Agency owners look for products inside the work they deliver, because that is where the expertise is. Our own corpus says the documented problems are somewhere else: of the 25 strongest records we hold for this vertical, 52 percent are about getting PAID rather than about the work.
Before any idea there is one test, and it is the one that explains why productise your service usually fails for agencies specifically: does the fix work the same way for every client, or does each client need work only you can do.
The thing you are best at is the thing clients hire you for BECAUSE it is bespoke. Turning it into software means removing the judgement that made it worth paying for, and what is left is a template anyone can copy.
So the problems that pass that test are the boring ones. Identical at every client, nobody is proud of solving them, and they happen every single month. Read our money-themed rows back as a job description and they are an unpaid bookkeeper: quote approved and invoice not sent, hours tracked late so revenue leaks, payment failed and nobody noticed, which client is actually profitable — unknown.
Note what is NOT in that list. Nothing about creative review, nothing about scope disputes, nothing about the work itself. Those are the loudest complaints in any agency. I do not think that means they are rare — I think it means they are hard to write down publicly in a way a search can find.
Then the arithmetic, which is harsher in this vertical because an agency-facing tool touches other people's money and support is not a five-minute ticket. At 30 minutes per customer per month and a 3000 target: 29 a month means 104 customers and 12 hours a week of support before you build anything.
The good news is that agencies are a rare buyer who will pay properly. At 399 the entire business is 8 customers and under 0.9 hours a week of support. 8 customers is a completely different business from 104 — you can name all eight, and you can also lose a quarter of your revenue when two leave. That is the trade the top of the ladder is really offering.
Three limits I would rather state than have found. Nothing here is a frequency claim: every record was found by exactly one sweep, so documented is the strongest word available and most common is not available at all. 25 records are not 25 independent findings — they come from 19 pages, and reading one page often yields two or three statements. And the topic match is a substring, so reading all of them by hand left 22 genuinely on topic; I am publishing the smaller number because the larger one is the one that would look better.
The rows, with source links: https://whittleos.com/guides/business-ideas-for-agencies
Really solid approach — I'm juggling something similar myself (building Xstream4K on the side), what's been the hardest part for you so far?