A fractional CTO costs about $900 to $15,000 a month at the prices providers publish themselves, checked on 10 November 2026. The low end is about one day a month of advice; the top is an embedded CTO who runs the engineering team. A full-time CTO costs far more. The Bureau of Labor Statistics puts the median pay of computer and information systems managers, the occupation that includes CTOs, at $175,140 a year (May 2025), before benefits, equity and recruiting.
Every provider rate below comes from that provider's own price page, opened today, and the salary and benefit figures come from bls.gov. Most fractional CTOs publish no prices at all. The ones that do are a small sample, so read their numbers as reference points, not a market survey. This guide is written for a CEO, COO or founder of a company with somewhere between a handful and a few hundred people who has to decide how to buy senior technical judgment.
Fractional CTO pricing at a glance
Three providers that publish their own rates, with what each tier includes. Reflekt Lab is a European firm that converts its euro prices to US dollars on the page; Lean Studio is run from Argentina by Ezequiel Actis Grosso; CTO on Demand prices in US dollars and says its retainer is the same wherever the client is.
| Provider | Model | Published price | What it includes | Terms |
|---|---|---|---|---|
| Reflekt Lab | Hourly, billed by the minute | $115–$210 an hour | Time actually spent; board-facing work, a sale or a regulated product sit at the top | First 90 days agreed up front, then month to month |
| Reflekt Lab | About one day a month (8 hours) | About $900–$1,700/mo | Weekly leadership session, monthly written update, decisions that cannot wait | As above |
| Reflekt Lab | About two days (16 hours) | About $1,800–$3,400/mo | Adds a standing slot with the engineering team: architecture review, technical design, hiring | As above |
| Reflekt Lab | About three days (24 hours) | About $2,800–$5,000/mo | Adds a migration, security push, fundraise or sale running at the same time | As above |
| Lean Studio | Advisory | $5,000/mo | Weekly strategy session, architecture reviews, hiring help, board and investor preparation | Month to month, no hourly billing |
| Lean Studio | Advisory + MVP | $5,000–$8,000/mo | Adds one bounded MVP or proof-of-concept slice a month | Month to month |
| Lean Studio | Embedded CTO | $10,000–$15,000/mo | Adds team management, roadmap ownership, vendor calls and high-stakes decisions | Cancel with two weeks' notice |
| Lean Studio | Fixed-fee assessment | From $4,000 | Technical, team or production-readiness assessment with a prioritized 30-day plan | One-off |
| CTO on Demand | Retainer | $5,000–$15,000/mo | 10–20 hours a week in its tables (its model section says 10–40) | Page updated July 2026 |
| CTO on Demand | Paid first session | $750 | 90 minutes with a CTO, credited toward any engagement | One-off |
Sources: Reflekt Lab (page dated 26 October 2026), Lean Studio (no date on the page) and CTO on Demand, all opened 10 November 2026. CTO on Demand's page lists two different hour ranges for the same retainer, so confirm the hours in writing before you sign.
The three ways fractional CTOs charge
Hourly
Hourly billing suits occasional work: a decision that needs a second opinion, a vendor proposal to check, a few calls before a board meeting. Reflekt Lab charges $115 to $210 an hour and bills by the minute. The other two providers do not bill by the hour; Lean Studio says so outright.
For scale, BLS gives the median hourly pay of computer and information systems managers as $84.20. Employers pay benefits on top. In the BLS Employer Costs for Employee Compensation release for June 2026, private-industry management, business and financial occupations cost $59.85 an hour in wages and $28.78 in benefits, so benefits are 32.5% of total compensation, or about 48 cents per dollar of wages. By our arithmetic, a median manager's hour costs an employer about $125 with benefits. An hourly fractional rate of $115 to $210 is in the same range as an employed manager's loaded hour, and you pay only for the hours you use.
The risk is an open-ended bill. Agree a monthly cap and a written note of what each block of hours produced.
Monthly retainer
A retainer is the most common published model. The price follows two things: how many hours a month you get, and how much responsibility the CTO carries. Advice and reviews cost less than running a team.
| Level | Published price range | What you get | Who it suits |
|---|---|---|---|
| Advisory, about 1–2 days a month | About $900–$5,000/mo | A weekly or regular session, written updates, architecture and hiring decisions | A company with a capable engineering lead who needs senior judgment above them |
| Active, about 3 days a month or advice plus a small build | About $2,800–$8,000/mo | The above, plus a project such as a migration, a security push, a fundraise or an MVP slice | A company in the middle of a change that will be expensive to reverse |
| Embedded | $5,000–$15,000/mo | Runs the engineering team: 1:1s, delivery rhythm, roadmap, vendors | A company with engineers and no technical executive |
The ranges overlap because providers package differently. Compare on hours a month, who is accountable for what, and the notice period, not on the tier name.
Equity
None of the three providers publishes an equity option. Equity-only and cash-plus-equity arrangements are negotiated privately, and there is no official rate card. The nearest published reference is the Founder Institute's free FAST agreement (Founder/Advisor Standard Template), which sets advisor equity by company stage and how much the advisor does:
| Advisor role | Pre-seed | Seed | Series A |
|---|---|---|---|
| Standard: monthly meetings | 0.50% | 0.25% | 0.10% |
| Expert: adds contacts and projects | 1.00% | 0.75% | 0.50% |
The template includes a three-month cliff, and the Founder Institute's own example vests the equity over two years. FAST was written for advisors. A fractional CTO who runs your engineering team does more than an advisor, so treat the matrix as a reference for an advisory role, not a price list for an executive one.
Equity is not free. As an example, 0.5% of a company later sold for $20 million is $100,000, paid by the founders and investors at exit. If cash is tight, a common middle path is a smaller cash retainer plus a vesting grant, with the hours and the vesting tied to the same written scope.
What a full-time CTO costs
BLS does not publish a separate CTO occupation. It lists chief technology officer as one of the titles of computer and information systems managers, and it says CTOs and other senior managers usually need many years of experience. Because the occupation also covers IT managers and directors, expect a CTO offer to sit in the upper part of its pay range rather than at the median. These are the BLS figures for May 2025, with benefits added at the June 2026 ECEC ratio for management, business and financial occupations (our arithmetic):
| Point in the BLS pay range | Annual wage | With benefits (wage × 1.48) | Per month with benefits |
|---|---|---|---|
| Lowest 10% earn less than | $107,550 | $159,268 | $13,272 |
| Median | $175,140 | $259,359 | $21,613 |
| Highest 10% earn more than | $297,510 | $440,573 | $36,714 |
By industry, BLS gives median annual wages of $200,510 in information, $182,510 in finance and insurance and $179,510 in computer systems design and related services. The table leaves out three costs that BLS does not measure for this role: recruiting fees, the equity grant a CTO usually expects, and the months it takes to hire. BLS also notes that most of these managers work full time and some work more than 40 hours a week.
Worked examples: three company sizes
The company profiles and hours below are example inputs; the prices are the published ones above, and the totals are our arithmetic.
Example 1: seed stage, 8 people, no technical co-founder
An investor wants the architecture reviewed, and the founders need someone to make stack and hiring decisions about one day a month.
- Fractional: Reflekt Lab's one-day tier at about $900–$1,700 a month is $10,800–$20,400 a year. Adding a fixed-fee technical assessment from $4,000 (Lean Studio's published starting price) brings year one to about $14,800–$24,400.
- Equity instead: under FAST, an expert advisor at pre-seed would get 1.00%, vesting over time.
- Full-time: even at the BLS 10th-percentile wage, a hire costs about $159,268 a year with benefits.
At this size the decision is easy. Buy advice by the day and spend the difference on the first engineers.
Example 2: Series A, 40 people, a team of eight engineers with a lead
The engineering lead runs delivery. The company needs a senior person for architecture, the hiring bar, security questions from customers and board conversations.
- Fractional: Lean Studio's Advisory retainer at $5,000 a month is $60,000 a year. Reflekt Lab's three-day tier, $2,800–$5,000 a month, is $33,600–$60,000.
- Full-time: at the BLS median, about $259,359 a year with benefits.
- Difference: about $199,000 a year against the $60,000 retainer, before the CTO's equity grant.
The saving is real, but so is the gap in presence. A fractional CTO is not in every standup or on call for every incident. That works when the engineering lead is strong and the CTO's job is decisions, not daily management.
Example 3: a 150-person company with 25 engineers and no technical executive
The engineering team needs someone to run it: 1:1s with leads, roadmap, vendor contracts, and an owner for outages and security reviews.
- Fractional, embedded: $10,000–$15,000 a month at Lean Studio's Embedded tier, or $120,000–$180,000 a year. CTO on Demand's published retainer tops out at the same $15,000.
- Full-time: about $259,359 a year with benefits at the BLS median, and $440,573 at the 90th-percentile wage.
- Ratio: $180,000 is about 69% of the loaded median.
When an embedded fractional CTO costs two-thirds of a full-time one, the case for fractional becomes a timing argument. It covers the months while you hire, and a good fractional CTO helps write the role and interview the candidates.
When a fractional CTO is worth it, and when it is not
It is usually worth it when:
- You are making technical decisions that will be expensive to reverse, such as a platform, a data model or a build-versus-buy call on AI.
- An investor, buyer or large customer will review the codebase. Our technical due diligence checklist lists what they look at.
- You inherited a system, or a vendor built it, and you need an honest read before you spend more.
- You need senior judgment for some hours a month, not 40 hours a week.
- You are hiring a full-time CTO and need someone to define the role and run technical interviews.
It is usually not worth it when:
- Technology is the core product and you can hire a full-time CTO now. Do that.
- You need someone in the daily rhythm of the team and on call for incidents. A few days a month cannot do that job.
- You want a signature on a decision already made. A good fractional CTO will write down what they find.
A rule of thumb we use: when the retainer passes about two-thirds of a loaded full-time salary, or the role needs more than three days a week, start the full-time search.
Costs and terms to check before you sign
- Hours and overage. Get the monthly hours in writing, and what happens when a crisis needs more. CTO on Demand's page shows two hour ranges for one retainer, which is why this matters.
- Minimum term and notice. Reflekt Lab agrees the first 90 days up front; Lean Studio is month to month, with two weeks' notice on its Embedded tier.
- Who builds what gets decided. An advisor's decisions still need engineers. A plan with no team behind it moves the cost, it does not remove it.
- Availability. Fractional CTOs work for several clients. Agree response times for incidents and customer security reviews.
- IP, confidentiality and access. Sign an NDA and an IP assignment before code is shared, and give read-only, time-limited access for reviews.
- Paid diagnostics. A paid first session or assessment is reasonable. Ask whether it is credited, as CTO on Demand's $750 session is.
- Equity paperwork. If equity is part of the deal, write down the vesting, the cliff and what happens if the engagement ends early.
Our guides to questions to ask an AI agency and the hidden costs of AI projects cover the same contract traps from the vendor side.
How Gigabit does fractional CTO work
Our fractional CTO and technical due diligence service puts a senior Gigabit engineer in the technical lead's seat: architecture and roadmap decisions, AI strategy, code and vendor reviews, and the hiring bar. Due diligence ends in a written report with severity-ranked findings and a costed plan. We sign an NDA before any code is shared, and reviews run on read-only, time-limited access.
The difference from a solo advisor is the team behind the engineer, which can build, fix or migrate what a review finds. We do not publish an hourly or monthly fractional CTO rate; the service page explains how the scope and the price are set before work starts. If the job is one app built with Lovable, Bolt, Replit, Cursor or Claude Code, our Prototype Production Review is the narrower, fixed-scope option. If the question is where AI fits in the business, the AI Transformation Sprint maps it and ends in a pilot. And if the answer is senior engineers inside your team rather than one advisor, see embedded AI teams.
