What Graycor does

Graycor is a privately held, family-founded construction services company headquartered in Oakbrook Terrace, Illinois, that has operated continuously since 1921. The firm delivers general contracting, design-build, self-perform construction, integrated project delivery (IPD), preconstruction, MEP coordination, and proprietary "Live Environment" construction for occupied facilities. Its service portfolio is organized across ten market sectors, with primary focus on manufacturing, advanced facilities, logistics and distribution, and power and gas, supported by corporate, retail, healthcare, entertainment, hospitality, and cultural practices. The company maintains regional offices in Phoenix, Portage (IN), Charlotte, Raleigh, Chicago, and San Jose, and operates across the U.S., Canada, and Mexico.

The company's underlying technical capabilities center on BIM/VDC-enabled preconstruction, in-house craft professionals for concrete, steel erection, and interior build-out (including ASME-certified piping and modularization at its Portage fabrication shop), and a Zero Punchlist quality methodology. Revenue is generated through project-based fixed-price, cost-plus, and construction management contracts spanning ground-up construction, renovations, complex facility upgrades, industrial maintenance, and self-perform specialty installations. Marquee clients include Amazon (30+ projects across 15 states over two decades), BMW, Bosch, Siemens Mobility, Fujifilm Diosynth, Marriott, Wieland, Duke Energy, U.S. Steel, Ford, Northrop Grumman, and Simon Property Group. Strategic positioning emphasizes "hard jobs" that other contractors decline, including phased construction in operational environments and technically demanding industrial modernization projects.

Graycor operates through three core subsidiaries — Graycor Construction Company Inc., Graycor Industrial Constructors Inc., and Graycor Southern Inc. (acquired/formed via the 2013 Southeast Boiler & Rigging integration and rebranded in 2018) — plus legacy units Nitti Graycor and Capitol Construction Services. The company is led by CEO Dave Wing, who in December 2024 became the first non-Gray family CEO after joining the firm in 1991. Graycor has stated publicly that it is "journeying toward $1 billion in annual revenue" under Wing's leadership, and has been named an ENR Top 250 International Contractor and a six-time consecutive ABC Top Performer through 2025.

Name

Graycor

Legal name

Graycor Inc.

Website

https://graycor.com

Company type

Private

Founded year

1921

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Graycor is a 100+ year-old, privately held U.S. construction services firm delivering general contracting, design-build, self-perform construction, and industrial maintenance across manufacturing, advanced facilities, logistics, power, retail, and commercial sectors for enterprise clients.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Specialty Trade Contractors (238), Building Equipment Contractors (2382), Electrical Contractors and Other Wiring Installation Contractors (23821), Utility System Construction (2371)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Electrical Work (1731)

akta.pro primary industry

Self-Performing General Contractors (IMAFAAAI)

akta.pro secondary industries

Industrial/Process Plant General Contracting (IMAFAAAH), Construction Management (Agency/Owner’s Rep) (IMAFAAAC), Energy & Renewables Specialty Contracting (Solar PV, Storage, EV Charging) (IMAFALAJ)

Keywords

• General contracting services
• Design-build construction
• Industrial construction services
• Construction management services
• Commercial construction contractor

Headquarters

HQ city

Oak Brook

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. General Contracting Services: Full-service general contracting combining over a century of experience with modern innovation for ground-up construction, renovations, and complex facility upgrades across manufacturing, retail, distribution, energy, and data center sectors. Revenue is earned through fixed-price contracts, cost-plus contracts, and construction management arrangements.
2. Design-Build Services: Design-build contracting providing single-source responsibility with collaborative delivery, maximizing cost-effectiveness, streamlining schedules, and managing quality craftsmanship and on-site safety. Revenue generated through design-build contract arrangements.
3. Self-Perform Construction: Self-performing construction services delivering complex piping, equipment installations, structural steel fabrication, and ASME code work through in-house craft professionals, providing revenue from direct trade labor and specialty installation services.
4. MEP Coordination Services: Mechanical, electrical, plumbing, and fire protection systems integration services delivering critical systems that make facilities operate safely, efficiently, and reliably.
5. Industrial Maintenance Services: Industrial maintenance service offerings including ongoing facility maintenance and support, providing recurring revenue from established client relationships in power, industrial, and process markets.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

Graycor is a 100+ year general contractor providing full-service construction delivery including general contracting, design-build, self-perform construction, preconstruction, integrated project delivery (IPD), live environment construction, and MEP coordination. The firm delivers ground-up construction, renovations, adaptive reuse, and complex facility upgrades across manufacturing, advanced facilities, logistics & distribution, power & gas, retail, corporate, entertainment & dining, healthcare, hospitality, and cultural & educational sectors, supplemented by recurring industrial maintenance services.

Product overview

Graycor is a construction services company offering a unified portfolio of delivery methods and market sector expertise rather than a software platform. The core services include General Contracting, Design-Build, Self-Perform, Live Environment, Preconstruction, Integrated Project Delivery (IPD), Construction Technology, and MEP Coordination. These services are delivered across specialized market sectors including Manufacturing, Advanced Facilities, Entertainment & Dining, Logistics & Distribution, Power & Gas, Retail & Shopping, Corporate, Cultural & Educational, Living & Lodging, and Healthcare. Graycor serves clients throughout the U.S., Canada, and Mexico with over 100 years of construction expertise.

Differentiator

Problem solved

Functional benefit

Products and services

• General Contracting
• Design-Build
• Self-Perform Construction
• Live Environment Construction
• Preconstruction Services
• Integrated Project Delivery (IPD)
• Construction Technology Services
• MEP Coordination Services
• Industrial Maintenance Services Ongoing facility maintenance and support services providing recurring revenue from established client relationships in power, industrial, and process markets.
• Cold Storage Quality Program Specialized commissioning and quality program for refrigerated warehouses and temperature-controlled facilities, providing rigorous commissioning, seamless handover, and experienced teams managing refrigeration systems, cold-wall design, dock coordination, and phased commissioning.

Quantifiable outcome

• 125,000+ work hours without a lost-time injury on Wieland project
• +7 more outcomes

Named customers26 records

Segments11 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Owens CorningminorGTM or Marketing Partner · 29 September 2025Owens Corning recognized Graycor as one of its top supply partners, awarding Graycor the 2025 Excellence in Safety Performance Award. Owens Corning is a building products leader with over 25,000 employees in 31 countries. Graycor was recognized among top suppliers across categories of safety, sustainability, diversity, supply-chain excellence, value creation, and overall excellence.
• Associated Builders and Contractors (ABC)coreOthers · 1 January 2025Graycor is an active member of Associated Builders and Contractors, a national construction industry trade association established in 1950 with over 23,000 member companies. Graycor has achieved Diamond status in ABC's STEP Safety Management System and has been recognized as an ABC Top Performer for six consecutive years (2020-2025). Graycor also holds ABC's Accredited Quality Contractor (AQC) credential.
• Helmkamp Construction Co.coreStrategic or Co-development Partner · 4 June 2024Graycor and Helmkamp Construction Co. serve as the design-build team for Wieland's $500 million modernization and expansion project in East Alton, Illinois. The joint venture combines Graycor's national construction expertise with Helmkamp's regional market presence in the St. Louis metro area. The partnership has achieved 125,000+ work hours without a lost-time injury.
• Vestal CorporationcoreStrategic or Co-development Partner · 4 June 2024Vestal Corporation serves as a strategic design partner for the Wieland $500 million expansion project. As an international strategic partnering firm providing specialty multi-disciplinary engineering, architecture, and construction consulting services, Vestal contributes integrated design expertise for the copper manufacturing facility modernization.
• Salas O'BriencoreStrategic or Co-development Partner · 4 June 2024Salas O'Brien serves as an engineering and technical services design partner for the Wieland $500 million expansion project, contributing expertise in sustainability and decarbonization for the copper manufacturing facility's modernization and expansion.

Scale indicators21 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Barton Malow: Family-influenced, mid-sized U.S. general contractor with comparable self-perform capabilities across industrial, commercial, and sports/entertainment markets. Operates at a similar scale and pursues many of the same 'complex' project types Graycor targets.
• Holder Construction: Privately held GC with strong self-perform culture serving data centers, manufacturing, and corporate markets. Comparable in size and customer profile, with similar enterprise-relationship-based business development approach.
• DPR Construction: Large private GC with deep self-perform capabilities and sector specialization in advanced facilities, life sciences, semiconductor, and healthcare — directly overlapping with Graycor's Advanced Facilities vertical.
• Hensel Phelps: Employee-owned general contractor delivering aviation, healthcare, commercial, and federal projects with in-house self-perform trades. Operates in many of the same vertical markets with comparable scale and relationship-driven pursuits.
• Mortenson Construction: Privately held U.S. GC with strong wind/renewables, data center, and healthcare practices alongside industrial work. Similar Midwest roots and comparable self-perform emphasis in select trades.

Broad incumbents

• Turner Construction: Largest U.S. commercial general contractor by revenue, serving many of the same verticals (healthcare, corporate, retail, entertainment) but at meaningfully larger scale and with broader geographic coverage.
• Clark Construction: Large private GC with significant commercial, healthcare, and mission-critical federal work. Overlaps with Graycor's Corporate, Healthcare, and Cultural & Educational verticals at greater scale.
• Skanska USA: Major international contractor with a large U.S. civil and commercial building presence. Competes for many of the same large commercial and healthcare projects but with global balance sheet capacity.
• AECOM: Global infrastructure and construction services firm with significant industrial and energy exposure. Overlaps with Graycor's Power & Gas and Advanced Facilities verticals through its design-build and program management offerings.
• Bechtel: Largest U.S.-based privately held construction firm with deep industrial, power, and metals sector capability. Competes for the very large-scale, technically complex 'Hard Jobs' that Graycor's brand is built around, but at significantly larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCphFAcSZCxw2laVB6oxTjkw
• Facebookfacebook.com/graycor-154137534663442
• LinkedInlinkedin.com/company/75027
• Instagraminstagram.com/graycor
• Xx.com/graycor_inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries6 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 Graycor