| Mid Coast Glass | Ryan Denis Fruge | ryan@apexautoglass.net | (805) 736 5811 | Windows, patio, painters | Lompoc · Santa Barbara County | — | — |
| Mid Coast Glass | Mid Coast Glass | ryan@apexautoglass.net | (805) 736 5811 | Windows, patio, painters | Lompoc · Santa Barbara County | — | — |
| Mid State Fence | Mid State Fence | — | (805) 345 0896 | Other | Santa Maria · Santa Barbara County | — | — |
| Midcoast Construction | Jeffrey Scott Sr Walters | — | (805) 886 3229 | GC, remodel, ADU | Lompoc · Santa Barbara County | — | — |
| Mighty Tree Company | Fernando Rene Rodriguez | dev@bizcor.com | (805) 264 1309 | Tree | Santa Maria · Santa Barbara County | — | — |
| Miguel Cavazos Landscaping INC | Miguel Angel Cavazos | — | (805) 314 2002 | Windows, patio, painters | Santa Maria · Santa Barbara County | — | — |
| Miguel Labastida Woodworks | Miguel Labastida Woodworks | — | (805) 699 1867 | Other | Lompoc · Santa Barbara County | — | — |
| Miguel Ramirez Perez | Miguel Ramirez Perez | — | (805) 886 2022 | Other | Santa Barbara · Santa Barbara County | — | — |
| Miguel's Custom Carpet | Miguel's Custom Carpet | — | (805) 310 9931 | Other | Santa Maria · Santa Barbara County | — | — |
| Mike Barron Plumbing | Mike Barron Plumbing | — | (805) 315 6592 | Other | Lompoc · Santa Barbara County | — | — |
| Mike Kelley Construction INC | Blake Evan Kelley | blakekelley.mkc@gmail.com | (805) 730 7818 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Mike Kelley's Plumbing Repairs | Mike Kelley's Plumbing Repairs | — | (805) 406 2192 | Other | Santa Maria · Santa Barbara County | — | — |
| Mike Payne Electric | Michael Edward Payne | — | (805) 865 2853 | Electricians | Lompoc · Santa Barbara County | — | — |
| Mike Quinn Drywall | Mike Quinn Drywall | — | (805) 729 8076 | Other | Santa Barbara · Santa Barbara County | — | — |
| Mike Rider Construction | Michael Ray Rider | — | (805) 729 0449 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Mike's Heating & Air | Mike's Heating & Air | — | (530) 365-2060 | HVAC | Santa Barbara · Santa Barbara County | — | — |
| Miles Rucker Custom INC DBA Miles Rucker Custom Woodwork | Miles Alexander Rucker | — | (805) 705 7666 | Other | Buellton · Santa Barbara County | — | — |
| Miller Group Construction And Development | Frank Robert Iii Miller | — | (805) 969 4761 | GC, remodel, ADU | Santa Barbara · Santa Barbara County | — | — |
| Minnoch Concrete | Minnoch Concrete | — | (805) 280 3395 | Other | Santa Maria · Santa Barbara County | — | — |
| Miramar Mfg INC | Eric Stephan Maulhardt | eric@miramarmfg.com | (805) 901 4196 | Windows, patio, painters | Carpinteria · Santa Barbara County | — | — |
| Miranda Plumbing INC | Miranda Gonzalez Israel | — | (805) 708 8891 | Other | Santa Barbara · Santa Barbara County | — | — |
| Miranda's Landscaping INC | Jacob Ferrel Miranda | — | (805) 922 6524 | Windows, patio, painters | Santa Maria · Santa Barbara County | — | — |
| Mission Audio/video INC | William Henry Janka | — | (805) 682 7575 | Other | Santa Barbara · Santa Barbara County | — | — |
| Mission City Property Management | Mission City Property Management | — | (805) 319-7000 | Property managers | Santa Barbara · Santa Barbara County | — | — |
| Mission Creek Painting | Michael Anthony Ruiz | info@missioncreekpainting.com | (805) 266 8940 | Windows, patio, painters | Santa Barbara · Santa Barbara County | — | — |
| Mission Paving | Perez Joel | info@missionpaving.com | (626) 452-8200 | Other | Santa Maria · Santa Barbara County | — | — |
| Mission Plumbing INC | Leighton Taylor Jones | interested@domainmarket.com | (805) 729 1393 | Other | Goleta · Santa Barbara County | — | — |
| Mission Security & Patrol | Mission Security & Patrol | — | (805) 899-3039 | Alarm and generators | Santa Barbara · Santa Barbara County | — | — |
| Mitch Williams Construction INC | Mitchel Charles Williams | info@mwcinc.net | (805) 563 2884 | GC, remodel, ADU | Los Olivos · Santa Barbara County | — | — |
| Mitchell Construction | Samuel Joe Mitchell | — | (661) 817 3116 | GC, remodel, ADU | Lompoc · Santa Barbara County | — | — |
| Miyade Arbor Services | Robert Kazunori Miyade | — | (805) 452 7359 | Tree | Santa Barbara · Santa Barbara County | — | — |
| Mk Williams Plumbing & Fire Sprinklers INC | Mark Keith Williams | — | (805) 934 4527 | Other | Santa Maria · Santa Barbara County | — | — |
| Mlc Painting | Mlc Painting | — | (820) 300 8891 | Windows, patio, painters | Santa Maria · Santa Barbara County | — | — |
| Mm Appliance Installations | Rayner Arturo Gomez Nava | contact@mmapplianceinstallations.com | (805) 869 8390 | Other | Santa Barbara · Santa Barbara County | — | — |
| Mm Central Coast Landscape INC | Miguel Angel Medina | mmedina3@outlook.com | (805) 245 2313 | Windows, patio, painters | Solvang · Santa Barbara County | — | — |
| Mobile Volt Professionals LLC | Zachary James Sumner | — | (805) 868 8681 | Other | Santa Maria · Santa Barbara County | — | — |
| Modern Floors INC | Antonio Trujillo | — | (805) 688 9796 | Other | Solvang · Santa Barbara County | — | — |
| Modern Welding And Design | Kyle J Mitchell | — | (805) 878 8175 | Other | Santa Maria · Santa Barbara County | — | — |
| Moe's Plumbing | Joseph Michael Crawford | — | (805) 688 6500 | Other | Santa Ynez · Santa Barbara County | — | — |
| Monarch Electric LLC | Raul Alfonso Lopez | customersupport@monarchelectric.com | (609) 900-7679 | Electricians | Santa Maria · Santa Barbara County | — | — |