Caterpillar Inc. is a $67 billion manufacturer of construction equipment, mining equipment, diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. The company is headquartered in Irving, Texas, with major manufacturing operations in East Peoria and Decatur, Illinois; Griffin and Athens, Georgia; Lafayette, Indiana; Mossville and other U.S. locations. Caterpillar is the world's largest construction equipment manufacturer.
Caterpillar has a long-established supplier diversity program with NMSDC and WBENC corporate membership. The company has been recognized by NMSDC as a top corporation for supplier diversity in multiple years. For diverse businesses in manufacturing, engineering, and industrial services, Caterpillar is a significant opportunity.
Caterpillar's supplier diversity program
Caterpillar's supplier diversity program operates through the company's procurement and supply chain organization. The program is backed by executive sponsorship and has been running for multiple decades.
Caterpillar is an NMSDC corporate member and WBENC corporate member. The company reports supplier diversity spend in its annual Sustainability Report (available at caterpillar.com/sustainability). Caterpillar's domestic procurement spans hundreds of manufacturing locations and corporate offices, creating broad sourcing needs.
The program has geographic concentration in Illinois (the company's historic home) and Texas (current headquarters), with operations in Georgia, Indiana, and other manufacturing states.
Certifications accepted
Caterpillar accepts:
MBE: NMSDC certification from a regional affiliate. Long-tracked by Caterpillar as an NMSDC corporate member.
WBE: WBENC certification.
SDVOSB/VOSB: Veteran-owned business certifications.
WOSB: SBA WOSB certification.
SDB / 8(a): SBA certification.
LGBTBE: NGLCC certification.
DOBE: Disability:IN certification.
HUBZone: SBA HUBZone certification. Relevant near Caterpillar facilities in Illinois and other manufacturing locations.
For manufacturing and supplier categories, NMSDC MBE is the most widely recognized and tracked certification. For business services, WBENC WBE is equally relevant.
How to register
Caterpillar uses SAP Ariba as its procurement platform. Supplier registration is managed through the Ariba Supplier Network.
Registration steps:
- Create or log in to your SAP Ariba Network account at ariba.com.
- Access Caterpillar's supplier portal through the link at caterpillar.com/suppliers.
- Complete the supplier profile with company information, UEI, NAICS codes, diversity certifications, and capabilities.
- Upload current diversity certification documents.
- Select commodity categories using Caterpillar's procurement taxonomy.
- Submit for review.
For manufacturing suppliers, Caterpillar conducts a supplier qualification process that may include on-site audits, quality system review, and capacity assessment. This is standard for Tier-1 component suppliers.
For services suppliers, the qualification process is simpler but still requires demonstrated credentials.
Product and service categories
Caterpillar's manufacturing base creates sourcing needs in industrial and technical categories:
Metal fabrication and machining: CNC machining, castings, forgings, sheet metal, and precision fabricated components. Caterpillar sources billions in metal components annually. Quality requirements include ISO 9001 or IATF 16949 (automotive-adjacent quality standard sometimes applied in heavy equipment).
Rubber and plastics: Seals, hoses, gaskets, and plastic components. Large volume, repeat-purchase category.
Electronics and electrical: Wiring harnesses, sensors, displays, and electronic control systems for Cat equipment.
Hydraulics and pneumatics: Hydraulic cylinders, pumps, valves, and hoses. High-value, technically demanding category.
Castings and raw materials: Iron, steel, and aluminum castings. Foundry capability required.
Logistics and supply chain: Transportation, warehousing, and material handling for Caterpillar's manufacturing network.
Engineering services: Product design engineering, test engineering, quality engineering, and manufacturing process development.
IT and technology: Software development, cloud services, and manufacturing technology for Caterpillar's digital and connected equipment initiatives.
Professional services: HR, staffing, marketing, legal, and facilities management.
MRO (Maintenance, Repair, and Operations): Industrial supplies, tooling, and maintenance services for Caterpillar's manufacturing facilities.
Manufacturing categories have the highest qualification barriers. Component suppliers need quality certifications, demonstrated capacity, and often pass a Caterpillar supplier development audit. Professional services and IT have lower barriers.
Quality requirements
Caterpillar has rigorous quality standards. Suppliers providing manufactured components must demonstrate:
- ISO 9001:2015 certification (minimum) or equivalent
- Statistical process control capability
- First article inspection capability
- Advanced quality planning processes
Caterpillar's supplier quality engineering team conducts supplier assessments. Passing a Caterpillar quality assessment is a meaningful credential for other industrial customers.
Spend data and public commitments
Caterpillar's Sustainability Report includes supplier diversity metrics. The company reports annual diverse spend and tracks progress against goals. Caterpillar does not publicly state a specific annual diverse spend dollar total at the Billion Dollar Roundtable level, but has been recognized by NMSDC for sustained program quality.
Realistic assessment
Caterpillar is a meaningful opportunity for diverse businesses in manufacturing, engineering, and industrial services. The company buys at large scale, has genuine program commitments, and actively engages with NMSDC's network.
Manufacturing categories require investment: quality certifications, facility audits, capacity demonstration. This is a 12-to-24-month path for suppliers entering industrial manufacturing supply chains for the first time.
Professional services, IT, and logistics categories move faster. Caterpillar's move from Deerfield, Illinois to Irving, Texas has expanded its Texas supplier ecosystem, creating new opportunities for Texas-based diverse businesses in services and logistics.
Caterpillar's dealer network (independently owned dealerships across the country) is a separate opportunity from the direct supplier program. Dealers have their own procurement needs and are often more accessible for smaller diverse businesses.
Next steps
- Register in the SAP Ariba Network and complete your Caterpillar supplier profile.
- For manufacturing categories: review Caterpillar's supplier quality requirements and assess your quality system against ISO 9001 or equivalent.
- Review Caterpillar's Sustainability Report for current supplier diversity metrics.
- Attend NMSDC Annual Conference where Caterpillar sourcing teams participate in matchmaking.
- If you are in Texas (Caterpillar's new headquarters state), engage with NMSDC's regional affiliates there to connect with Caterpillar procurement contacts.
- For machining and fabrication suppliers: contact Caterpillar's supplier development team directly about the qualification process in your specific commodity category.
Caterpillar's manufacturing scale and long-running supplier diversity program make it a priority target for diverse businesses in industrial categories. The qualification process requires investment, but the resulting relationship is typically long-term and high-value.
