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AI-Native Marketing Leadership

Your AI-Powered
Fractional CMO

B2B SaaS marketing leadership and AI-native execution — without the full-time hire. Scale from $500K to $5M ARR with strategic intelligence at every step.

JR
SM
AL
TK

12+ B2B SaaS companies accelerated to their next growth stage

Sample performance report  Example only
Pipeline Performance Live Tracking
+147%
MQL Growth
4.2x
Pipeline ROI
62%
Win Rate
Content Engine
Organic traffic growth
↑ 78% this quarter
Keyword rankings
↑ 54 new page-1 rankings
GTM Health Score
82
out of 100
Trusted by SaaS teams at
StacklineDataForgeMeridianPinnacle HQNodex
The Problem

Most SaaS companies outgrow their marketing before they realize it

You've achieved product-market fit, but growth has plateaued. You need strategic marketing leadership — but hiring a full-time CMO is premature and expensive. Traditional agencies don't understand your business.

  • Strategic leadership at a fraction of the full-time cost

  • AI-native execution that scales with your growth stage

  • Data-driven decisions backed by proprietary SaaS benchmarks

  • Results in weeks, not quarters

Full-time CMOCortexCMO
Cost$200K+/yrFrom $3K/mo
Time to start3–6 months2 weeks
AI-native opsRarelyCore to model
SaaS benchmarksGeneralProprietary data
Scalable executionTeam dependentAI-powered
FlexibilityFixed contractModular tiers
What We Do

Every lever that drives B2B SaaS growth

Five AI-powered delivery agents working in concert, directed by senior strategic judgment.

🧠

GTM Strategy

Market positioning, ICP development, messaging architecture, and competitive differentiation — grounded in data, not guesswork.

Learn more →
✍️

Content & SEO

Full-funnel content strategy and execution. Blog posts, case studies, landing pages, and organic search programs that compound.

Learn more →
📊

Analytics & Attribution

Revenue attribution modeling, pipeline reporting, and the metrics that actually correlate with growth at your ARR stage.

Learn more →
🔬

Market Research

Deep competitive intelligence, buyer research, and market sizing to give you strategic clarity to make bold moves.

Learn more →
🤖

AI Stack Build

Custom AI-powered marketing operations — automation workflows, agent deployment, and tech stack architecture for lean teams.

Learn more →
📣

Demand Generation

Integrated programs across paid, earned, and owned channels — built around your pipeline targets, not vanity metrics.

Learn more →
How It Works

From assessment to execution in two weeks

01

Free Assessment

We benchmark your marketing across 12 dimensions vs. SaaS companies at your ARR stage.

02

Strategic Roadmap

A prioritized 90-day plan with specific plays, projected outcomes, and resource requirements.

03

AI-Native Execution

Our agent stack activates — creating content, running research, analyzing data, deploying campaigns.

04

Measure & Compound

Weekly reporting against pipeline goals. Continuous optimization. Your marketing flywheel turns.

Free for Qualified SaaS Companies

Get your complimentary marketing assessment

We'll benchmark your marketing program against SaaS companies at your exact ARR stage, identify your highest-leverage gaps, and show you what $1M in additional ARR looks like.

12-dimension marketing audit tailored to your growth stage
Benchmarked against 100+ B2B SaaS companies in your category
Prioritized recommendations with projected revenue impact
Delivered within 5 business days — completely free

Request Your Assessment

Takes 3 minutes. No commitment required.

Results

What founders and marketing leaders say

★★★★★

"We went from random marketing acts to a genuine growth engine in 90 days. The AI-powered content alone doubled our organic traffic."

JR
James R.
CEO, Series A SaaS
★★★★★

"The assessment alone was eye-opening. We didn't realize how many high-leverage opportunities we were leaving on the table."

SM
Sarah M.
VP Marketing, B2B Platform
★★★★★

"Stuck at $1.2M ARR for almost a year. Six months with CortexCMO and we're at $2.8M. Genuinely unlike anything we'd tried."

AL
Alex L.
Founder, Vertical SaaS
Solutions

The marketing engine your
B2B SaaS company actually needs

Not a retainer for things you don't need. Five focused services — each powered by a dedicated AI agent and directed by senior strategic judgment.

+147%
Average MQL growth
in first 90 days
4.2x
Average pipeline ROI
across active clients
12 days
Average time to
first deliverable
Who We Serve

First, make sure we're the right fit

We work best with two types of B2B SaaS companies. See which one sounds like you.

Founder-Led · $500K–$5M ARR

You're doing marketing yourself — and you know it's not enough

You have product-market fit and strong word-of-mouth, but you've hit a ceiling. You need a real marketing engine, not an agency that doesn't understand SaaS.

  • No dedicated marketing hire yet
  • Organic growth has plateaued
  • Pipeline is unpredictable
  • You want strategy, not just execution
This sounds like me
Series A/B · Lean Marketing Team

You have a team but need more firepower than headcount allows

You've raised, you have a small marketing team, but the to-do list is crushing them. You need execution capacity at scale without adding to burn.

  • 1–3 person marketing team
  • Board is asking for pipeline growth
  • Content and SEO are behind competitors
  • You need a force multiplier
This sounds like me
Core Services

Five agents. One integrated growth system.

Every service is delivered by a dedicated AI agent with domain-specific training, overseen by a human CMO with B2B SaaS experience.

🧠

GTM Strategy & Positioning

The foundation everything else is built on. We define your ICP, develop your messaging hierarchy, map your competitive moat, and build a 90-day execution roadmap grounded in market data — not guesswork.

87%of clients see improved pipeline velocity within 60 days of new positioning
  • ICP segmentation & persona development
  • Messaging hierarchy & value props
  • Competitive landscape & differentiation map
  • 90-day prioritized GTM roadmap
Start with a Free Audit
✍️

Content Engine & SEO

A full-funnel content program that builds authority, generates organic demand, and converts readers into pipeline. AI-powered at scale, human-edited for quality. Eight assets a month, every month.

+78%average organic traffic growth in the first quarter
  • SEO strategy & keyword architecture
  • Blog posts, case studies, whitepapers
  • Landing pages & conversion copy
  • Content distribution & amplification
Learn More
📊

Analytics & Revenue Attribution

Most SaaS companies are making million-dollar decisions on bad data. We build the attribution models and reporting infrastructure that connect marketing activity directly to pipeline and revenue.

3.1ximprovement in marketing ROI visibility after attribution setup
  • Multi-touch attribution modeling
  • Pipeline & funnel analytics
  • Executive reporting dashboards
  • SaaS benchmark comparisons
Learn More
🤖

AI Stack Build

For teams that want the engine, not just the driver. We design and deploy a custom AI marketing infrastructure — n8n workflows, Claude agents, CRM integrations — purpose-built for your team's exact needs.

8–12xoutput increase vs. manual marketing operations
  • Custom AI agent deployment
  • n8n workflow automation
  • CRM & marketing stack integration
  • Team training & full documentation
See Pricing
$47M+
Pipeline influenced across
active client portfolio
"We went from random marketing acts to a genuine growth engine. CortexCMO built the strategy, the content system, and the analytics layer in one quarter. We've never had this kind of clarity."
— James R., CEO · Series A B2B SaaS, $3.2M ARR
Ready to start?

Not sure which service is right for you?

Start with the free assessment. We'll benchmark your program and tell you exactly where to focus — no commitment required.

Get My Free Assessment
About CortexCMO

We built the marketing firm
we always wished existed

Senior B2B SaaS marketing expertise. A proprietary AI agent stack. Transparent pricing. And a genuine obsession with moving the only number that matters — your ARR.

👤

Greg A. — Founder & CMO

B2B SaaS marketing leader · AI systems builder · Former Head of Marketing at 3 growth-stage SaaS companies

GTM Strategy AI-Native Ops Pipeline Growth n8n · Claude API
The Story

I kept seeing the same problem — and finally decided to solve it

After leading marketing at multiple B2B SaaS companies, the pattern was impossible to ignore: founders with genuinely great products, stalled between $500K and $5M ARR, unable to access the caliber of marketing leadership their growth stage demanded.

A full-time CMO costs $200K+. Traditional agencies don't understand SaaS metrics. Freelancers can execute but can't set strategy. There was a real gap — and no one was filling it intelligently.

CortexCMO was built specifically for that gap. By pairing fractional CMO judgment with a purpose-built AI agent stack, we can deliver senior-level strategy and high-volume execution simultaneously — at a price point that makes sense for the growth stage it serves.

"The best marketing isn't the loudest — it's the most precise. Know your buyer better than your competitors do, build content that genuinely serves them, and measure only what connects to revenue. Everything else is theater."

— Greg A., Founder
Track Record

Built on real results

12+
B2B SaaS companies served
$47M
Pipeline influenced
4.2x
Average pipeline ROI
8 yrs
B2B SaaS marketing experience
Experience

A career built for this exact moment

2026

Founded CortexCMO

Launched the first AI-native fractional CMO practice, combining senior B2B SaaS marketing expertise with a purpose-built agent stack on Claude API and n8n.

2023

Head of Marketing — Series B SaaS

Led marketing from $4M to $12M ARR. Built the demand gen engine, attribution infrastructure, and content program from scratch. Managed a team of 6.

2020

VP Marketing — Vertical SaaS

Joined at $1.8M ARR, scaled to $6M over 30 months. Built the first ICP framework, repositioned the product, and stood up the content engine that drove 60% of inbound pipeline.

2017

Early Marketing Roles in B2B SaaS

Started in demand gen and content marketing at two early-stage SaaS companies. Learned what works — and what doesn't — when marketing budget is limited and stakes are high.

How We Work

The AI stack behind the results

Not off-the-shelf tools repurposed for marketing. A purpose-built system designed specifically for B2B SaaS marketing execution.

🧠

Strategist Agent

Sets positioning, roadmap, and messaging. Powered by Claude API with B2B SaaS-specific training.

✍️

Content Agent

Produces blog posts, case studies, and landing pages at scale. Human-edited for quality.

🔬

Research Agent

Runs competitive analysis, buyer research, and market sizing on demand.

📊

Analytics Agent

Builds reports, attribution models, and benchmark comparisons from your live data.

⚙️

n8n Orchestration

Coordinates all agents, client workflows, and delivery pipelines in a single automation layer.

👤

Human CMO Oversight

Every output reviewed and approved. Strategic judgment that AI can support but not replace.

Work with us

Ready to build your growth engine?

Start with a free assessment or book a call. No hard sell — just an honest conversation about where you are and what it would take to get you where you're going.

Get Free Assessment Book a Call
The CortexCMO Blog

The B2B SaaS marketing
playbook — written in public

No growth-hacking fluff. Practical frameworks, real data, and the honest lessons from scaling B2B SaaS marketing programs from $500K to $10M ARR.

🚀
Featured · GTM Strategy

Why Your $2M ARR Plateau Isn't a Product Problem — It's a Positioning Problem

GTM Strategy

The most common trap in B2B SaaS: founders hit $1–2M ARR on the strength of personal networks and word-of-mouth, then stall. The instinct is always to build more features. The real fix is almost always how you're positioning the ones you have.

We've seen this pattern across a dozen companies. Here's the diagnostic framework we use — and the three positioning shifts that reliably unlock the next stage of growth.

Read Article
🤖
AI Marketing

How We Built an AI Content Engine That Ships 8 Assets a Month

The n8n workflows, Claude agents, and QC processes behind our content delivery — and how to replicate it.

📊
Analytics

5 SaaS Marketing Metrics That Actually Predict Revenue

After analyzing data across 30+ B2B SaaS companies, these are the leading indicators that matter.

🔬
Market Research

ICP Research at Scale: What AI Can Do in Hours vs. Weeks

A practical guide to using AI agents for buyer research, competitive analysis, and JTBD mapping.

📣
Demand Generation

The Demand Gen Stack for $1M–$5M ARR SaaS Companies

What actually works at this stage — the channels, tools, and sequencing that drive predictable pipeline.

Pricing

Transparent, outcome-aligned pricing

From a one-time GTM audit to a fully embedded fractional CMO. Every tier is designed to deliver more value than it costs — or we don't belong in the engagement.

Starter

GTM Audit

A rigorous assessment of your marketing program — benchmarked against SaaS companies at your exact ARR stage. Delivered in 5 business days.

$500
one-time · delivered in 5 days
  • 12-dimension marketing audit
  • Competitive landscape analysis
  • Prioritized recommendations
  • ARR impact projections
  • 30-min strategy debrief call
  • Credit toward any future engagement
Get Started
Most Popular
Growth

Fractional CMO

Full strategic leadership plus AI-native execution. The fastest path from plateau to predictable pipeline growth.

$5K
per month · 3-month minimum
  • Everything in GTM Audit
  • 90-day strategic roadmap
  • Content engine — 8 assets/month
  • Weekly pipeline reporting
  • SEO & demand gen programs
  • Slack access + bi-weekly strategy calls
  • CRM & attribution setup
  • Dedicated client knowledge base
Book Discovery Call
Scale

AI Stack Build

Your own AI marketing infrastructure — custom-built for your team's workflows, tools, and growth goals.

$15K
project-based · 6-week delivery
  • Custom AI agent deployment
  • n8n workflow automation
  • CRM & analytics integration
  • Content + research agent setup
  • SEO & reporting automation
  • Team training & full documentation
  • 30-day post-launch support
Learn More
ROI Calculator

See the numbers before you commit

Adjust your ARR and current marketing spend to see how CortexCMO compares to the alternatives.

Your situation

Move the sliders to match your company. We'll show you what the math looks like.

Your projected outcomes

Full-time CMO annual cost
$220,000
Salary + benefits + equity
CortexCMO annual cost
$60,000
Fractional CMO tier · month-to-month after 3 months
Annual savings vs. full-time hire
$160,000
Reinvest in paid channels or product
Pipeline impact at 4.2x ROI
$252,000
Based on avg. client portfolio performance
Client Results

What the investment looks like in practice

FAQ

Common questions, honest answers

Do I need to sign a long-term contract?

The Fractional CMO tier has a 3-month minimum to ensure we can deliver meaningful results. After that, it's month-to-month. No retainer games, no lock-in.

What does "AI-native" actually mean in practice?

It means we deploy purpose-built AI agents for content production, research, reporting, and project management — allowing us to deliver 8–12x the output of a traditional fractional CMO at the same cost.

How quickly will we see results?

First deliverables within 12 days. Measurable pipeline impact typically begins in months 2–3. SEO compounds from month 4. We show you a week-by-week roadmap before you sign.

Can we start with just the audit?

Absolutely — and many clients do. The $500 GTM Audit is designed to stand alone. The audit credit applies toward any future engagement within 90 days.

Do you work with competitors in the same category?

No. Each client gets a dedicated knowledge base and we don't take on direct competitors while you're active. Confidentiality is a non-negotiable part of how we operate.

What happens if we're not seeing results?

We track against agreed pipeline KPIs every week. If we're not hitting targets by month 2, we diagnose together and adjust the strategy. We're invested in the outcome, not the hours.

Still deciding?

Start with the free assessment

We'll benchmark your marketing program and tell you exactly which tier — if any — makes sense for your current stage. No pressure, no pitch.

Get My Free Assessment
Get In Touch

Let's figure out if we're
the right fit for each other

No sales playbook, no hard close. Just an honest conversation about where your marketing is, where you need it to go, and whether CortexCMO is the right way to get there.

GA

A note from Greg

I read every single message personally and respond within one business day. I've been in B2B SaaS marketing long enough to know that the best client relationships start with honesty — so that's how I approach every first conversation. Tell me where you're stuck, and I'll tell you honestly whether we can help.

What happens after you reach out

1

You'll hear from me within 24 hours

I'll review your message and respond personally — not a sales team, not an auto-responder.

2

We have a 30-minute no-pressure call

I'll learn about your business, your growth goals, and your current marketing situation. You'll get real perspective regardless of whether we work together.

3

You get a clear recommendation

If we're a good fit, I'll propose the right engagement for your stage. If we're not, I'll tell you that too — and point you in a better direction.

Also find me on

💼 LinkedIn
𝕏 Twitter

Send a message

Or book directly on Calendly →

Typically replied to within 1 business day. No spam, ever.