Groen Construction

What Groen Construction does

Groen Construction Inc. is a privately held, family-owned commercial general contractor headquartered at 120 Washington Street in Rochester, New Hampshire. Founded on June 19, 2000 by Fenton Groen alongside his sons David and Joseph (with brother Warren joining in 2002), the company has operated continuously for 25 years. In 2021, Groen made a strategic decision to focus exclusively on commercial construction, exiting residential work entirely. The firm serves the New England region (NH, MA, VT, ME, CT) and delivers design-build, pre-construction, and construction management services for projects typically valued between $2 million and $15 million.

Groen's defining technical specialization is Insulated Concrete Forms (ICF) construction, primarily using Nudura-branded ICF systems. ICF is a foam forming system where two-sided blocks are stacked, reinforced with rebar, and pumped full of concrete, with the forms remaining in place to provide continuous insulation, structural support, and an integrated air/moisture barrier. Groen delivers full-service ICF capabilities across building shells, floor systems, foundations, and specialty applications such as ICF retaining walls, and has decades of experience integrating ICF with structural steel, conventional framing, and mechanical systems. The company adopted ICF technology in 2001 and holds certifications across multiple ICF branded systems, supporting its positioning as the "premier ICF contractor in the Northeast."

The company generates revenue through project-based fixed-price or cost-plus contracts for commercial clients across five primary verticals: Municipal & Public Safety (e.g., Bristol, Farmington, and Henniker public safety buildings), Mixed-Use & Multi-Family Development (e.g., 55 N Main, The Howard), Healthcare & Medical Facilities (e.g., Frisbee Memorial Hospital, AP Dermatology), Commercial Office & Retail (e.g., 120 Washington Place, WORD Radio, Millican Nurseries), and Industrial & Manufacturing (e.g., Turbocam). GTM is direct enterprise field sales with custom quote-based pricing per project scope. Operations are managed on the Procore construction management platform, adopted in 2020 across all projects. The company has 11-50 employees, no institutional funding, and remains under family ownership.

Name

Groen Construction

Legal name

Groen Construction Inc.

Website

https://groenconstruction.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Short description

Groen Construction is a family-owned commercial general contractor and ICF (Insulated Concrete Forms) specialist based in Rochester, NH, serving New England clients across municipal, healthcare, industrial, commercial, and mixed-use sectors with $2-15M design-build and construction management projects.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Nonresidential Building Construction (2362), Industrial Building Construction (23621)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

Keywords

• Commercial construction services
• Design-build construction
• Construction management
• ICF construction
• Pre-construction services

Headquarters

HQ city

Rochester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Commercial Construction Services: Project-based commercial construction services including design-build, pre-construction services, and construction management. Project values typically range from $2 million to $15 million. Revenue is generated through fixed-price contracts or cost-plus arrangements for commercial, municipal, industrial, healthcare, and multi-family residential projects across New England.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Groen Construction is a commercial general contractor and Insulated Concrete Forms (ICF) specialist offering three core service lines: Design-Build, Pre-Construction Services, and Construction Management. The company provides full-service ICF construction including building shells, floor systems, and foundations, serving as both general contractor and ICF subcontractor across New England with project values ranging from $2 million to $15 million.

Product overview

Groen Construction is a commercial general contractor and ICF (Insulated Concrete Forms) specialist offering three core services: Design-Build, Pre-Construction Services, and Construction Management. The company specializes in ICF construction technology, providing both as a general contractor and subcontractor. Projects are organized into five categories: Municipal & Public Safety Buildings, Mixed-Use & Multi-Family Development, Healthcare & Medical Facilities, Commercial Office & Retail Buildings, and Industrial & Manufacturing Facilities. The company serves clients across New England with project values ranging from $2 to $15 million.

Differentiator

Problem solved

Functional benefit

Products and services

• Design-Build Services
• Pre-Construction Services
• Construction Management
• ICF Construction Services

Quantifiable outcome

• ICF buildings achieve dramatically lower utility bills due to high R-value walls and low air infiltration
• +4 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators5 records

Recent moves10 records

Expansion highlights4 records

Direct peers

• Dellbrook|JKS: New England commercial GC providing design-build, preconstruction, and construction management across commercial, healthcare, multi-family, and senior living — directly comparable service offering and regional focus.
• Windover Construction: Massachusetts-based commercial GC and construction manager delivering design-build, preconstruction, and virtual design services across commercial, healthcare, higher education, and multi-family in New England — a strong comparable in size, geography, and integrated service model.
• Consigli Construction Co. Family-owned, multi-generational commercial GC headquartered in Massachusetts serving New England with design-build, construction management, and self-perform capabilities across academic, healthcare, corporate, and multi-family. Highly comparable business model, regional footprint, and family culture to Groen.
• Tocci Building Corporation: Massachusetts-headquartered commercial GC with design-build and construction management services in New England, with particular emphasis on sustainable and energy-efficient construction — closely aligned with Groen's ICF-driven value proposition.
• Callahan Construction: Bridgewater, MA-based commercial GC with design-build and construction management services across commercial, healthcare, senior living, and institutional clients throughout New England — comparable scale, region, and service mix.
• Commodore Builders: Waltham, MA-based commercial GC focused on commercial, healthcare, and life sciences projects in New England with design-build and construction management services. Closely comparable in size, geography, and vertical mix to Groen.
• Shawmut Design and Construction: Boston-based commercial GC delivering design-build, CM, and self-perform services across commercial, healthcare, education, and hospitality in the Northeast. Overlaps with Groen in service mix and geography and competes for similar mid-to-large institutional clients.

Broad incumbents

• Whiting-Turner Contracting Company: Large national commercial GC with a substantial New England presence delivering design-build and construction management across commercial, healthcare, industrial, and public-sector work. Comparable service set but operates at materially greater scale than Groen.
• Suffolk Construction: One of the largest privately held U.S. commercial GCs with significant New England presence, executing design-build and construction management across commercial, healthcare, and mixed-use verticals at much larger scale. Comparable in service offering (design-build, CM) but materially larger and broader than Groen.

Regional players

• D.F. Pray: Seekonk, MA-based commercial GC with design-build and self-perform capabilities serving Southern New England in commercial, industrial, and institutional markets. Comparable mid-sized family/privately held GC operating in the same regional footprint.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@GroenConstruction
• Facebookfacebook.com/groenconstruction
• Instagraminstagram.com/groenconstructioninc
• LinkedInlinkedin.com/company/groenconstruction

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Groen Construction