| Business | Phone |
| German American Commerce Club 727 Industrial Rd, San Carlos 94070 | (415) 276-2375 |
| Rotary Club Of San Carlos San Carlos 94070 | (650) 594-5150 |
| Top Leaf Cigar Club Po Box 27, San Carlos 94070 | (510) 264-1035 |
| United Flying Club Inc San Carlos Airport, San Carlos 94070 | (650) 595-1063 |