Fractional CFO Services Across Southern California
Mainstreet IQ is based on California's Central Coast — home market for Santa Barbara and San Luis Obispo County — and serves growing companies throughout Ventura, Los Angeles, and Orange County. Hybrid engagements: on-site for the work that benefits from physical presence, remote for everything else.
Five Counties. One Operating Framework.
Each market has its own economic mix — wine, DTC, tech, hospitality, biotech, manufacturing — but every engagement runs on the RAID Framework. Pick your county to see the industries we focus on locally.
Central Coast
Santa Barbara County
Wine, DTC, tech, and hospitality from Santa Ynez and the Sta. Rita Hills to Goleta, downtown Santa Barbara, and Carpinteria.
Explore Santa Barbara County →
Central Coast
San Luis Obispo County
Paso Robles wine country, coastal hospitality, SLO and Cal Poly-fed tech, and DTC brands across North County and the SLO Coast.
Explore SLO County →
Southern California
Ventura County
Thousand Oaks biotech, Simi Valley precision manufacturing, Oxnard and Camarillo DTC brands, and hospitality along the coast and Conejo corridor.
Explore Ventura County →
Southern California
Los Angeles
Entertainment, DTC and ecommerce, apparel, and PE-backed companies across LA's diverse economic base.
Explore Los Angeles →
Southern California
Orange County
Tech and SaaS companies along the Irvine corridor, ecommerce and DTC brands, medical devices, and franchises.
Explore Orange County →Based on the Central Coast. Serving Nationwide.
Mainstreet IQ operates from California's Central Coast because that's where we live and where our deepest client relationships are. For local clients, that means genuine on-site presence — board meetings, team working sessions, close process overhauls — not a consultant parachuting in from out of state.
Outside the five counties above, we serve clients nationwide. Most engagements are hybrid by design. If the work benefits from being in the room, we're there. If it doesn't, we work remote. Geography stops being a barrier once the reporting layer is built.