Glossary

Startup marketing
terms explained simply.

The marketing, growth, and GTM terminology every startup founder needs to know — defined clearly, with real startup context, no agency jargon.

The Glossary

A

ACV (Annual Contract Value)

The average annualised revenue from a single customer contract. For SaaS companies, ACV = (Total contract value / years). Used to calculate CAC payback, sales efficiency, and to segment customers by tier.

AEO (Answer Engine Optimisation)

Optimising your content to appear as the recommended source in AI-powered search tools like ChatGPT, Perplexity, and Google AI Overviews. The new frontier of organic visibility for startups.

C

CAC (Customer Acquisition Cost)

The total cost of acquiring one new customer — including all sales and marketing spend. CAC = Total S&M spend / Number of new customers acquired. The most important unit economics metric for startups.

CAC Payback Period

How long it takes to recover the cost of acquiring a customer through their revenue. Payback period = CAC / (MRR × Gross Margin). Benchmark: <12 months for consumer, <18 months for B2B SaaS.

CMO as a Service

Fractional Chief Marketing Officer engagement — full CMO-level strategy, team management, and execution ownership without the cost of a full-time hire. Typically structured as a retainer with defined scope and reporting.

Churn Rate

The percentage of customers who cancel or don't renew in a given period. Monthly churn = (Customers lost / Total customers at start of month) × 100. The silent killer of SaaS growth.

CRO (Conversion Rate Optimisation)

The systematic process of increasing the percentage of users who complete a desired action on your website or product. Includes A/B testing, landing page redesign, and funnel analysis.

G

GEO (Generative Engine Optimisation)

Building the authority signals that large language models use when generating recommendations — structured data, E-E-A-T, citation strategy. Makes your brand appear in AI-generated responses.

GTM (Go-To-Market)

The strategy and plan for launching a product or entering a new market. Includes ICP definition, positioning, channel selection, pricing, and launch sequencing. The most important strategic document a startup can have.

I

ICP (Ideal Customer Profile)

A detailed description of the exact type of company or person your product is built for — the one who gets the most value, churns the least, and is easiest to acquire. Everything in marketing flows from a well-defined ICP.

L

LTV (Lifetime Value)

The total revenue you expect to generate from a single customer over their full relationship with your business. LTV = ARPU / Churn Rate. The counterpart to CAC in startup unit economics.

M

MQL (Marketing Qualified Lead)

A lead who has engaged with your marketing content in a way that suggests buying intent — visiting a pricing page, downloading a white paper, requesting a demo. Handed from marketing to sales for follow-up.

MRR (Monthly Recurring Revenue)

The predictable, recurring revenue generated in a given month. MRR = Number of active customers × Average monthly revenue per customer. The primary health metric for SaaS businesses.

N

NRR (Net Revenue Retention)

The percentage of revenue retained from existing customers after churn, downgrades, and expansion. NRR above 100% means you grow even with no new customers — the holy grail of SaaS.

P

PLG (Product-Led Growth)

A growth strategy where the product itself is the primary driver of acquisition, retention, and expansion. Users discover value before buying, often through freemium or self-serve models. Slack, Notion, Figma.

S

SQL (Sales Qualified Lead)

A lead that has been reviewed by sales and confirmed as a genuine potential customer worth pursuing. SQLs meet the ICP criteria and have shown clear buying intent.

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