Rising to the challenge.

Building something more.

Graycor Industrial

Rising to the challenge.

In an industry where projects can range markedly in size, scope and complexity, Graycor Industrial offers the benefits of deep-rooted financial stability and a vast network of resources. Combined with our dedicated, hands-on management style, this gives us the capability of handling hugely sophisticated projects and the ability to be more nimble, more responsive and more focused on our clients' needs at every step.

Safety first.

“Nothing is more important than safety … not production, not sales, not profits.” —Mel Gray, Graycor’s Chairman and CEO Emeritus

At Graycor Industrial, building something more requires intrinsic values that foster health and safety for the good of all.

We owe our long history of positive safety performance to:

  • A top-notch, "Zero Injuries" goal safety program
  • A team of experienced and dedicated safety professionals
  • Safety-focused clients and project partners
  • Insurance partners including American Contractors Insurance Group (ACIG)


Built on quality.

Graycor Industrial distinguishes itself as an ISO 9001-registered general contractor, committed to meeting and exceeding our industrial clients’ needs by implementing an effective, accountable and process-driven Quality Program based on ISO requirements.

Our reputation is built on quality. To help ensure our quality management processes meet or exceed industry requirements, we regularly conduct employee training seminars and maintain key industrial certifications.
Graycor Industrial is accredited by the following organizations:

  • American Society of Mechanical Engineers (ASME)

    • “U”, “S”, “A” and “PP” certificates of authorization

  • National Board of Boiler and Pressure Vessel Inspectors

    • National Board “R” certificate of authorization for the repair and alteration of pressure retaining items

    • “NB” certificate of authorization allowing us to identify pressure retaining items registered with the National Board as required by jurisdiction

  • American Institute of Steel Construction (AISC)

    • Certified Steel Erector




Delivering a better project through self-performance.

As a union-affiliated general contractor, Graycor Industrial works adeptly across the metals, power and process markets while self-performing an average of 3 million craft labor hours annually including:

  • Excavation
  • Demolition
  • Concrete
  • Foundations
  • Structural steel erection
  • Heavy rigging
  • Equipment setting
  • Ductwork
  • Process piping
  • ASME code work
  • Refractory

By self-performing much of our work, we ensure we consistently deliver on our rigorous schedule, cost and quality standards. In fact, we even have our own fabrication shop that gives us further control over the cost, quality and scheduling of our projects.

When portions of work require a higher level of specialization, we carefully choose only experienced subcontractors that share our commitment to safety, quality and performance.



Preconstruction services that get your project built.

With nearly a century's worth of industrial construction experience, Graycor Industrial knows what it takes to plan your next project. Our preconstruction services include:

  • Budgeting
  • Preliminary scheduling
  • Building Information Modeling (BIM)
  • Constructability reviews
  • Developing with engineering to prepare subcontract bid packages
  • Assessing craft labor availability
  • Meeting with local union business managers and subcontractors 

Project delivery methods, designed to suit.

Every project comes with its own set of challenges. Deciding on a project delivery method does not have to be one of those challenges. Graycor Industrial is experienced with a range of contract project delivery methods such as:

  • Traditional

    • Lump sum

    • Cost plus fixed fee

    • Time and material

  • Alternatives

    • Open book

    • Cost reimbursable with target incentives

    • Shared risk/savings and partnering

  • Joint Ventures

    • Risk sharing

    • Joint and several

    • Project-based

State-of-the-art project controls.

A critical part of Graycor Industrial’s success relies on our project controls strategy. Using onsite and home office support, Graycor’s project teams proactively forecast, plan and monitor the cost and schedules for each project from the initial award to closeout.

Our project controls method encompasses the use of:

  • Internal reporting and monitoring
  • Primavera P6 v. 8.2 Web-based scheduling
  • Job cost management for payroll and cost projections
  • SharePoint for document administration
  • Building Information Modeling (BIM) software such as Autodesk (AutoCAD / Revit / Navisworks) for model analysis of constructability
  • 4D scheduling
  • Construction simulations and lift animations
  • 3D lift planning


Heavy rigging above and beyond.


Lifting, moving and setting heavy equipment is vital to what we do. As one of our core competencies, Graycor Industrial performs heavy rigging which includes management of cranes, heavy haul loads and critical lift plans.


Because we move some of the most massive, heaviest equipment and prefabricated assemblies in the world, we use some of the largest cranes in the world, often for lifts that can exceed 500 tons.


Our heavy lift planning services include:

  • Overall site evaluation
  • Heavy lift crane siting
  • Individual lift sizes and weights
  • Machine selection
  • Construction sequencing and lift planning, including the use of 3D modeling software

Graycor owns various carry deck and hydro cranes and has master rental agreements in place that give us access to specialized lifting equipment virtually anywhere in the U.S. We have utilized large-capacity crane models that include:

  • Kobelco SL6000
  • Liebherr 1800 C 60 and LR1750
  • Mammoet PTC35
  • Manitowoc 16000, 18000 and 21000
  • Versa Crane TC-12000

Graycor's pride is its people.


At Graycor Industrial, our people are our most valuable asset. Our employees are educated, experienced, skilled and highly motivated construction professionals who are given the resources, training and development opportunities to encourage them to perform their jobs with a sense of pride and ownership, while achieving their career goals.


The Graycor culture is an important part of who we are and the work we do. We partner with employees who share in our core values of:

  • Long-term perspective
  • Integrity and honesty
  • Health and safety
  • Relationships
  • Value
  • Continuous improvement
  • Family

Graycor Industrial on the map.

Home-based near Chicago in Oakbrook Terrace, Illinois, Graycor Industrial Constructors is strategically located in the Midwest, with regional offices in Indiana, Michigan and Pennsylvania, to serve industrial clients throughout the U.S.

Visit our locations and projects.

Meet our Team

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Sam Potter


As President of Graycor Industrial Constructors Inc., Sam Potter oversees Graycor Industrial’s estimating, business development and operations efforts. Sam joined Graycor in 2002 and worked in numerous roles including project controls, project management and estimating. His work experience includes supporting a variety of projects within the metals, power and process markets served by Graycor Industrial. Sam, who is a registered Professional Engineer, received a B.S. in civil engineering from Iowa State University and is a member of the American Society of Civil Engineers.


Lee Petcu

Senior Vice President - Power Nuclear

Lee Petcu serves as Senior Vice President primarily in charge of Graycor Industrial’s Nuclear division. Lee joined Graycor in 1986 and has more than 45 years in construction industry experience, primarily within the industrial construction arena. Throughout his career with Graycor, Lee has held a variety of increasingly responsible positions including senior project manager, manager of quality assurance/quality control, manager of estimating, construction manager and vice president. For the past 18 years, he has focused on developing client relationships and overseeing work within the power market. Lee received a B.S. in civil engineering from Washington University and is a registered Professional Engineer in the state of Pennsylvania.


Shawn Anderton

Vice President - Estimating

Shawn Anderton is Vice President and directs and oversees Graycor Industrial’s estimating and competitive bid process. In addition, she is responsible for the company's project controls. Joining Graycor in 2001, Shawn’s areas of expertise include estimating, project and craft supervision, and project controls. She has more than 20 years of construction industry experience having held progressively responsible positions of field engineer, general superintendent, assistant project manager, corporate director of preconstruction services and project controls, and chief power estimator. A graduate of Kansas State University, Shawn earned a B.S. in mechanical engineering and is a certified engineer in training in the state of Kansas.


Joe George

Vice President + General Manager - Power

As Vice President and General Manager, Joe George leads Graycor Industrial’s power work in the eastern U.S., focused on environmental upgrades of fossil plants, new power generation facilities as well as transmission and distribution work. Joe brings more than 25 years of experience in project controls, project management and operations including civil, structural, equipment and piping experience in the industrial arena. Joe has been with Graycor for 15 years achieving positions of increasing responsibility. He earned a B.S. in construction engineering from Iowa State University.


Robert Fritsche

Vice President - Power

Robert Fritsche is Vice President overseeing Graycor Industrial’s power operations in the U.S. Western Region. Robert joined Graycor in 1998 and has nearly 20 years of extensive project experience, including project controls, project management and operations with civil, structural, equipment and piping experience in the industrial arena. As a graduate of the University of Wisconsin with a B.S. in civil engineering, Robert is a Registered Engineer in Training and a member of the American Society of Civil Engineers.


Dan Kilgore

Vice President + General Manager - Metals

Dan Kilgore is Vice President and General Manager leading Graycor Industrial’s Metals division. Dan brings more than 20 years of experience estimating, engineering and managing projects within the metals and power industries. Responsibilities have included pre-project planning, constructability services, schedule and cost control, estimating, subcontractor negotiations and management, engineer mentoring committee member, safety committee chairman and quality training coordinator. Dan received a B.S. in construction engineering and management from Purdue University. He is a member of numerous professional affiliations including the Association of Iron and Steel Technology (AIST), The Association of Union Constructors (TAUC) and Eastern States Blast Furnace & Coke Oven Association.


Ted Vrehas

Vice President - Metals

As Vice President for Graycor Industrial with nearly 25 years of construction industry experience, Ted focuses on business development in the metals market as well as other market assignments. Ted joined Graycor in 1994 as an engineer and has held a variety of increasingly responsible positions within operations, estimating and business development. During his career at Graycor, Ted managed projects mainly within the metals market for clients such as AK Steel, ArcelorMittal, Severstal and U.S. Steel. Ted received a B.S. in construction engineering and management from Purdue University; he is also a member of the Association of Iron and Steel Technology (AIST).


Dean Andrisevic

Business Development Director - Power Western Region

As Director of Business Development for Graycor Industrial, Dean Andrisevic is responsible for fostering new and existing industry contacts to develop future project opportunities in the Power Generation sector. Prior to joining Graycor in 2013, Dean held multiple senior management roles, bringing more than 30 years of construction industry experience with a strong technical background in project and operations management. He has experience working with new and existing coal-fired power stations, simple- and combined-cycle gas turbine installations, coal gasification facilities, oil refineries, pulp and paper mills, waste-to-energy plants and some nuclear power station enhancements. Dean earned his B.S. in civil engineering from the University of Kansas.


Adam Brown

Business Development Manager - Power Nuclear

Adam Brown serves as Business Development Manager responsible for leading developmental efforts in the company’s nuclear power market as well as supporting Graycor’s power market. Joining Graycor Industrial in 2011, Adam has more than 30 years of industry knowledge and experience. He has held various roles throughout his career including sales manager, both on a national and international level, project manager, corporate safety director, quality manager and lead engineer.


Larry Dumford

Business Development Manager - Process

As Business Development Manager, Larry Dumford is responsible for Graycor Industrial’s business development activities within the process market. Larry joined Graycor in 2009 and has a substantial background of 15 years in business development with more than 35 years of industrial process experience. A graduate of Bowling Green State University, Dumford holds two B.S. degrees: one in production and operations management and another in procurement and materials management.


Our Offices

The complex, time-sensitive nature of the work we do in the metals, power and process markets requires us to be ready to serve our clients whenever and wherever they need us. With strategically placed offices, a team of experienced operations managers and skilled craft personnel, we have the resources needed to tackle even the most challenging industrial projects, anywhere in the U.S.



Two Mid America Plaza, Suite 400
Oakbrook Terrace, IL 60181
  • p: 630-684-7110
  • f: 630-684-7111


6500 Daniel Burnham Drive
Portage, IN 46368
  • p: 219.763.8700
  • f: 219.763.8701


13040 Capital Street
Detroit, MI 48237
  • p: 248.398.7222
  • f: 248.398.0005


333 Rouser Road, Suite 603
Coraopolis, PA 15108
  • p: 412.262.4190
  • f: 412.262.4197