| Business | Phone |
| Advanced Design Ottawa Inc 39 Robertson Rd, Nepean K2H 8R2 | (613) 829-5179 |
| Antares Engineering Group Inc 159 Colonnade Rd, Nepean K2E 7J4 | (613) 723-6034 |
| Atsana Semiconductor Corp 18 Antares Dr, Nepean K2E 1A9 | (613) 224-9926 |
| Glencor Engineering Ltd 20 Glenbrook Way, Nepean K2G 0V2 | (613) 596-1099 |
| Goodeve Manhire Inc Structur 77 Auriga Dr #18, Nepean K2E 7Z7 | (613) 226-4558 |
| Harmer Podolak Engineering 39 Robertson Rd #221, Nepean K2H 8R2 | (613) 828-4445 |
| Irc Batten Sears Group Inc 74 Colonnade Rd #200, Nepean K2E 7L2 | (613) 225-0693 |
| John D Paterson & Assoc Ltd 28 Concourse Gate #1, Nepean K2E 7T7 | (613) 226-7381 |
| Joseph B Mangione & Assoc 154 Colonnade Rd, Nepean K2E 7J5 | (613) 225-9940 |
| Maillet & Assoc Inc 29 Roberta Cres, Nepean K2J 1G5 | (613) 222-1462 |
| Menova Engineering Inc 148 Colonnade Rd #9, Nepean K2E 7R4 | (613) 226-5099 |
| Metak Systems 21 Antares Dr #110, Nepean K2E 7T8 | (613) 226-9192 |
| National Capital Engineering 100 Craig Henry Dr #202, Nepean K2G 5W3 | (613) 228-8654 |
| Rsg Engineering Inc 3754 Richmond Rd, Nepean K2H 5B9 | (613) 721-0880 |
| Spencer & Assoc Ltd 16 Green St, Nepean K2J 3R2 | (613) 825-6298 |
| Transenco Limited 184 Redpath Dr, Nepean K2G 6K5 | (613) 823-0021 |
| Vision Building & Inspection 57 Beaver Ridge, Nepean K2E 6E2 | (613) 225-7302 |
| Wood Banani & Assoc Ltd 3740 Richmond Rd, Nepean K2H 5B9 | (613) 596-6454 |
| Brook Van Dalen & Assoc Ltd 33 Beddington Ave, Nepean K2J 3N2 | (613) 825-7749 |
| Chiarelli Engineering Ltd 100 Craig Henry Dr #202, Nepean K2G 5W3 | (613) 225-1123 |
| Conestoga-Rover & Assoc Ltd 179 Colonnade Rd #400, Nepean K2E 7J4 | (613) 727-0510 |
| David Mc Manus Engineering Ltd 39 Camelot Dr #200, Nepean K2G 5W6 | (613) 225-1929 |
| Explotech Engineering Ltd 58 Antares Dr #5, Nepean K2E 7W6 | (613) 723-2494 |
| G A Clark & Assoc Ltd 1 Antares Dr #250, Nepean K2E 8C4 | (613) 226-5652 |