Full On Consulting provides fractional CTO services, part-time CTO retainers, and CTO advisory services to growth-stage and mid-market organizations that need hands-on technical leadership without a full-time executive hire. Our fractional chief technology officers are former enterprise CTOs — not consultants playing the role — who provide ongoing technology strategy, architecture governance, engineering oversight, and technical leadership consulting tailored to your company's size, stage, and platform.
Most fractional CTOs are former engineering managers or startup founders. That's not the same as having led technology at enterprise scale.
Every Full On Consulting fractional CTO is a former enterprise CTO or senior technology executive — someone who has owned the architecture, led the engineering organization, and reported to the CEO and board at a company with real complexity. You get the judgment that comes from having actually done it — not just advised on it.
Fractional CTO vs. Interim CTO — What's the Difference?
Two very different needs — and choosing the wrong model means either overspending or being underserved.
Fractional CTO
- Part-time, ongoing retainer — typically 1–3 days per week
- No full-time CTO exists — the role has never existed or doesn't justify full-time
- Strategic technical leadership — architecture governance, platform strategy, engineering oversight
- Long-term relationship — builds deep context about your platform, team, and roadmap
- $8,000–$20,000/month — vs. $400,000+ fully loaded cost of a full-time CTO
Right for: Companies with an engineering team but no technical executive
Interim CTO
- Full-time, temporary placement — the person IS your CTO while they're engaged
- Fills a vacant seat — your CTO departed or you're between hires
- Day-to-day engineering leadership — runs the team, owns architecture, drives delivery
- Fixed engagement duration — typically 6–18 months
- $20,000–$40,000/month — appropriate for full-time technical leadership
Right for: Organizations with a vacant CTO seat needing full-time technical leadership
Is a Fractional CTO Right for Your Organization?
The companies that benefit most share a common pattern: they have engineering capability but lack the technical executive leadership to make it strategic.
You have a development team or engineering staff, but no technical executive making architecture decisions
You're scaling fast and the technology choices being made today will constrain you in 18 months
Your platform has accumulated significant technical debt and no one is governing the architectural direction
You're planning a digital transformation or platform modernization and need a technical lead who can own the vision
You're executing a cloud migration and need architecture authority — not just a project manager
You're PE-backed and need technical leadership to support value creation or prepare for an exit
A potential investor or acquirer wants to evaluate your technology — and you need an experienced CTO in the room
You want the technical vision of a seasoned CTO at 20–30% of the full-time cost, without the equity and hiring risk
What a Fractional CTO From Full On Consulting Actually Does
A fractional CTO doesn't write architecture documents and disappear. They operate as your technical executive — making decisions, governing the platform, leading the engineering organization, and representing technology at the executive level.
Architecture Strategy & Governance
Define the target architecture, establish standards and review processes, govern technology decisions across the engineering team, and prevent the compounding technical debt that comes from inconsistent architectural choices.
Engineering Team Leadership
Provide technical direction to your engineering teams, establish delivery governance, assess engineering capability, make hiring recommendations, and build the technical organization structure your growth stage requires.
Cloud & Platform Strategy
Define your cloud strategy, govern the migration roadmap, evaluate infrastructure vendors, and ensure the platform decisions being made today support your technical and business goals — not just short-term convenience.
Technology Roadmap & Investment
Build a technology roadmap aligned to business objectives. Translate architecture priorities into business investment decisions that CEOs and CFOs can evaluate, approve, and communicate to the board.
Vendor & Partner Governance
Evaluate technology vendors, govern implementation partners, hold SaaS and infrastructure vendors accountable to their commitments, and ensure your technology spend is delivering value — not just burning budget.
Security & Technical Risk
Govern the technical risk posture of your platform — architecture vulnerabilities, infrastructure exposure, third-party dependencies, and the technical risk areas that investors and acquirers will scrutinize in due diligence.
The Fractional CTO Cost Advantage
A fractional CTO delivers the technical vision and architecture governance of a seasoned technology executive — at a fraction of the cost of a permanent hire, and available in days rather than months.
Full-Time CTO Hire
$400K+
per year (fully loaded: salary, bonus, benefits, equity)
Plus 6–12 month recruiting timeline. Plus equity dilution. Plus 90+ days to ramp. Plus severance risk if it doesn't work out.
Fractional CTO Retainer
$8–20K
per month — former enterprise CTO, 1–3 days/week
Engaged in days, not months. No equity. No hiring risk. Scale up or down as your needs change.
Annual Savings
50–75%
typical savings vs. a full-time CTO hire
With equivalent or greater strategic impact — because our fractional CTOs have already solved your architecture problems before.
Fractional CTO Use Cases — Where We Deliver the Most Value
The specific scenarios where a fractional CTO engagement consistently delivers outsized impact.
Growth-Stage Companies Scaling Engineering
You have 10–50 engineers, but no technical executive. Architecture decisions are being made by lead developers with no organizational authority to enforce standards. Technical debt compounds with every sprint. A fractional CTO establishes governance, standards, and strategic direction before the debt becomes unmanageable.
PE-Backed Portfolio Companies
Private equity firms use fractional CTOs to drive value creation during the hold period — modernizing platforms, reducing technical risk, and building the technical organization that supports an exit at a higher multiple. No permanent headcount added to the portfolio company.
Technical Due Diligence & Pre-Exit Preparation
A fractional CTO provides the technical credibility and assessment capability that investors and acquirers expect. We assess your architecture, identify risk, and present the platform story in terms that financial buyers can evaluate. And we identify the gaps before the buyer's technical team does.
Platform Modernization & Digital Transformation
Moving off a legacy platform or executing a digital transformation without a technical executive is one of the highest-risk decisions a company can make. A fractional CTO defines the target architecture, governs the implementation partner, and ensures the platform decisions made today support the business for the next five years.
Cloud Migration & Infrastructure Strategy
Cloud migrations fail when driven by project managers without architectural authority. A fractional CTO owns the cloud strategy, designs the target state architecture, evaluates vendor options, and governs the migration — ensuring the investment delivers the scalability, cost, and resilience the business case promised.
Founder CTOs Who Have Outgrown the Role
A technical founder who built the original product is not always the right person to lead a 40-person engineering organization. A fractional CTO can complement the founder's technical instincts with organizational leadership, process governance, and the executive communication skills that scaling requires.
Fractional CTO — Frequently Asked Questions
Questions CEOs, founders, and PE investors ask before engaging a fractional CTO.
What is a fractional CTO, exactly?+
How much does a fractional CTO cost?+
What's the difference between a fractional CTO and an interim CTO?+
What size company benefits most from a fractional CTO?+
What does a fractional CTO do week to week?+
Can a fractional CTO help with a cloud migration or platform modernization?+
Can a fractional CTO help a PE-backed portfolio company?+
How quickly can you put a fractional CTO in place?+
WHY FULL ON CONSULTING
Senior Consultants Only
Every engagement is led and delivered by senior consultants — former CIOs, CTOs, and enterprise IT executives. You get the people you were sold, not a bait-and-switch to junior staff after the contract is signed.
$40M+ in Documented Savings
Our track record includes $40M+ in verified client savings, a $130M M&A integration across 90+ global facilities, and an end-user computing transformation for 18,000 employees. We deliver measurable outcomes — not just recommendations.
20+ Years of Enterprise Experience
Our consultants average 20+ years of enterprise IT experience across Fortune 500 and mid-market companies. We have run the same programs we are being asked to lead — across SAP, Oracle, Salesforce, ServiceNow, and large-scale transformations.
Strategy Through Execution
We do not hand you a strategy deck and walk away. Our teams stay engaged from initial assessment through go-live — accountable for outcomes, not just deliverables. If we recommend it, we are prepared to execute it.
Boutique Agility
As a boutique firm, we move faster, adapt to your priorities, and work with your team rather than around it. No bureaucracy, no layers of overhead — just focused, senior-led execution from day one.
A Partner, Not a Vendor
We build long-term relationships grounded in trust and integrity. Many of our clients have engaged us across multiple initiatives and refer us to peers — because we do what we say we will do, every time.