializing in building inspections, construction monitoring, and property assessments. Since 1957, we've provided licensed Professional Engineers to evaluate commercial, residential, and institutional properties across North America. Our services help clients understand building conditions, manage risks, and optimize maintenance strategies through technical expertise and clear communication.

Haley & Aldrich provides environmental and geotechnical engineering consulting services, specializing in complex site remediation, disaster resilience, and sustainable infrastructure solutions. With expertise in regulatory compliance and stakeholder engagement, we deliver tailored strategies for public and private sector clients nationwide. Our integrated approach combines technical innovation with operational efficiency to address environmental challenges and mitigate risks.