San Diego · B2B mid-market

Fractional CTO San Diego — senior technical leadership and architecture for operators here.

Treetop works with B2B mid-market companies in San Diego and across California. If you're a founder or CEO between $1M and $30M ARR considering a fractional CTO, here's the San Diego-specific context and engagement model.

Short answer

Treetop offers fractional CTO services in San Diego, CA. Engagements run $10K-$25K/month for B2B companies needing senior technical leadership and architecture without a full-time hire. Remote-first with quarterly in-person on-site for San Diego clients when scope warrants.

San Diego's B2B market context

San Diego's B2B ecosystem in 2026 is centered around biotech tools, defense tech, B2B SaaS, healthcare tech, gaming, telecom infrastructure. For fractional CTO engagements specifically, this means:

Buyer rhythm matches the industries above — sales cycles, evaluation patterns, decision-maker profiles vary by sector
Talent market for senior fractional operators is meaningful — you have real options without paying coastal-tier rates
Most B2B buyers in San Diego want substance over hype — marketing/sales/finance that lands here translates well elsewhere
Pipeline rhythm rewards consistency more than peaks — quarterly cadence beats one-off campaigns

Treetop's San Diego engagement model

Remote-first with quarterly on-site. Quarterly in-person leadership offsites for San Diego engagements where scope warrants.
1-2 days per week typical. Fractional means fractional — defined cadence, not always-on.
Builder profile. We ship work; we don't just present strategy.
AI-fluent. Modern fractional CTO work compounds with AI workflows. We bring those.
12-18 month engagements typical for compounding outcomes.

Scope of work typically includes: technical strategy, architecture decisions, engineering team leadership, M&A diligence.

When to consider Treetop specifically

You're a B2B founder/CEO at $1M-$30M ARR.
You're in San Diego or open to a remote-first engagement with quarterly on-site.
You want senior technical leadership and architecture without a $300K+ full-time hire.
You want a fractional CTO who personally uses AI tooling, not just talks about it.
You can commit $10K-$25K/month for 12-18 months.

FAQ

Do you work with companies in San Diego?

Yes. Treetop works remotely with B2B mid-market clients in San Diego and across California. In-person quarterly on-site available for San Diego-based clients when scope warrants.

Are you based in San Diego?

Treetop is based in Austin, TX. We work with clients across the US remotely with in-person quarterly on-site when warranted.

What's a typical fractional CTO engagement cost?

$10K-$25K/month depending on time commitment and scope. Typically 12-18 month engagements.

How do I start an engagement?

Book the $1,500 AI Audit as a low-commitment first engagement, or schedule a call directly.