Daniel O'Connell's Sons

What Daniel O'Connell's Sons does

Daniel O'Connell's Sons is a fourth-generation, employee-owned construction management and general contracting firm headquartered in Holyoke, Massachusetts, operating in the New England regional market. Founded in 1879, the firm serves public and private sector clients across multiple verticals including education, water and wastewater treatment, government and civic, commercial and manufacturing, healthcare/athletic/senior living, and transportation. The company operates as part of The O'Connell Companies umbrella and runs a subsidiary, Catalyst Innovation Group, focused on innovation and technological advancement in construction delivery.

The firm's service offering spans construction management, general contracting, lean project delivery, self-perform work, and sustainability consulting. Its project portfolio includes institutional clients such as Amherst College, municipal infrastructure projects for the City of Westfield (notably a 3.75 MGD water treatment plant), government facilities including Massachusetts State Police barracks, manufacturing facilities for Rakks Manufacturing, and pump station work such as the York Street Pump Station. The company employs 101–250 people and supports a regional New England operation with project-based contract delivery.

Revenue is generated through negotiated and competitively bid construction contracts across both public and private sectors, with work spanning new construction, modernization, and infrastructure. The employee-owned governance model aligns leadership and project-staff incentives with long-term project quality and client relationships, supporting the firm's continuous operation for over 140 years in a competitive regional construction market. The company does not disclose revenue, funding history, or M&A activity in the available data.

Name

Daniel O'Connell's Sons

Legal name

Daniel O'Connell's Sons

Website

https://oconnells.com

Company type

Private

Founded year

1879

Operating status

Operating

Headcount range

101–250 employees

Short description

Daniel O'Connell's Sons is a 140+ year, employee-owned construction management and general contracting firm based in Holyoke, Massachusetts, serving public and private sector clients across New England in education, water/wastewater treatment, government, commercial, healthcare, and transportation sectors.

Ownership category

akta.pro rank

Headquarters

HQ city

Holyoke

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

Revenue model

1. Construction Contracting Services: DOC generates revenue through construction management and general contracting services on a project-by-project basis. Revenue is derived from construction fees on awarded projects across multiple market sectors including education, healthcare, water/wastewater treatment, commercial, and government facilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Daniel O'Connell's Sons (DOC) is a private construction firm providing construction management, general contracting, lean project delivery, self-perform work, and sustainability services. It serves institutional, commercial, civic, and infrastructure clients primarily across New England from its base in Holyoke, Massachusetts.

Product overview

Daniel O'Connell's Sons (DOC) is a construction management and general contracting firm offering a portfolio of integrated construction services. The core offerings include Construction Management and General Contracting as primary service lines, supplemented by Lean Project Delivery, Self-Perform Work, and Sustainability services. The company operates across multiple market sectors including Athletic Facilities, Culture & Civic, Commercial, Education, Healthcare & Life Sciences, Residential & Senior Living, Transportation, Water Treatment, and Wastewater Treatment. Projects range from building renovations (Aliki Perroti and Seth Frank Lyceum) to infrastructure (Dry Bridge Road Water Treatment Plant, York Street Pump Station) to commercial facilities (Rakks Manufacturing Facility).

Differentiator

Problem solved

Functional benefit

Products and services

• Construction Management
• General Contracting
• Lean Project Delivery
• Self-Perform Work
• Sustainability Services

Named customers5 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• The O'Connell CompaniescoreOthersParent company affiliation. DOC operates as part of The O'Connell Companies enterprise, with copyright notice showing '© 2026 The O'Connell Companies'. This represents corporate family affiliation rather than a commercial partnership.

Scale indicators2 records

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Suffolk Construction: Boston-based national construction manager and general contractor operating across commercial, healthcare, education, and life sciences. A larger, more diversified incumbent competing with DOC in core Northeast markets, but with broader geographic reach and deeper resources.
• Gilbane Building Company: Providence-headquartered, family-owned construction management and general contracting firm with a national footprint. Overlaps DOC in education, healthcare, government/civic, and water/wastewater treatment, but operates at significantly greater scale.
• Skanska USA: Global construction and development firm with a significant Boston office competing in education, healthcare, transportation, and water infrastructure across New England. A broad incumbent overlapping DOC's verticals at a much larger scale.

Direct peers

• Cutler Associates: Massachusetts-based construction manager and general contractor with comparable size, regional New England footprint, and focus on institutional, healthcare, and senior living clients. Closely comparable on service model and target verticals.
• Bond Brothers: Massachusetts-based construction management and contracting firm with strong self-perform capabilities across civil, water/wastewater, and building work. Comparable to DOC on regional New England focus and water/wastewater treatment exposure.
• Colantonio Inc. Massachusetts-based general contractor and construction manager of comparable size to DOC, serving institutional, municipal, healthcare, and educational clients. Directly comparable on regional focus, project size, and self-perform capabilities.
• Consigli Construction Co., Inc. Massachusetts-based, family/employee-influenced construction manager and general contractor with a similar multi-generational history, comparable headcount band, and overlapping verticals in higher education, healthcare, cultural/civic, and life sciences throughout New England.
• Shawmut Design and Construction: Boston-headquartered construction management and general contracting firm serving commercial, institutional, education, healthcare, and cultural clients in the Northeast. Closely comparable to DOC on size, regional footprint, service mix (CM, GC, self-perform), and target verticals.
• Lee Kennedy Company: Boston-area construction manager and general contractor serving corporate, healthcare, education, and life sciences clients. Comparable to DOC in regional footprint, service mix, and target institutional verticals, with similar size band.
• Windover Construction: Massachusetts-based construction manager and general contractor with a comparable focus on academic, healthcare, senior living, and commercial projects in New England. Direct peer on size, regional scope, and self-perform philosophy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Daniel O'Connell's Sons