How much does a fractional Chief Technology Officer cost?
A fractional CTO costs $175 to $400 per hour, or $7,000 to $18,000 a month on retainer for 10 to 20 hours a week. Technical due-diligence projects run 2 to 4 weeks at a fixed fee. A full-time CTO costs $250,000 to $400,000 fully loaded, so fractional fits companies with a product but no senior technical leader.
Fractional CTO rates at a glance
| Basis | Range (US, 2026) |
|---|---|
| Hourly | $175 to $400 |
| Monthly retainer | $7,000 to $18,000 |
| Full-time equivalent (loaded) | $250,000 to $400,000 per year |
Rates by company stage
| Stage | Monthly retainer | Typical scope |
|---|---|---|
| Pre-seed / MVP | $5,000 to $9,000 | Architecture decisions, first engineering hires |
| Seed to Series A | $7,000 to $14,000 | Roadmap, team leadership, scaling the stack |
| Growth | $12,000 to $18,000 | Org design, security and compliance, vendor strategy |
| Due-diligence project | Fixed fee | 2 to 4 week technical assessment for investors or acquirers |
What drives the rate
Rates rise with security and compliance depth (SOC 2, HIPAA), domain complexity (fintech, healthcare, hardware), and proven scaling experience. A CTO who has taken a team from 5 to 50 engineers or shipped through a SOC 2 audit charges more than a strong individual engineer moving into leadership.
FAQs
How much does a fractional CTO cost per month?
Most fractional CTO retainers run $7,000 to $18,000 a month for 10 to 20 hours a week. Pre-seed and MVP-stage work starts around $5,000 to $9,000, while growth-stage engagements with org design and compliance reach $12,000 to $18,000.
What is the hourly rate for a fractional CTO?
Hourly rates run $175 to $400. The top of the band goes to operators with security and compliance depth or experience scaling an engineering org. Due-diligence work is usually a fixed project fee rather than hourly.
Is a fractional CTO cheaper than a full-time CTO?
Yes. A full-time CTO costs $250,000 to $400,000 a year fully loaded plus meaningful equity. A fractional CTO gives you senior technical judgment at $7,000 to $18,000 a month, which fits companies that have engineers but no senior technical leader.
What does a fractional CTO charge for due diligence?
Technical due diligence is typically a fixed-fee project running 2 to 4 weeks. The CTO assesses the codebase, architecture, team, and security posture for an investor or acquirer, then delivers a written report. Pricing depends on scope, not hours.
How many hours does a fractional CTO work?
Usually 10 to 20 hours a week for one client. Early-stage companies making architecture decisions may need more upfront, then taper to a steady advisory and oversight cadence as the team matures.