Audiff Marine in Costa Mesa. Nothing fancy, but honest and does good timely work, at least in my experience.
Also has a ton of used parts for the costly jobs, like when our lower unit cowl cracked, OEM from Yamaha was gonna be like 2K installed, got it done there with a rebuilt used lower for 25% of that with a complete season service tossed in.
Can't find the number right now, will post after kids go to bed.