California Transit Association
Member Profiles
Use the interactive map to view highlights and histories of individual transit agencies and support groups in California, as well as key business partners who have contributed to transit’s success. Click the Filter tools to customize your view among different member types. Click the tools at right to toggle between Map and List View.
The "Read More" buttons on individual map entries (or the active links in the List View) will take you to full organization profiles. Contact Maria Barajas at maria@caltransit.org to learn how to add your organization's profile to the collection.
ABC Companies
1506 30th Street, NW
Faribault,
MN
55021
(507) 334-1871
Air and Lube Systems
8353 Demetre Ave
Sacramento,
CA
95828
(916) 257-1708
Alameda-Contra Costa Transit District
1600 Franklin Street, 10th Floor
Oakland,
CA
94612
(510) 891-7255
Alexander Dennis, Inc.
31566 Railroad Canyon Rd. #342
Canyon Lake,
CA
92587
(951) 244-9429
Allied Telesis, Inc
3041 Orchard Pkwy
San Jose,
CA
95134
(408) 761-0600
Allison Transmission, Inc.
One Allison Way
Indianapolis,
IN
46222
American Moving Parts
4408 Worth Street
Los Angeles,
CA
90063
(213) 225-2310
American Seating Company
801 Broadway Avenue NW
Grand Rapids,
MI
49504
(800) 748-0353
AMMA Transit Planning
19060 VAN BUREN BLVD. STE. 114-378
Riverside,
CA
92508
(951) 784-1333
AngelTrax
119 South Woodburn Drive
Dothan,
AL
36305
(800) 673-1788
AP Bus Maintenance Consulting
30300 Antelope Rd., Apt. 2221
Menifee,
CA
92584
(805) 305-7128
B & C Truck Electric Inc.
46467 Kohinoor Way
Temecula,
CA
92592
(619) 818-4613
BAE Systems
1098 Clark Street
Endicott,
NY
13760
(412) 696-9255
Sedgwick
1750 Creekside Oaks Drive, Suite 200
Sacramento,
CA
95833
(916) 244-1100
BraunAbility
PO Box 310
Winamac,
IN
46996
(574) 946-6153
BusStuf, Inc.
847 Portal Avenue
Oakland,
CA
94610
(510) 839-5513
BYD
1800 South Figueroa Street
Los Angeles,
CA
90015
California Association for Coordinated Transportation
4632 Duckhorn Drive
Sacramento,
CA
95834
(916) 920-8018
California Department of Transportation - Division of Rail & Mass Transportation
DRMT Resource Unit, MS-39
P.O. Box 942874
Sacramento,
CA
94274
(916) 654-9777
California Transit Association
1415 L St., Suite 1000
Sacramento,
CA
95814
CALSTART
48 South Chester Avenue
Pasadena,
CA
91106
(626) 744-5687
Capitol Corridor Joint Powers Authority
300 Lakeside Drive
Oakland,
CA
94612
(510) 464-6990
Cardinal Infrastructure, LLC
601 Pennsylvania Avenue, NW
Suite 900
Washington,
DC
20004
(202) 434-8266
Connectpoint Inc.
175 Cremona Drive; Suite 160
Goleta,
CA
93117
(805) 682-8900
City of Commerce
5555 Jillson Street
Commerce,
CA
90040
(323) 887-4419
City of Culver City
4343 Duquesne Avenue
Culver City,
CA
90232
(310) 253-6500
City of Elk Grove, Transit Services
8401 Laguna Palms Way
Elk Grove,
CA
95758
(916) 687-3030
City of Fresno/Department of Transportation/Fresno Area Express
2223 G Street
Fresno,
CA
93706
(559) 621-1520
City of Los Angeles Department of Transportation
100 S Main Street, 10th Floor
10th
Los Angeles,
CA
90012
(213) 972-8408
City of Petaluma
555 N. McDowell Blvd
Petaluma,
CA
94954
(707) 778-4421
City of Redondo Beach - Transit Division
415 Diamond Street
Redondo Beach,
CA
90277
(310) 318-0610
City of San Luis Obispo
919 Palm Street
San Luis Obispo,
CA
93401
(805) 781-7121
Clean Energy
4675 MacArthur Court, Suite 800
Newport Beach,
CA
92660
(949) 437-1361
Clever Devices Ltd.
300 Crossways Park Drive
Woodbury,
NY
11797
(516) 433-6100
Complete Coach Works
1863 Service Court
Riverside,
CA
92507
(800) 287-7253
Connexionz Limited
6045 Wilson Boulevard
Suite 100
Arlington,
VA
22205
(661) 451-1005
Connixt, Inc.
17777 Center Court Drive #600
Cerritos,
CA
90703
(714) 729-3958
Contra Costa Transportation Authority
2999 Oak Road, Suite 100
Walnut Creek,
CA
94597
(925) 256-4700
Creative Bus Sales, Inc.
14740 Ramona Avenue
Chino,
CA
91710
(800) 326-2877
Cummins Inc.
1939 Deere Avenue
Irvine,
CA
92606
(949) 862-7241
Cummins Westport, Inc
101 – 1750 West 75th Avenue
Vancouver,
BC
V6P 6G2
Canada
Daktronics Incorporated
201 Daktronics Dr.
Brookings,
SD
57006
(605) 692-0200
David Rzepinski
920 Randolph Road
Santa Barbara,
CA
93111
(310) 692-0274
De Leo Transportation Fabric
305 W High Ave
High Point,
NC
27260
(336) 510-1482
Eastern Contra Costa Transit Authority
801 Wilbur Avenue
Antioch,
CA
94509
(925) 754-6622
Ecolane USA, Inc.
940 W Valley Road
Suite 1400
Wayne,
PA
19087
(712) 764-9101
El Dorado National - California, Inc.
9670 Galena Street
Riverside,
CA
92509
(909) 591-9557
ELERTS Corp.
1132 Main Street
Weymouth,
MA
02190
(877) 256-1971
Enghouse Transportation
80 Tiverton Court, Suite 800
Markham,
OC
L3R 0G4
Canada
(905) 946-3200
ETA Transit Systems
7700 Congress Avenue
Suite 2201
Boca Raton,
FL
33487
(800) 382-0917
Fairfield and Suisun Transit
2000 Cadenasso Drive
Fairfield,
CA
94533
(707) 434-3808
First Transit, Inc.
600 Vine Street Suite 1400
Cincinnati,
OH
45202
(513) 684-8758
Fresno County Rural Transit Agency
2035 Tulare St., Ste. 201
Fresno,
CA
93721
(559) 233-6789
Gannett Fleming, Inc.
201 Mission Street, Suite 2200
San Francisco,
CA
94105
(415) 760-0346
GTrans
13999 S. Western Avenue
Gardena,
CA
90249
(310) 976-8888
Gerflor USA
595 Supreme Drive
Bensenville,
IL
60106
(877) 437-3567
GHI Energy, LLC
800 Bering Drive, Suite 301
Houston,
TX
77057
(281) 761-7835
Gillig LLC
451 Discovery Drive
Livermore,
CA
94551
(510) 785-1500
GIRO Inc.
75 Port-Royal Street East, Suite 500
Montreal (Québec),
OC
H3L 3T1
Canada
+(514) 383-0404
Gold Coast Transit
1901 Auto Center Drive
Oxnard,
CA
93036
(805) 483-3959
Golden Gate Bridge, Highway & Transportation District
1011 Andersen Drive
San Rafael,
CA
94901
(415) 923-2037
GreenPower Motor Company, Inc.
8885 Haven Avenue, Suite 150
Rancho Cucamonga,
CA
91730
(909) 954-7530
Hanover Displays, Inc.
1604 Tonne Rd
Elk Grove Village,
IL
60007
(773) 334-9934
Hanson Bridgett LLP
425 Market Street, 26th Floor
26th Floor
San Francisco,
CA
94105
(415) 777-3200
HdL Companies
120 S. State College Blvd
Suite 200
Brea,
CA
92821
(909) 861-4335
I/O Controls Corporation
1357 W. FOOTHILL BLVD.
Azusa,
CA
91702
(626) 653-1622
Imperial County Transportation Commission
1503 N. Imperial
Suite 104
El Centro,
CA
92243
(760) 592-4494
IntelliRide, A Division of Transdev
2222 Cuming Street
Omaha,
NE
68102
(402) 504-8254
James E. Brown & Associates
P.O. Box 2462
Sacramento,
CA
95812
Keolis North America
470 Atlantic Blvd
Boston,
MA
02110
(310) 303-2512
Kimley-Horn and Associates, Inc.
1300 Clay Street
Suite 325
Oakland,
CA
94612
(510) 350-0217
Lake Transit Authority
367 N State Street, #204
Ukiah,
CA
95482
(707) 234-3314
Lift-U
1638 Main Street
Escalon,
CA
95320
(209) 838-2400
Livermore/Amador Valley Transit Authority
1362 Rutan Court Suite 100
Livermore,
CA
94550
(925) 455-7564
Long Beach Transit
1963 E. Anaheim Street
Long Beach,
CA
90813
(562) 599-8565
Los Angeles County Metropolitan Transportation Authority
One Gateway Plaza
99-23-2
Los Angeles,
CA
90012
(213) 922-2122
LTK Engineering Services
811 W 7th Street Suite 500
Los Angeles,
CA
90017
(213) 683-1495
Luminator Technology Group
900 Klein Road
Plano,
TX
75074
(972)424-6511
Marin Transit
711 Grand Ave, Ste. 110
Suite 110
San Rafael,
CA
94901
(415) 226-0855
McElroy Freelance
811 25th Street
Sacramento,
CA
95816
(916) 877-6314
Medical Transportation Management
16 Hawk Ridge Drive
St. Louis,
MO
63367
(636) 695-5711
Metropolitan Transportation Commission
Bay Area Metro Center, 375 Beale Street, Suite 800
San Francisco,
CA
94105
(510) 817-5780
Minuteman West Consulting Group
PO Box 1755
Benicia,
CA
94510
(707) 741-7886
Montebello Bus Lines
400 S. Taylor Avenue
Montebello,
CA
90640
(323) 887-4605
Monterey-Salinas Transit
19 Upper Ragsdale Road, Suite 200
200
Monterey,
CA
93940
(888) 678-2871
Morongo Basin Transit Authority
62405 Verbena Rd.
Joshua Tree,
CA
92252
(760) 366-2986
MV Transportation, Inc.
479 Mason Street, Suite 221
Vacaville,
CA
95688
(951) 847-0023
N/S Corporation
235 W Florence Avenue
Inglewood,
CA
90301
(310) 330-1245
NABI Bus, LLC
33102 Canopy Lane
Lake Elsinore,
CA
92532
(909) 815-6827
National Express Transit Corporation
8041 Hosbrook Rd., Suite 330
Cincinnati,
OH
45236
(630) 441-7451
New Flyer, MCI and ARBOC
6200 Glenn Carlson Drive
St. Cloud,
MN
56301
Canada
(909) 527-3543
Nina Babiarz Consulting
7918 El Cajon Blvd., #N-313
La Mesa,
CA
91942
(619) 667-6636
North County Transit District
810 Mission Avenue
Oceanside,
CA
92054
(760) 966-6500
Nova Bus | Prevost
260 Banker Rd
Plattsburgh,
NY
12901
Orange County Transportation Authority
P.O. Box 14184
Orange,
CA
92863
(714) 668-4573
Orrick Herrington & Sutcliffe, LLP
405 Howard Street
San Francisco,
CA
94105
(415) 773-4261
WSP
425 Market Street, 17th Floor
San Francisco,
CA
94105
(415) 243-4755
Peninsula Corridor Joint Powers Board (JPB)
1250 San Carlos Avenue
San Carlos,
CA
94070
(650) 508-6221
Placer County Transit/Tahoe Area Regional Transit
3091 County Center Drive Suite 220
Auburn,
CA
95603
(530) 889-7582
Proterra, Inc.
1815 Rollins Road
Burlingame,
CA
94010
(415) 994-4346
Psomas Civil Engineers & Land Surveyors
100 Corporate Pointe #265
Culver City,
CA
90230
(310) 703-1371
Q'Straint / Sure-Lok
4031 NE 12th Terrace
Oakland Park,
FL
33334
(800) 987-9987
Radio Engineering Industries (REI)
6534 L St
Omaha,
NE
68117
(402) 339-2200
RATP Dev North America
3800 Sandshell Drive, Suite 180
Fort Worth,
TX
76137
(844) 278-7338
Redding Area Bus Authority
777 Cypress Avenue
Redding,
CA
96001
(530) 225-4170
Remix Software Inc
1128 Howard Street
San Francisco,
CA
94103
(415) 690-6010
Riverside County Transportation Commission
PO Box 12008
4080 Lemon Street
Riverside,
CA
92502
Stantec
523 West 6th Street, Suite 1200
Los Angeles,
CA
90014
(213) 955-3530
Romaine Electric
8811 So. 208th St.
Kent,
WA
98031
(800) 426-5005
Roseville Alternative Transportation Division
316 Vernon St.Suite 150
Roseville,
CA
95678
(916) 746-1320
RouteMatch Software
1230 Peachtree Street NE, Suite 2800
Atlanta,
GA
30309
(720)440-8163
S & A Systems, Inc.
992 Sids Road
Rockwall,
TX
75032
(972) 722-1009
Sacramento Area Council of Governments
1415 L Street #300
Sacramento,
CA
95814
(916) 340-6206
San Bernardino County Transportation Authority
1170 W. Third St., 2nd Floor
San Bernardino,
CA
92410
(909) 884-8276
San Diego Association of Governments
401 B Street Suite 800
San Diego,
CA
92101
(619) 699-6926
San Diego Metropolitan Transit System
1255 Imperial Avenue, Suite 1000
San Diego,
CA
92101
(619) 557-4513
San Francisco Bay Area Rapid Transit District
300 Lakeside Drive
18th Floor
Oakland,
CA
94612
(510) 464-6235
San Francisco Bay Area Water Emergency Transportation Authority
9 Pier Suite 111
San Francisco,
CA
94111
(415) 291-3377
San Francisco Municipal Transportation Agency
One South Van Ness Ave., 7th Floor
San Francisco,
CA
94103
(415) 701-4338
San Luis Obispo Council of Governments
1114 Marsh Street
San Luis Obispo,
CA
93401
(805) 781-5712
San Luis Obispo Regional Transit Authority
179 Cross Street
San Luis Obispo,
CA
93401
(805) 781-4472
San Mateo County Transit District
1250 San Carlos Avenue
San Carlos,
CA
94070
(650) 508-6221
Santa Barbara Metropolitan Transit District
550 Olive Street
Santa Barbara,
CA
93101
(805) 963-3364
Santa Clara Valley Transportation Authority
3331 North First Street, Building B-1st Floor
Office of the Board Secretary
San Jose,
CA
95134
(408) 321-5559
City of Santa Clarita
28250 Constellation Road
Santa Clarita,
CA
91355
(661) 295-6300
Santa Cruz Metropolitan Transit District
110 Vernon Street
Santa Cruz,
CA
95060
(831) 426-6080
Santa Maria Area Transit
110 S. Pine Street Suite 101
Santa Maria,
CA
93458
(805) 925-0951
Sardo Bus & Coach Upholstery
512 W Rosecrans Ave
Gardena,
CA
90248
(310) 327-0532
Safe Fleet Bus & Rail
Unit 111, 3B Burbidge Street
Coquitlam,
BC
V3K7B2
Canada
Shaw Yoder Antwih Schmelzer & Lange
1415 L Street
Suite 1000
Sacramento,
CA
95814
(916) 446-4656
Siemens Mobility, Inc.
Mobility Division - Rolling Stock
7464 French Rd
Sacramento,
CA
95828
(916) 681-3000
Simi Valley Transit
2929 Tapo Canyon Road
Simi Valley,
CA
93063
(805) 583-6456
Siskiyou County Transit
190 Greenhorn Rd
Yreka,
CA
96097
(530) 842-8220
SM Transit
15 E. Thurman
Suite A
Porterville,
CA
93257
(559) 782-7448
SmartDrive Systems
9515 Towne Centre Drive
San Diego,
CA
92121
(858) 225-5550
Solano Transportation Authority
One Harbor Center, Suite 130
Suisun City,
CA
94585
(707) 424-6075
Sonoma County Transit
355 West Robles Avenue
Santa Rosa,
CA
95407
(707) 585-7516
Sonoma-Marin Area Rail Transit (SMART)
5401 Old Redwood Hwy, Suite 200
Petaluma,
CA
94954
(707) 794-3330
Southern California Edison
2244 Walnut Grove Avenue
4th Floor
Rosemead,
CA
91770
Southern California Gas Company
P.O. Box 3150
San Dimas,
CA
91773
(714) 713-2846
Southern California Regional Rail Authority
900 Wilshire Blvd., Suite 1500
Los Angeles,
CA
90017
Southland Transit, Inc
3650 Rockwell Avenue
El Monte,
CA
91731
(626) 258-1310
Southwest Lift & Equipment, Inc
254 E. Valley Street
San Bernardino,
CA
92408
(909) 867-9820
Stanislaus Council of Governments
1111 I Street, Suite 308
Modesto,
CA
95354
(209) 525-4642
Stanislaus Regional Transit
1010 10th Street, Suite 4204
Modesto,
CA
95354
(209) 525-7569
STV Group, Inc.
9130 Anaheim Place, Suite 210
Rancho Cucamonga,
CA
91730
(909) 484-0660
SunLine Transit Agency
32-505 Harry Oliver Trail
Thousand Palms,
CA
92276
(760) 343-3097
GMV Syncromatics
523 W 6th St
Suite 444
Los Angeles,
CA
90014
(213) 973-1541
Tahoe Transportation District
128 Market Street, P.O. Box 5310
Stateline,
NV
89449
(775) 589-5284
Tehama County Transportation Commission
9380 San Benito Ave
Gerber,
CA
96035
(530) 385-1462
Thermo King Corporation
314 West 90th Street
Minneapolis,
MN
55420
(612) 366-1680
Thousand Oaks Transit
2100 Thousand Oaks Blvd.
Thousand Oaks,
CA
91362
(805) 449-2400
Token Transit, Inc.
3425 19th Street, #17
San Francisco,
CA
94110
Tolar Manufacturing Company
258 Mariah Circle
Corona,
CA
92879
(951) 808-0081
Torrance Transit System
20500 Madrona Avenue
Torrance,
CA
90503
(310) 781-6930
Transdev North America
720 E. Butterfield Road, Suite 300
Lombard,
IL
60148
(530) 321-0345
Transit Joint Powers Authority for Merced County
369 W. 18th St.
Merced,
CA
95340
(209) 723-3153
Transit Marketing Group, Inc.
6658 Gunpark Drive, Suite 102
Boulder,
CO
80301
(303) 530-1491
TransitGuard dba ThermoGuard
PO Box 3771
Pagosa Springs,
CO
81147
9702380300
TransLoc/DoubleMap
4505 Emperor Blvd., #120
Suite 700
Durham,
NC
27703
(919) 973-3800
TransTrack Systems, Inc.
5265 Rockwell Dr NE
Cedar Rapids,
IA
52402
(319) 361-0007
Trapeze Group
5060 Spectrum Way, Suite 200
Mississauga,
ON
L4W 5N5
(319) 743-1000
Trillium CNG
2929 Allen Parkway
Houston,
TX
77019
(713) 332-4859
TripSpark Technologies
1980 Matheson Blvd E
Unit D
Mississauga,
OC
L4W 5N3
Canada
(800) 784-9909
TSI Video
525 W. New Castle Street, Suite 1
Zelienople,
PA
16063
(410) 980-9696
Unitrans
One Shields Avenue
5 South Hall
Davis,
CA
95616
(530) 754-5814
USSC Group, Inc.
150 Gordon Drive, Suite 1
Exton,
PA
19341
Valley Power Systems, Inc.
425 S Hacienda Blvd.
City of Industry,
CA
91745
(626) 333-1243
Vapor-Ricon
1010 Johnson Drive
Buffalo Grove,
IL
60089
(847) 777-6465
Vehicle Technical Consultants, Inc.
PO Box 697
Beaumont,
CA
92223
(951) 897-6959
Ventura County Transportation Commission
751 E. Daily Drive
Suite 420
Camarillo,
CA
93010
(805) 642-1592
Victor Valley Transit Authority
17150 Smoke Tree Street
Hesperia,
CA
92345
(760) 948-4021
Victorious Gold Partners
1542 S. Grenoble Ave.
West Covina,
CA
91791
(626) 825-6598
Visalia Transit
425 E Oak Avenue Suite 201
Visalia,
CA
93291
(559) 713-4591
Voith Turbo, Inc.
210 Harris Avenue, Unit 1
Sacramento,
CA
95834
(916) 925-8241
WAVE
4752 West California Avenue, Suite B-400
Salt Lake City,
UT
84104
(435) 659-1331
Way Sine LLC
98-025 Hekaha St.
Building 2, Suite 7
Aiea,
HI
96701
(808) 387-5275
Western Contra Costa Transit Authority
601 Walter Avenue
Pinole,
CA
94564
(510) 724-3331
Yolo County Transportation District
350 Industrial Way
Woodland,
CA
95776
(530) 661-5816
Yuma County Intergovernmental Public Transportation Authority
2715 East 14th Street
Yuma,
AZ
85365
(928) 539-7076
ZF North America
777 Hickory Hills Drive
Vernon Hills,
IL
60061
(858) 481-0557
- ABC Companies
- Access Services
- Air and Lube Systems
- Alameda-Contra Costa Transit District
- Alexander Dennis, Inc.
- Allied Telesis, Inc
- Allison Transmission, Inc.
- Altamont Corridor Express
- American Moving Parts
- American Seating Company
- AMMA Transit Planning
- Anaheim Transportation Network
- AngelTrax
- Antelope Valley Transit Authority
- AP Bus Maintenance Consulting
- B & C Truck Electric Inc.
- BAE Systems
- Sedgwick
- BraunAbility
- BusStuf, Inc.
- BYD
- California Association for Coordinated Transportation
- California Department of Transportation - Division of Rail & Mass Transportation
- California Transit Association
- CALSTART
- Capitol Corridor Joint Powers Authority
- Cardinal Infrastructure, LLC
- Central Contra Costa Transit Authority
- Connectpoint Inc.
- City of Arcadia-Arcadia Transit
- City of Commerce
- City of Culver City
- City of Elk Grove, Transit Services
- City of Fresno/Department of Transportation/Fresno Area Express
- City of Los Angeles Department of Transportation
- City of Modesto Transit Division
- City of Petaluma
- City of Redondo Beach - Transit Division
- City of San Luis Obispo
- Clean Energy
- Clever Devices Ltd.
- Complete Coach Works
- Connexionz Limited
- Connixt, Inc.
- Contra Costa Transportation Authority
- Creative Bus Sales, Inc.
- Cummins Inc.
- Cummins Westport, Inc
- Daktronics Incorporated
- David Rzepinski
- De Leo Transportation Fabric
- Eastern Contra Costa Transit Authority
- Ecolane USA, Inc.
- El Dorado National - California, Inc.
- ELERTS Corp.
- Enghouse Transportation
- ETA Transit Systems
- Fairfield and Suisun Transit
- First Transit, Inc.
- Foothill Transit
- Fresno County Rural Transit Agency
- Gannett Fleming, Inc.
- GTrans
- Gerflor USA
- GHI Energy, LLC
- Gillig LLC
- GIRO Inc.
- Gold Coast Transit
- Golden Empire Transit District
- Golden Gate Bridge, Highway & Transportation District
- GreenPower Motor Company, Inc.
- Hanover Displays, Inc.
- Hanson Bridgett LLP
- HdL Companies
- Humboldt Transit Authority
- I/O Controls Corporation
- Imperial County Transportation Commission
- IntelliRide, A Division of Transdev
- James E. Brown & Associates
- Keolis North America
- Kimley-Horn and Associates, Inc.
- Kings County Area Rural Transit
- Lake Transit Authority
- Lift-U
- Livermore/Amador Valley Transit Authority
- Long Beach Transit
- Los Angeles County Metropolitan Transportation Authority
- LTK Engineering Services
- Luminator Technology Group
- Marin Transit
- McElroy Freelance
- Medical Transportation Management
- Mendocino Transit Authority
- Metropolitan Transportation Commission
- Minuteman West Consulting Group
- Montebello Bus Lines
- Monterey-Salinas Transit
- Morongo Basin Transit Authority
- MV Transportation, Inc.
- N/S Corporation
- NABI Bus, LLC
- Napa Valley Transportation Authority
- National Express Transit Corporation
- New Flyer, MCI and ARBOC
- Nina Babiarz Consulting
- North County Transit District
- Norwalk Transit System
- Nova Bus | Prevost
- Omnitrans
- Orange County Transportation Authority
- Orrick Herrington & Sutcliffe, LLP
- WSP
- Peninsula Corridor Joint Powers Board (JPB)
- Placer County Transit/Tahoe Area Regional Transit
- Proterra, Inc.
- Psomas Civil Engineers & Land Surveyors
- Q'Straint / Sure-Lok
- Radio Engineering Industries (REI)
- RATP Dev North America
- Redding Area Bus Authority
- Remix Software Inc
- Riverside County Transportation Commission
- Riverside Transit Agency
- Stantec
- Romaine Electric
- Roseville Alternative Transportation Division
- RouteMatch Software
- S & A Systems, Inc.
- Sacramento Area Council of Governments
- Sacramento Regional Transit District
- San Bernardino County Transportation Authority
- San Diego Association of Governments
- San Diego Metropolitan Transit System
- San Francisco Bay Area Rapid Transit District
- San Francisco Bay Area Water Emergency Transportation Authority
- San Francisco Municipal Transportation Agency
- San Joaquin Regional Transit District
- San Luis Obispo Council of Governments
- San Luis Obispo Regional Transit Authority
- San Mateo County Transit District
- Santa Barbara Metropolitan Transit District
- Santa Clara Valley Transportation Authority
- City of Santa Clarita
- Santa Cruz Metropolitan Transit District
- Santa Maria Area Transit
- Santa Monica's Big Blue Bus
- Santa Rosa CityBus
- Sardo Bus & Coach Upholstery
- Safe Fleet Bus & Rail
- Shaw Yoder Antwih Schmelzer & Lange
- Siemens Mobility, Inc.
- Simi Valley Transit
- Siskiyou County Transit
- SM Transit
- SmartDrive Systems
- Solano County Transit (SolTrans)
- Solano Transportation Authority
- Sonoma County Transit
- Sonoma-Marin Area Rail Transit (SMART)
- Southern California Edison
- Southern California Gas Company
- Southern California Regional Rail Authority
- Southland Transit, Inc
- Southwest Lift & Equipment, Inc
- Stanislaus Council of Governments
- Stanislaus Regional Transit
- Stratford & Associates, Inc.
- STV Group, Inc.
- SunLine Transit Agency
- GMV Syncromatics
- Tahoe Transportation District
- Tehama County Transportation Commission
- Thermo King Corporation
- Thousand Oaks Transit
- Token Transit, Inc.
- Tolar Manufacturing Company
- Torrance Transit System
- Transdev North America
- Transit Joint Powers Authority for Merced County
- Transit Marketing Group, Inc.
- TransitGuard dba ThermoGuard
- TransLoc/DoubleMap
- TransTrack Systems, Inc.
- Trapeze Group
- Trillium CNG
- TripSpark Technologies
- TSI Video
- Union City Transit
- Unitrans
- USSC Group, Inc.
- Valley Power Systems, Inc.
- Vapor-Ricon
- Vehicle Technical Consultants, Inc.
- Ventura County Transportation Commission
- Victor Valley Transit Authority
- Victorious Gold Partners
- Visalia Transit
- Voith Turbo, Inc.
- WAVE
- Way Sine LLC
- Western Contra Costa Transit Authority
- Yolo County Transportation District
- Yuba-Sutter Transit
- Yuma County Intergovernmental Public Transportation Authority
- ZF North America