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Every business we talk to has the same hidden asset: a contact database full of people who already know, trust, and have paid them — sitting completely untouched. Past customers. Leads that never converted. People who inquired six months ago and never heard back. They're all still there.
“That's not a contact list. That's hidden revenue sitting in plain sight.”
— ABMG Email Strategy
When we audit a business's contact database, we consistently find three categories of untapped revenue:
Past customers who haven't heard from you in months or years. They already trust you. They already paid you once. Reactivating them costs a fraction of acquiring new customers — and they convert at dramatically higher rates because the hardest part (building trust) is already done.
People who inquired but never bought. Maybe the timing wasn't right. Maybe they needed more information. Maybe they just got busy. The average B2B purchase decision takes 3-6 months — if you're only following up once, you're abandoning the majority of your pipeline.
Customers who bought once and never came back — not because they had a bad experience, but because nobody asked. No follow-up sequence. No seasonal campaign. No 'it's been 6 months since your last service' reminder. The revenue was always there. It was just leaking out the back door.
One of our HVAC clients had 2,800 past service customers sitting in a database nobody touched. They were spending thousands per month on new customer acquisition while ignoring the goldmine in their own system.
We deployed our email/SMS direct response methodology: cleaned and segmented the list, built urgency-driven seasonal campaigns (pre-summer AC tune-ups, winter heating checks), and created automated follow-up sequences. Every appointment was tracked from email open to booked appointment to closed revenue.
The result: $186K in directly attributed revenue from a $3K/month investment. Full attribution, tracked to the dollar.
Email/SMS isn't a magic wand, but the timeline is faster than most channels:
Paid ads are linear — stop paying, leads stop. Email is exponential — every contact can be activated repeatedly at near-zero marginal cost.
It's not lack of awareness. Most business owners know they should be emailing their list. The barriers are always the same: 'We don't have time to write emails.' 'We don't want to annoy people.' 'We don't know what to say.'
Here's the reality: the key is relevance, not frequency. Only 1 in 10 emails should be a direct pitch — the other 9 earn permission for that pitch. Well-segmented, well-timed emails see unsubscribe rates under 0.5%. Your contacts want to hear from you. They just want it to be worth their time.
Pull your contact list. How many past customers are in there? How many leads that never converted? How many people who haven't heard from you in 6+ months? That number — that's your hidden revenue. The question is whether you're going to keep leaving it on the table.
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