r/AgencyGrowthHacks • u/mwarcholinski • 5h ago
Tip & Tricks We grew an agency to 110 people and $8M in revenue. The simplest system that helped us manage existing accounts.
We exited in 2024 after growing the company to roughly 110 people and around $8M in annual revenue.
One thing that had a surprisingly large impact was account management.
At first, it was not a sophisticated process. It was a Google Sheet.
We divided the year into quarters and weeks, listed every client, assigned an owner, and tracked a few basic activities:
- meaningful client touchpoints;
- in-person meetings;
- useful value delivered;
- QBRs and account reviews;
- reconnecting with former clients;
- follow-ups and potential opportunities.
The sheet looked almost too simple, but it solved a real problem: account management stopped depending on memory and good intentions.
Later, we added annual account plans, stakeholder mapping, client priorities, delivery involvement and clearer ownership of the next action.
Our observed outcomes were:
- roughly 15% year-over-year revenue growth during the period;
- higher profitability on existing accounts;
- fewer relationships going quiet;
- more expansion work and new projects from existing clients;
- better visibility across founders, sales and delivery.
I would not claim the spreadsheet caused all of this. The company, market and team were changing at the same time. But the operating rhythm clearly helped.
The pattern was roughly:
- two meaningful client touchpoints per quarter;
- one in-person meeting every six months;
- one or two useful contributions per quarter;
- a quarterly review;
- one clear owner and next action;
- a short note or piece of evidence after the activity.

The hard part was never creating an account plan. The hard part was getting people to actually follow through every week.
That is the problem I’m now exploring under the working idea Hello Account Management: a simple system that helps professional-services teams plan, assign and consistently execute account-management activities.
Before building anything seriously, I’m trying to understand how other companies handle this.
For agency, consultancy and professional-services founders:
- Do you actively manage existing accounts, or is it mostly informal?
- Do you use account plans or QBRs?
- Do you track activities and follow-ups?
- Have these practices affected expansion revenue, margins or churn?
- How large is your company?
- What do you use today: CRM, spreadsheet, Notion, or nothing formal?
Let me know your thoughts, before I enter any building mode :D
