Scaling Investor Sign-Ups for an Online Business Marketplace While Cutting CPA by 48%

Scaling Investor Sign-Ups for an Online Business Marketplace While Cutting CPA by 48%

Translation Agency, London, UK (B2B)

Client

Timeline

3-12 months

Investment

$40K - $80K

Scaling Investor Sign-Ups for an Online Business Marketplace While Cutting CPA by 48%

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Key Results

245%

User Sign-ups
Increase in monthly registrations

3.6×

Return on Investment
On advertising spend

2x

Conversion Rate
Free to paid conversion

-42%

Customer Acquisition Cost
Reduction over 6 months

The Challenge

The client had recently launched a new buy-and-sell business marketplace and needed to drive users to a fresh platform with no historical traction.

Key challenges included:

  • Driving trust and adoption for a new marketplace
  • Acquiring both buyers and sellers at scale
  • High acquisition costs limiting growth
  • Inefficient spend across top-of-funnel traffic

The priority was clear: generate more qualified investor sign-ups while reducing cost per acquisition.

The Goal

The core objective was to increase sign-ups from investors on both the buy and sell side, while improving efficiency and reducing wasted ad spend.

Success would be measured by:

  • Increased conversion rate
  • Higher total sign-ups
  • Lower CPA
  • Reduced overall ad spend

Our Strategy

We rebuilt the account with a marketplace-first acquisition strategy, focusing on intent, clarity, and conversion efficiency.

Key initiatives included:

  • Restructuring campaigns around buyer vs seller intent
  • Tightening audience targeting to remove low-intent traffic
  • Improving funnel alignment between ads and sign-up flows
  • Reallocating budget toward high-performing conversion segments

Rather than increasing spend, the focus was on making acquisition profitable and scalable.

Results (Quarter-over-Quarter)

Before Optimization

  • Ad Spend: £16,739.09
  • Clicks: 16,188
  • Sign-Ups: 1,094
  • Conversion Rate: 6.76%
  • Cost per Acquisition: £15.30

After Optimization

  • Ad Spend: £11,328.49
  • Clicks: 10,783
  • Sign-Ups: 1,425
  • Conversion Rate: 13.22%
  • Cost per Acquisition: £7.95

Performance Highlights

  • 📈 Sign-ups increased by 31%
  • 🚀 Conversion rate improved by 96%
  • 💰 CPA reduced by 48%
  • 📉 Ad spend reduced by 32%
  • 🎯 Higher-quality buyers and sellers entering the marketplace

Key Takeaway

By aligning campaigns with true marketplace intent and restructuring acquisition around performance, we helped the client grow faster while spending less.

This case study demonstrates how the right strategy can:

  • Scale two-sided marketplaces
  • Improve conversion efficiency
  • Reduce costs without sacrificing growth

"Traffic Summits transformed our approach to growth. We went from hoping for users to systematically acquiring them. The frameworks they built are still driving our growth today."
Sarah Chen, Founder & CEO at NizeNote

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  • Improving conversion efficiency at higher volumes

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Traffic Summits focused on controlled, performance-led scaling.

Key actions included:

  • Scaling budgets only on proven, high-performing campaigns
  • Optimizing toward purchase-focused conversion signals
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  • Reallocating spend toward campaigns delivering the strongest ROAS

This allowed spend to increase without sacrificing efficiency.

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Laura P.

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Their main challenges were:

  • Maintaining performance while increasing spend
  • Preventing ROAS decline during scale
  • Improving conversion efficiency at higher volumes

Our Strategy

Traffic Summits focused on controlled, performance-led scaling.

Key actions included:

  • Scaling budgets only on proven, high-performing campaigns
  • Optimizing toward purchase-focused conversion signals
  • Improving traffic quality through tighter audience and keyword controls
  • Reallocating spend toward campaigns delivering the strongest ROAS

This allowed spend to increase without sacrificing efficiency.

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Laura P.

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Their main challenges were:

  • Insufficient Sales Qualified Leads (SQLs) from enterprise accounts 
  • High cost per lead limiting scale 
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We focused on enterprise intent and lead quality, not volume for volume’s sake.

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  • Optimizing campaigns around SQL-focused conversion events 
  • Improving funnel alignment between ads and qualification steps 
  • Reallocating budget toward higher-intent segments 

This ensured spend was concentrated on prospects most likely to convert into pipeline revenue.

245%

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