INDEX / AGENCY
Service Business → SaaS Funnel
Start a service agency in a specific niche to learn customer problems firsthand, then productize the solution into a SaaS or physical product sold to the same customer base.
01 THE IDEA
Greg describes a two-stage business model: launch a service business (agency, consulting, freelancing) targeting a specific customer segment, use client work to deeply understand their recurring problems and inefficiencies, then build a software or physical product that solves those problems at scale. The service business funds the product development and validates the market simultaneously.
This approach de-risks product development dramatically because the founder has paying customers before writing a single line of code for the SaaS. The transition from service to product also improves margins significantly — moving from 20–40% service margins to 70–90% SaaS margins on the same customer base.
02 THE NUMBERS
$60K – $2.5M
$3K + 200h
$1K + 80h
6/10
19 · GROWING →
Domain expertise in target niche, Client management, Product thinking, Basic SaaS development or no-code, Sales
03 THE VERDICT
This is one of the most proven paths to a profitable SaaS company. The service phase provides revenue, customer access, and product validation that pure product-led startups spend years trying to achieve. The risk is getting stuck in the service phase and never making the product transition — founders must be intentional about earmarking time for product development.
Verdict: BUILD. Don't have the ~200 hours it takes? Get matched with a vetted builder who does — we review every brief by hand and intro you to up to 3 builders.
FIND A BUILDER →INTROS ONLY — NO FEES, NO ESCROW. THE PROJECT IS YOURS.
ALREADY BUILT — BY THE COMMUNITY
I BUILT THIS →Nobody has claimed this one yet. Shipped it? Tell the story — every submission is hand-reviewed, and approved builds get listed right here with a link to your product.
04 THE FIELD
- Productize & Scale (Brennan Dunn)est. 2011STEADY · ADDED 2026-06-07
NICHE EDUCATOR FOR THIS EXACT MODEL
Teaches freelancers and agencies how to productize services and transition to scalable revenue models.
- Basecamp / 37signalsest. 1999STEADY · ADDED 2026-06-07
FAMOUS CASE STUDY OF AGENCY-TO-SAAS TRANSITION
Built Basecamp SaaS out of their own web design agency's internal tools — the canonical example of this model.
- Agencies building SaaS (general market)GROWING · ADDED 2026-06-07
FRAGMENTED, MANY SMALL PLAYERS
Thousands of agencies globally are productizing their workflows — competition is category-wide rather than from a single player.