Documentation Index
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Modern CPA (FirmOS) — 1,567% ROI
Modern CPA invested $5,400 over 3 months and generated $90,000 in cash-collected revenue — a 1,567% ROI. The campaign booked 30 meetings and generated so much pipeline they had to hire another sales rep to handle the volume. A single specific claim — that Modern CPA’s clients add $500K+ in recurring revenue — earned conversations with conservative accounting firm partners who typically delete marketing pitches on sight.The Snapshot
| Detail | Value |
|---|---|
| Industry | Advertising & Marketing / Accounting Firms |
| Company Size | 10-50 employees |
| Services Used | Cold Email + AI Calling + LinkedIn |
| Campaign Duration | 3 months |
The Challenge
Accounting firm managing partners are conservative buyers who move slowly and distrust marketing promises. Outbound in this space is a patience game built on credibility — partners measure success in billable hours and client retention, not impressions. Generic marketing pitches fail because they don’t speak the language of practice growth that partners understand. Standard marketing agency outreach that didn’t anchor to specific, verifiable outcomes in accounting-firm language was getting deleted immediately. Before Outbound System:- Generic marketing pitches failing with conservative partners
- No specific outcome claims in accounting-firm language
- No growth-signal-based targeting for firms in expansion mode
- Pipeline constrained by partner-level sales capacity
- 30 meetings booked in 3 months
- 24% reply rate from managing partners
- $500K+ recurring revenue claim earning conversations
- Had to hire another sales rep to handle pipeline volume
The Solution
Targeted managing partners at firms with 3-10 CPAs — the sweet spot where the practice invests in growth but the partner still makes marketing decisions. Growth signals (recent hiring, new service lines) identified firms in active growth mode rather than maintenance mode.Cold Email
Anchored on a specific, verifiable outcome: Modern CPA’s clients adding $500K+ in recurring revenue. That number was specific enough to be credible and large enough to command a managing partner’s attention. Enterprise infrastructure ensured delivery past Microsoft-heavy accounting firm email filters.LinkedIn Outreach
Targeted managing partners with engagement focused on practice management content and firm growth discussions, building familiarity before the direct ask.AI Cold Calling
Third channel for partners at larger firms harder to reach via email, using brief, peer-level scripts positioning the conversation as a strategy discussion rather than a sales pitch.Beyond the Meetings
- Market Intelligence: Growth signal analysis revealed firms adding new service lines (advisory, wealth management) responded at 2x the rate of firms only hiring for existing lines, identifying the strongest expansion signals.
- Pipeline Insurance: Three-channel coverage meant conservative partners who filter marketing emails still encountered Modern CPA through LinkedIn engagement and peer-level phone conversations.
- ICP Refinement: Firms with 3-10 CPAs consistently outperformed larger firms in response rates, validating the sweet spot where the managing partner controls marketing decisions personally.
Campaign Timeline
Weeks 1-2: Accounting Firm Targeting
Weeks 3-4: Launch & Partner Response
Month 2: Scaling Across Channels
Full Metrics
| Metric | Result |
|---|---|
| Total Spend with Outbound System | $5,400 |
| Campaign Duration | 3 months |
| Qualified Leads Generated | 36 |
| Cost Per Qualified Lead | $150 |
| Meetings / Calls Booked | 30 |
| Cost Per Booked Meeting | $180 |
| Show Up Rate | 83% |
| Revenue Generated (cash collected) | $90,000 |
| New MRR Added | $30,000 |
| ROAS (on cash collected) | 16.67x |
| Total ROI | 1,567% |
“Call volume has gone up significantly. We had to hire another Sales Rep.” — Martin Popiel, CEO at Modern CPA
Ready to See Similar Results?
Modern CPA’s campaign proved that conservative buyers respond to specific, verifiable outcome claims in their own language. See how other agencies and professional services firms have performed, or explore the cold email service and ICP targeting process behind campaigns like this.Book a Strategy Call
Browse All 44 Case Studies
Why did conservative accounting partners respond to outbound?
Why did conservative accounting partners respond to outbound?
What made the 3-10 CPA firm size the sweet spot?
What made the 3-10 CPA firm size the sweet spot?
Why did they need to hire another sales rep?
Why did they need to hire another sales rep?
What growth signals identified firms in expansion mode?
What growth signals identified firms in expansion mode?
How did this campaign perform compared to other agency clients?
How did this campaign perform compared to other agency clients?