| CompanyID | Company | Description | State |
| 2732 | Lake County Hydraulics | Hydraulic repair shop | IL |
| 1559 | Lantan Bay Enterprises | Consulting & System Integration | AZ |
| 243 | Lasko Automation | Electrical and control systems integrator. Design of electrical and control systems for industrial plants. PLC and HMI programming.
Batch weighing systems design. Emergency power system design. Start-up & commissioning services. Project management | British Columbia |
| 3089 | LEGACY CONSULTING GROUP | PROVIDE CONSULTING SRVICES FOR CONSTRUCTION AND INDUSTRIAL CLIENTS. MARKETING CONSULTANTS. PURCHASING AGENT | CA |
| 180 | Liebert Corporation | Our power protection line offers the broadest range of solutions in the industry, from surge protection and power conditioning to Uninterruptible Power Supplies in off-line, on-line and line-interactive topologies, software and communications. | OH |
| 1714 | lifenet | Human Tissue banking | VA |
| 2778 | Lippert Design & Integration Ltd. | Industrial Automation Systems Integrator and Machine Tool service and retrofitter. | British Columbia |
| 402 | Lloyd Staffing | 30 year old Staffing Firm | NY |
| 1734 | LoKey - data acquisition & control | Providing services to establish computerized data acquisition and control systems specializing in LabVIEW programming in Massachusetts and Rhode Island. | MA |
| 3213 | Lost City | Residential Designs | TX |
| 907 | Lunseth/R&D Sales | Enviromental & Robotic controls | ND |
| 620 | LYNWOOD MACHINE & ENGINEERING, INC, | A machine shop facility with over 40,000 square feet of flooe space and crane capacity up to 40 tons. | IN |
