| Business | Phone |
| Design Tek Energy Compliance 616 Ramona St # 4, Palo Alto 94301 | (650) 329-0955 |
| Energy Design Group 2149 Dartmouth St, Palo Alto 94306 | (650) 424-1189 |
| Growth Resources Partners 3832 Grove Ave, Palo Alto 94303 | (650) 364-2531 |
| Waste Energy Integrated Systm 4151 Middlefield Rd, Palo Alto 94303 | (650) 858-2114 |