| Name | Phone | Category |
| G.W. Grimm Associates | 520-887-3739 | Business Consulting and Specialized Services |
| G2G Consulting, LLC | 216-658-3995 | Business Consulting and Specialized Services |
| GAAS | 520-382-3267 | Biosciences |
| Galaxy Organization, The | 602 955-8877 | Business Consulting and Specialized Services |
| Gammage & Burnham PLC | 602 256-0566 | Legal Services |
| Garmin | 480-598-2641 | Retail and Consumer Goods |
| Gate 6 | 623 572-7725 | Internet-Related Services, IT Services & Solutions |
| Global Growth Resources | 480.883.1209 | Telecommunications |
| Global Patent Solutions, LLC | 480 393-0464 | Other Technology-Based Industrial Services |
| Global Recruiters of Chandler | 480 389-2296 | Human Resources and Employment |
| Global Software Development Services, Inc. | 480 922-3960 | Computer Consulting Services |
| Global Solar Energy, Inc. | 520 546-6313 | Manufacturing |
| Globalmedia Group LLC | 480 922-0044 | Telecommunications |
| GMP Networks | 520 577-3891 | Computer Consulting Services |
| GoGogh | 480 391-0791 | Telecommunications |
| Government Information Technology Agency | 602 364-4770 | Government and Public Sector |
| Grand Canyon University | 602 639-7500 | Academic |
| Gray Area Technologies | 623 516-8115 | Manufacturing |
| Greater Phoenix Advisors, Inc. | 480 888-6312 | Business Consulting and Specialized Services |
| Greater Phoenix Chamber of Commerce | 602 254-5521 | NonProfit Associations |
| Greater Phoenix Convention & Visitors Bureau | 602 252-0040 | Government and Public Sector |
| Greater Phoenix Economic Council | 602 256-7700 | NonProfit Associations |
| Greater Phoenix Educational Management Council | 623-772-2214 | NonProfit Associations |
| Greater Phoenix Innovation & Technology Accelerators | 480-363-1166 | NonProfit Associations |
| Greenberg Traurig LLP | 602 445-8000 | Legal Services |
| Greene Holcomb & Fisher | 480 348-6405 | Financial and Banking Services |
| Greenwater Global LLC | 480 717-7510 | Environmental,Sustainable Systems |
| Greg Smith and Associates | 520 615-6385 | Insurance Services |
| Grip® Innovations | 623-328-8233 | Other Technology-Based Industrial Services |
| GroveSite | 602 952-9880 | Other Support Services |
| Growth Nation | 480 595-5000 | Business Consulting and Specialized Services |
| Guided Therapy Systems, LLC | 480 649-4399 | Other Technology-Based Industrial Services |