| Above The Wave | Above The Wave | — | (925) 783 6627 | Pool | Oakley · Contra Costa County | — | — |
| Ace Pool Service INC | Richard C Pruett | — | (925) 689 5291 | Pool | Concord · Contra Costa County | — | — |
| Advance Pool Care INC | Michael Allan Schaezler | info@advancepoolcare.com | (925) 309 4685 | Pool | Danville · Contra Costa County | — | — |
| Affinity Waterscapes | Affinity Waterscapes | info@affinitywaterscapes.com | (925) 465 4517 | Pool | Lafayette · Contra Costa County | — | — |
| Aguilar Pool Service | Rickie Anthony Aguilar | — | (925) 627 0568 | Pool | Oakley · Contra Costa County | — | — |
| All Clear Pools & Spa Maintenance | Aschenwald Klaus | — | (925) 283 1087 | Pool | Concord · Contra Costa County | — | — |
| All Pure Pool Service LLC | Michael Anthony Nisco | — | (925) 427 7946 | Pool | Pittsburg · Contra Costa County | — | — |
| Almaden Pool Services | Rajwant Singh Samra | %20almadenpoolsrvcs@sbcglobal.net | (510) 386 3892 | Pool | San Ramon · Contra Costa County | — | — |
| Aloha Pool Service | Sean Kealii Cordeiro | — | (925) 240 7117 | Pool | Brentwood · Contra Costa County | — | — |
| Alta American Pools INC | Ross Christopher Owens | — | (925) 766 2269 | Pool | Danville · Contra Costa County | — | — |
| Aqua Dream Pools | Anne Polce | — | (925) 584 2112 | Pool | Danville · Contra Costa County | — | — |
| Aqua Pool Company Inc. | Aqua Pool Company Inc. | — | (925) 938-1441 | Pool | Concord · Contra Costa County | — | — |
| Aqua Pool Construction LLC | Craig Allen Marker | todd@aquapoolconstruction.com | (925) 890 1596 | Pool | Concord · Contra Costa County | — | — |
| Aquapro Pool & Chemical INC | Jason Everett Mc Killip | — | (925) 673 7000 | Pool | Clayton · Contra Costa County | — | — |
| Aquatic Leak Detection | Katherine Mary Vieira | — | (925) 372 7145 | Pool | Danville · Contra Costa County | — | — |
| Aquatic Pool And Spa Maintanence Experts | Faraz Soltani | — | (925) 510 0988 | Pool | Pleasant Hill · Contra Costa County | — | — |
| Arnold Pool/spa Service Repair | Martin Garcia Manalang | — | (925) 825 2575 | Pool | Concord · Contra Costa County | — | — |
| At Your Door Pool Service INC | Garcia Jermain | info@atyourdoorpoolservice.com | (925) 584 1928 | Pool | Brentwood · Contra Costa County | — | — |
| Atlantis Pools INC | Robert John Davis | yourpoolman@hotmail.com | (925) 736 0447 | Pool | Danville · Contra Costa County | — | — |
| Bay Area Koi Ponds LLC | Noah Graham Twitchell | noah@bayareakoiponds.com | (510) 984 8947 | Pool | Richmond · Contra Costa County | — | — |
| Bl Pavers INC | Bruno De Lima Sr Pereira | — | (925) 272 5250 | Pool | Danville · Contra Costa County | — | — |
| Blackhawk Pool Care & Repairs | Joe Adam Yncio Anton | — | (925) 255 0020 | Pool | Danville · Contra Costa County | — | — |
| Blue Champagne Pools INC | Wayne Stuart Jr Olson | — | (925) 809 0486 | Pool | Brentwood · Contra Costa County | — | — |
| Blue Horizon Pools | Heidi Elizabeth Bennett | — | (925) 207 8810 | Pool | Martinez · Contra Costa County | — | — |
| Blue Wave Pools | Blue Wave Pools | — | (925) 818 1662 | Pool | Concord · Contra Costa County | — | — |
| Bluerock Pools | Estrella Ramos Garcia | — | (925) 382 6042 | Pool | Pittsburg · Contra Costa County | — | — |
| California Aqua Pros INC | Gregory Lee Purkey | — | (925) 240 6262 | Pool | Discovery Bay · Contra Costa County | — | — |
| Cascadian Pool Service LLC | Clayton Roscoe Perdue | — | (925) 917 4085 | Pool | Pleasant Hill · Contra Costa County | — | — |
| Clearly Different INC | Lori Janell Duran | — | (925) 743 0417 | Pool | Danville · Contra Costa County | — | — |
| Complete Pool Service And Repairs | Jasvir Singh Sahota | — | (925) 765 4035 | Pool | San Ramon · Contra Costa County | — | — |
| Dave's Pool Service | David Brian Hayes | — | (925) 829 4443 | Pool | San Ramon · Contra Costa County | — | — |
| Davidson Pools | Davidson Pools | — | (480) 530-5385 | Pool | Pleasant Hill · Contra Costa County | — | — |
| Del ""does"" Pools Service And Maintenance INC | Delbert Miller | — | (209) 814 2511 | Pool | Martinez · Contra Costa County | — | — |
| Del Does Pools Service And Maintenance | Miller Delbert | — | (209) 814 2511 | Pool | Martinez · Contra Costa County | — | — |
| Diaz Marin Pool Services | Kevin Arnold Diaz Arango | selvinreys11722@gmail.com | (510) 829 6808 | Pool | Richmond · Contra Costa County | — | — |
| Diverse Scape Pools & Spas INC | Armando Jr Garcia | — | (925) 431 9500 | Pool | Brentwood · Contra Costa County | — | — |
| East Bay Pool Services INC | James Douglas Vance | — | (925) 681 0300 | Pool | Walnut Creek · Contra Costa County | — | — |
| Eco Solar | Eco Solar | — | (925) 639 9251 | Pool | Concord · Contra Costa County | — | — |
| Espinoza Pool Builders | Espinoza Pool Builders | — | (510) 552 5486 | Pool | Oakley · Contra Costa County | — | — |
| Firehouse Pools | Chalit Titirojnoparat | — | (925) 378 2554 | Pool | Walnut Creek · Contra Costa County | — | — |