| United States Drug Testing Laboratories (USDTL) 1700 S. Mount Prospect Road, Des Plaines 60018 847-375-0770 • www.usdtl.com
| 1991
| 160
| A leader in forensic toxicology, focusing on ground-breaking long-term testing for substances of abuse in specialized specimens such as umbilical cord, hair, nail, and dried blood spot
| Researchers, treatment/assessment centers, government agencies, universities, perinatal quality collaboratives, physician health programs, courts and hospitals
|
| The Mx Group 7020 High Grove Blvd., Burr Ridge 60527 800-827-0170 • www.themxgroup.com
| Andrew Mahler, CEO/founder 1989
| 130
| Demand generation, lead management, marketing automation, data sourcing and management, web/app development, video and motion graphics, design, content, brand strategy
| Cummins, Tempur Sealy International, Siemens, Cox Automotive, Wonderlic, Zekleman Industries,
|

| Porte Brown LLC 845 Oakton St., Elk Grove Village 60007 847-956-1040 • www.portebrown.com
| Bruce Jones, CEO/managing partner 1946
| 106
| Cyber security audits, outsourced advisory & accounting services including real-time Dashboard Implementation & KPI Consulting, QuickBooks API Solutions, ERP Software.
| All industries
|
| CPT Network Solutions Inc. 950 IL-83, Suite F, Wood Dale 60191 630-735-7000 • www.cptnetworks.com
| Thomas A. Chesna, CEO/resident (tchesna@cptnetworks.com) 2005
| 65
| Technical project management, including customized technology services, from developing work scopes for electrical or wireless systems to managing national hardware rollout projects
| National retailers, senior living companies
|
| Links Technology Solutions Inc. 440 E. State Parkway, Schaumburg 60173 847-252-7600 • www.linkstechnology.com
| Brian Burke, president/CEO (bburke@linkstechnology.com) 1999
| 50
| Managed services, IT support, data recovery, co location, Knowbe4, analytics, aps, web development, software development, infrastructure as a service, IT staffing
| Cisco, Thermos, Salesforce, 3D Exhibits
|