| Business | Phone |
| Advanced Performance Systems 2700 Thornbrook Rd, Ellicott City 21042 | (410) 313-9763 |
| Collaborative Technologies 3280 Pine Orchard Ln, Ellicott City 21042 | (410) 480-9470 |
| Computer Etc 3169 West Springs Dr, Ellicott City 21043 | (410) 750-8622 |
| Data Tectonics 3730 Dorsey Search Cir, Ellicott City 21042 | (410) 461-4735 |
| Fillmore 3213 Corporate Ct # A, Ellicott City 21042 | (410) 465-6335 |
| G & C Svc Inc 10389 Tuscany Rd, Ellicott City 21042 | (410) 461-5455 |
| Hmg Technologies 8358 Main St # 2, Ellicott City 21043 | (410) 203-1447 |
| Imaging Technologies & Svc Inc Ellicott City 21042 | (410) 465-3548 |
| Informative Technologies 8686 Manahan Dr, Ellicott City 21043 | (410) 750-7754 |
| Interface & Control Systems 8303 Winter Wind Ct, Ellicott City 21043 | (410) 750-7873 |
| Jaypar Inc 3730 Garand Rd, Ellicott City 21042 | (410) 418-8228 |
| Jony 5113 Britten Ln, Ellicott City 21043 | (410) 744-5355 |
| Lightship Consulting Inc 4504 Chews Ter, Ellicott City 21043 | (410) 461-5838 |
| Prosync Tech Group Llc 5120 Dorsey Hall Dr, Ellicott City 21042 | (410) 772-7969 |
| Rodbard & Assoc 723 Pleasant Hill Rd, Ellicott City 21043 | (410) 461-1022 |
| Systems & Software Inc 5164 Bonnie Branch Rd, Ellicott City 21043 | (410) 750-0121 |
| Systems Consultants Svc 5058 Dorsey Hall Dr # 203, Ellicott City 21042 | (410) 730-4040 |
| Techno Systems Inc 3209 Corporate Ct # A, Ellicott City 21042 | (410) 461-5436 |
| V S System Solutions Inc 9800 Woodbridge Ct, Ellicott City 21042 | (410) 461-8180 |
| Visual Data Systems 5010 Dorsey Hall Dr, Ellicott City 21042 | (410) 964-8665 |