Licensed Contractors in Knightsen, California
Knightsen has 21 licensed contractors registered with the California Contractors State License Board across 18 trade classifications. The most common specialties are Landscaping Contractor (4), Electrical Contractor (3), Synthetic Products (2). 8 contractors hold general contractor licenses (Class A or B).
All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.
Contractors by Classification
General Contractors
Specialty Contractors
C-27: Landscaping Contractor
(4)
C-10: Electrical Contractor
(3)
D12: Synthetic Products
(2)
C-36: Plumbing Contractor
(2)
C-39: Roofing Contractor
(2)
C-7: Low Voltage Systems Contractor
(1)
C-60: Welding Contractor
(1)
C-16: Fire Protection Contractor
(1)
D34: Prefabricated Equipment
(1)
C-21: Building Moving/Demolition Contractor
(1)
Kenneth Ferrante
Active
License #519304
A
Knightsen, CA
Est. 1987
The Clean Sweep
Active
License #549745
D34
Knightsen, CA
Est. 1988
Delta Grinding Company Inc
Active
License #736914
A
Knightsen, CA
Est. 1997
B & M Tear Off Inc
Active
License #769864
C-21, C-22 +1 more
Knightsen, CA
Est. 1999
Daniel Bryan Greeson
Active
License #804690
B, C-4 +5 more
Knightsen, CA
Est. 2002
Bay Cities Construction
Active
License #852300
B
Knightsen, CA
Est. 2005
Absolute Electric
Active
License #876262
C-10
Knightsen, CA
Est. 2006
Machado Landscape Design
Active
License #919830
C-27
Knightsen, CA
Est. 2008
West Coast Preservation
Active
License #938164
B
Knightsen, CA
Est. 2009
Aj'S Landscaping
Active
License #966319
C-27, C-53
Knightsen, CA
Est. 2011
Countertops By Steve
Active
License #984240
D12
Knightsen, CA
Est. 2013
License #1016216
B
Knightsen, CA
Est. 2016
Mastic Master
Active
License #1052924
D12
Knightsen, CA
Est. 2019
Artistic Landscape
Active
License #1052964
C-27
Knightsen, CA
Est. 2019
All Pro Communications
Active
License #1057838
A, C-7 +1 more
Knightsen, CA
Est. 2019
Modern Oak Landscaping
Active
License #1104392
C-27
Knightsen, CA
Est. 2023
Amores Mechanical Inc
Active
License #1116926
C-36
Knightsen, CA
Est. 2024
License #1119169
B
Knightsen, CA
Est. 2024
Frontline Fire Protection
Active
License #1134946
C-16
Knightsen, CA
Est. 2025
Lb Roof Removal
Active
License #1137821
C-39
Knightsen, CA
Est. 2025
Westside Welding
Suspended
License #1098634
C-60
Knightsen, CA
Est. 2022