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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 $5M ARR.

Featured · Product Launch

What Is Gemini Notebook? Google's NotebookLM, Explained

Product Launch

Gemini Notebook is Google's renamed NotebookLM, now with a secure cloud computer that runs code against your sources. What changed, pricing, and who it's for.

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Latest Posts

Fresh from the blog

Product Launch

What Is Ode with Anthropic? The $1.5B AI Firm

Ode with Anthropic is the $1.5B AI implementation firm from Anthropic, Blackstone & Hellman & Friedman. What it does, how it works, what it means for SaaS.

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Product Launch

What Is Canva Code 2.0? AI Website Building Explained

Canva Code 2.0 lets any user—including free accounts—build and visually edit websites and apps from AI prompts. What it does, pricing, and the GTM angle.

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Analytics & Attribution

Marketing Attribution Models for B2B SaaS: Which One to Use (and When to Stop Caring)

Multi-touch attribution sounds rigorous and is mostly theater at $1M–$10M ARR. Here's a plain-English guide to the five main attribution models, when each is actually useful, and how to set up attribution that survives a board meeting without lying to anyone.

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Analytics & Attribution

LTV:CAC Ratio for SaaS: Why 3:1 Is the Wrong Benchmark for Most Founders

The LTV:CAC ratio gets quoted in every B2B SaaS board deck and misused in most of them. Here's what LTV:CAC actually measures, why the 3:1 benchmark is lazier than it sounds, and the four assumptions inside the ratio that quietly make founders lie to themselves.

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Analytics & Attribution

CAC Payback Period for SaaS: The Metric That Decides How Fast You Can Scale

CAC payback period is the single most important capital efficiency metric for B2B SaaS between $1M and $10M ARR. Here's how to calculate it honestly, what benchmarks actually apply at your stage, and the five levers that move it.

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GTM Strategy

The State of B2B SaaS Marketing in 2025: What's Working, What Isn't, and What's Changed

B2B SaaS marketing in 2025 is defined by AI-driven execution, polarized content quality, and buyers who trust peers far more than vendors. This report distills what’s actually working for $500K–$5M ARR SaaS companies across content, outbound, PLG vs. sales-led motions, paid, email, and AI tooling—and lays out a focused playbook for building durable pipeline in the current environment.

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GTM Strategy

HubSpot vs. Salesforce for Early-Stage SaaS: Which CRM Is Right for You?

For most B2B SaaS companies under $5M ARR, HubSpot is the right CRM — and Salesforce becomes the right choice once you’ve outgrown HubSpot. This post breaks down the tradeoffs, real switching costs, and a simple framework to choose the right CRM for your current stage.

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GTM Strategy

What Does a Fractional CMO Do for a SaaS Company?

A fractional CMO gives SaaS companies senior-level marketing leadership without the cost of a full-time CMO. Learn what they actually do, key deliverables in the first 90 days, how the model fits SaaS, and what you should expect to pay.

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GTM Strategy

How to Hire Your First Marketing Person at a SaaS Startup

A practical framework for B2B SaaS founders on when to hire their first marketing person, which profile to choose, what to pay, how to interview, and how to set them up for success—plus when a fractional CMO is the better first move.

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GTM Strategy

What Is Product-Led Growth — And Does It Work for B2B SaaS?

Product-led growth (PLG) uses your product—not your sales team—as the primary engine for acquisition, conversion, and expansion. This post breaks down how PLG works, the three core PLG models, when it’s a fit for B2B SaaS, the metrics that matter, and how to combine PLG with sales for a hybrid motion that actually scales.

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Demand Generation

How to Generate Leads for B2B SaaS Without a Big Budget

The most effective lead generation strategies for early-stage B2B SaaS don’t require large budgets — they require precision. This post breaks down six high-ROI tactics founders can execute with minimal spend, plus how to deploy a $1,000/month budget for maximum pipeline impact.

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Content & SEO

SaaS Content Marketing Strategy: What Actually Works in 2026

Content marketing for SaaS has changed more in the last two years than in the previous decade. AI content, Google's Helpful Content updates, and AI answer engines have raised the bar. Here's the 2026 playbook: original data, proprietary frameworks, deep intent-driven guides, and sharp POV content—distributed aggressively and measured against real pipeline impact.

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Analytics & Attribution

How to Measure Marketing ROI for B2B SaaS (Without Lying to Yourself)

Marketing ROI for SaaS isn’t a single number—it’s a system of connected metrics across CAC, payback, LTV, and pipeline attribution. Learn how to build a practical measurement framework for B2B SaaS, which metrics actually matter, and how to move from gut-feel to data-driven marketing decisions.

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SaaS Benchmarks

Why $1M ARR Is a Critical Marketing Inflection Point

At $1M ARR, most B2B SaaS companies are running marketing on instinct rather than benchmarks. Founders don't know if their CAC is high, their conversion rates are low, or their marketing spend is appropriate for their stage. This post provides concrete benchmarks — drawn from aggregated industry data and operating experience across B2B SaaS companies at the $500K–$3M ARR range.

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Demand Generation

Buyers are 70% decided before they hit your site

Every satisfying marketing dashboard you built this quarter might be measuring the wrong door.

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GTM Strategy

When to Hire a Fractional CMO vs. a Full-Time CMO

Use revenue stage, marketing maturity, and execution needs to decide between a fractional CMO and a full-time CMO. For most B2B SaaS companies under $5M–$10M ARR, a fractional CMO is the better fit—especially when strategy isn’t nailed, budget is tight, or you’re preparing for a fundraise.

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GTM Strategy

How to Build a Marketing Stack for Early-Stage SaaS

A practical, opinionated guide to building a lean, right-sized marketing stack for B2B SaaS companies at $500K–$5M ARR — including which tools to buy, which to skip, and in what order to implement them.

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GTM Strategy

A Practical GTM Strategy Framework for B2B SaaS Under $5M ARR

A practical, 5-step framework to build a real GTM strategy for B2B SaaS companies between $500K–$5M ARR: define a precise ICP, nail positioning, focus on 1–2 channels, align your sales motion, and implement a measurement system that actually guides decisions.

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