What Sterling Construction does

Sterling Construction is a privately held specialty construction firm founded in 2016 and headquartered in Boxborough, Massachusetts. The company provides pre-construction, design-assist, and construction management services for projects that take place inside operating hospitals, active research laboratories, mission-critical infrastructure, and occupied institutional environments. Its four formal service lines are Healthcare Construction, Science + Technology Construction, Facility Infrastructure, and Institutional Construction, each addressing the regulatory and operational constraints of occupied or highly regulated settings such as ILSM/ICRA compliance, BSL laboratories, clean rooms, vivariums, and phased campus work.

The firm's customer base is concentrated in Massachusetts and spans major health systems (Mass General Brigham, Emerson Hospital, Newton-Wellesley, UMass Memorial Health, MelroseWakefield, Tufts Medicine, Optum, Southcoast Health), biotech and life sciences companies (Shape Therapeutics, Biognosys, Jnana Therapeutics, Curis, Catamaran Bio, Ensoma, Abveris/Twist Bioscience), academic institutions (Regis College, UMass Chan Medical School, UMass Lowell), and commercial property owners (Related Beal). Differentiators cited include team credentials such as AHA Certified Health Care Constructor and ASHE Certified Health Care Physical Environment Worker designations, founder-level trade expertise (electrician and carpentry backgrounds), and a track record of repeat engagements.

Sterling Construction operates a sales-led, project-based business model. Revenue is generated through one-time construction project fees rather than recurring contracts, with pricing quoted per engagement based on scope and complexity. The company markets itself through its website, project portfolio, and client testimonials, and delivers services via direct project engagement. It is independently owned by founders Andrew Colameta (President) and Nathan Pfleegor (Vice President) with no disclosed institutional investors, parent company, or external funding, and maintains a single-state geographic footprint.

Name

Sterling Construction

Legal name

Sterling Construction

Website

https://sterlingconstruct.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Sterling Construction is a Massachusetts-based specialty construction firm providing pre-construction, design-assist, and construction management services for healthcare systems, life sciences companies, academic institutions, and commercial property owners requiring work in occupied or highly regulated environments.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Commercial and Institutional Building Construction (236220), Nonresidential Building Construction (2362)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Operative Builders (1531)

akta.pro primary industry

Office & Corporate Building Construction (IMAFACAA)

akta.pro secondary industry

Government & Civic Building Construction (Courthouses, City Halls, Public Safety) (IMAFACAF)

Keywords

• Healthcare construction services
• Life sciences construction
• Occupied environment construction
• Facility infrastructure upgrades
• Pre-construction services

Headquarters

HQ city

Boxborough

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Others

Revenue model

1. Construction Services: Sterling Construction generates revenue through construction project fees for healthcare, science & technology, facility infrastructure, and institutional projects. Revenue is project-based, typically one-time fees for completed construction work rather than recurring contracts.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Sterling Construction is a Massachusetts-based construction firm that delivers pre-construction, design-assist, and general contracting services for healthcare, life sciences, facility infrastructure, and institutional clients. The company specializes in complex construction inside occupied and operating environments such as hospitals, active research laboratories, vivariums, and mission-critical buildings, applying ILSM and ICRA compliance protocols where required. Engagements are project-based and delivered directly to enterprise and institutional clients throughout Massachusetts.

Product overview

Sterling Construction is a Massachusetts-based construction firm offering specialized construction services across four primary service areas: Healthcare Construction, Science + Technology Construction, Facility Infrastructure, and Institutional Construction. The company focuses on complex, occupied environments including hospitals, research laboratories, and institutional facilities. The company was founded in 2016 by Andrew Colameta and Nathan Pfleegor and is headquartered in Boxborough, MA.

Differentiator

Problem solved

Functional benefit

Products and services

• Healthcare Construction Services Construction and renovation services for healthcare facilities, including hospitals, medical offices, imaging centers, cancer treatment facilities, emergency departments, and clinical support spaces. Specializes in occupied healthcare environments with ILSM and ICRA compliance, and serves clients such as Mass General Brigham, Emerson Hospital, UMass Memorial Health, and Newton-Wellesley Hospital.
• Science + Technology Construction Services Construction of advanced scientific and technology-driven environments, including biotechnology laboratories, BSL labs, clean rooms, cold rooms, vivariums, and research facilities. Delivered for clients such as Shape Therapeutics, Biognosys, Jnana Therapeutics, Curis, Catamaran Bio, and Ensoma.
• Facility Infrastructure Services Building systems construction including mechanical, electrical, and plumbing upgrades, fire protection systems, structural improvements, central utility plant upgrades, HVAC modernization, power distribution, building automation, and energy sustainability improvements.
• Institutional Construction Services Construction services for academic medical centers, higher education campuses, teaching and research laboratories, student health centers, simulation facilities, and campus infrastructure for universities and institutions, including projects for Regis College, UMass Chan Medical School, UMass Lowell, and Mansfield Qualters Middle School.

Named customers24 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Turner Construction: One of the largest U.S. GCs with a national healthcare and life sciences portfolio. Competes for large-scale hospital and lab projects in Boston and across the Northeast, though serves a much broader market.
• Gilbane Building Company: Large national construction manager with a deep healthcare and life sciences practice and strong Northeast presence. Operates at a much larger scale but competes for many of the same hospital, lab, and academic clients.
• Structure Tone: National construction manager with established healthcare, science & technology, and commercial interiors practices. Operates at greater scale than Sterling but competes for similar specialty interior and lab build-out work.
• Skanska USA: Global construction and development firm with a major healthcare and life sciences practice, including significant Boston-area work. Larger and more diversified, but a direct competitor for complex institutional projects.
• Suffolk Construction: Boston-headquartered national GC with a large healthcare, life sciences, and academic practice across the Northeast. Significantly larger scale but actively pursues the same institutional and occupied-environment work Sterling targets.

Direct peers

• BOND Brothers: Medford, MA-based construction manager with deep healthcare and life sciences practices, including occupied hospital work and lab construction. Highly comparable vertical mix and regional footprint to Sterling.
• Shawmut Design and Construction: Boston-headquartered national GC with significant healthcare, life sciences, and commercial practices across the Northeast. Comparable client mix and project complexity profile, though at a meaningfully larger scale.
• J. Calnan & Associates: Massachusetts-based construction manager specializing in corporate, life sciences, and academic environments with a strong occupied-buildout practice. Closely overlaps Sterling's science & technology and institutional verticals.
• Commodore Builders: Waltham, MA-based construction manager serving commercial, healthcare, and life sciences clients in the Greater Boston market. Comparable regional specialty contractor profile and project type mix.
• Consigli Construction: New England-based construction manager with established healthcare, life sciences, and academic portfolios in Massachusetts. Directly competes for the same regional institutional and healthcare clients.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sterling Construction