Transportation	Train Signaling and Ticketing Systems These companies manufacture systems that are used to sell tickets and control train traffic flow for train stations and sell directly to their customers.	237M	6.37%
Transportation	Mobility Traffic Network Management Services These companies manage traffic network services for governments.	134M	3.60%
Commercial Industries	HR Management These companies perform outsourced human resource functions for other companies. These functions include payroll and internal employee relations.	440M	11.82%
Government Services	Healthcare Benefit Management for Governments These companies perform payment error verification for Medicare and Medicaid.	605M	16.25%
Commercial Industries	Document Digitization for Diversified Businesses These companies convert digital copies of documents for diversified businesses.	516M	13.86%
Transportation	Diversified Design and Engineering Services for Tollroad Operators These companies are diversified design and engineering firms for toll road operators.	317M	8.52%
Transportation	Cloud Fleet Management Software for Businesses These companies develop cloud-based fleet management software for businesses.	8M	0.21%
Commercial Industries	Clinic Practice Management These companies provide non-medical services (billing, protocol establishment, education, etc.) to healthcare clinics.	357M	9.59%
Commercial Industries	Call Center These companies provide outsourced customer service for companies by managing call centers.	619M	16.63%
Government Services	Administration of Social Programs These establishments administer social services and benefits programs, including pension services for veterans.	489M	13.14%
keyboard_arrow_right keyboard_arrow_down	Transportation Train Signaling and Ticketing Systems	237M	6.37%
keyboard_arrow_right	These companies manufacture systems that are used to sell tickets and control train traffic flow for train stations and sell directly to their customers.
keyboard_arrow_right keyboard_arrow_down	Transportation Mobility Traffic Network Management Services	134M	3.60%
keyboard_arrow_right	These companies manage traffic network services for governments.
keyboard_arrow_right keyboard_arrow_down	Commercial Industries HR Management	440M	11.82%
keyboard_arrow_right	These companies perform outsourced human resource functions for other companies. These functions include payroll and internal employee relations.
keyboard_arrow_right keyboard_arrow_down	Government Services Healthcare Benefit Management for Governments	605M	16.25%
keyboard_arrow_right	These companies perform payment error verification for Medicare and Medicaid.
keyboard_arrow_right keyboard_arrow_down	Commercial Industries Document Digitization for Diversified Businesses	516M	13.86%
keyboard_arrow_right	These companies convert digital copies of documents for diversified businesses.
keyboard_arrow_right keyboard_arrow_down	Transportation Diversified Design and Engineering Services for Tollroad Operators	317M	8.52%
keyboard_arrow_right	These companies are diversified design and engineering firms for toll road operators.
keyboard_arrow_right keyboard_arrow_down	Transportation Cloud Fleet Management Software for Businesses	8M	0.21%
keyboard_arrow_right	These companies develop cloud-based fleet management software for businesses.
keyboard_arrow_right keyboard_arrow_down	Commercial Industries Clinic Practice Management	357M	9.59%
keyboard_arrow_right	These companies provide non-medical services (billing, protocol establishment, education, etc.) to healthcare clinics.
keyboard_arrow_right keyboard_arrow_down	Commercial Industries Call Center	619M	16.63%
keyboard_arrow_right	These companies provide outsourced customer service for companies by managing call centers.
keyboard_arrow_right keyboard_arrow_down	Government Services Administration of Social Programs	489M	13.14%
keyboard_arrow_right	These establishments administer social services and benefits programs, including pension services for veterans.