A multi-channel digital marketing transformation that achieved 5.2x return on ad spend and reduced customer acquisition cost by 65% through data-driven automation and personalization.
The Challenge
GrowthEngine was spending $2M annually on marketing with a customer acquisition cost (CAC) of $840 — unsustainable for a product with $199/month average revenue per user. Marketing campaigns were siloed across channels with no coordination, attribution was last-click only, and the marketing team couldn't tell which campaigns actually drove revenue. Email open rates had declined to 12%, paid search was generating clicks but not conversions, and social media was producing vanity metrics with no tie to pipeline.
- Customer acquisition cost of $840 against $199/month ARPU, requiring 4.2 months to break even
- Siloed marketing channels with no cross-channel coordination or consistent messaging
- Last-click attribution making it impossible to understand true campaign ROI
- Email open rates declined to 12% with 0.8% click-through from undifferentiated batch sends
- Paid search campaigns generating $3.20 cost per click but only 1.2% landing page conversion rate
Our Solution
Advenno implemented a full-funnel digital marketing strategy with marketing automation through HubSpot, multi-touch attribution modeling, personalized email sequences based on behavioral triggers, optimized paid media campaigns with AI-driven bidding, and a content marketing engine that drives organic pipeline.
- Marketing automation with behavioral triggers, lead scoring, and personalized nurture sequences
- Multi-touch attribution model revealing true channel contribution to pipeline and revenue
- AI-optimized paid media campaigns with dynamic creative testing and smart bidding strategies
- Conversion rate optimization program with systematic A/B testing across landing pages and forms
- Content marketing engine producing SEO-optimized content mapped to each buying stage
Our Approach
Marketing Audit & Attribution Setup
Audited all active campaigns, set up multi-touch attribution tracking, and established baseline metrics for each channel to measure improvement accurately.
Marketing Automation Implementation
Implemented HubSpot marketing automation with lead scoring, lifecycle stage management, behavioral triggers, and personalized nurture sequences for each buyer persona.
Paid Media Optimization
Restructured paid search and social campaigns with tight audience segmentation, dynamic creative optimization, landing page personalization, and AI-driven bid management.
Content & SEO Strategy
Developed a content marketing strategy mapped to the buyer journey, producing 8 pillar pages, 40 supporting articles, and 6 conversion assets (webinars, tools, templates).
Continuous Optimization Program
Established a weekly optimization cadence with A/B testing framework, campaign performance reviews, and monthly strategy adjustments based on attribution insights.
The Results
Within 9 months, customer acquisition cost dropped from $840 to $294 — a 65% reduction. Return on ad spend improved to 5.2x across all paid channels. Email engagement increased with open rates climbing from 12% to 38% and click-through rates from 0.8% to 7.2%. Organic traffic grew 180% through the content strategy, and the marketing-sourced pipeline increased by 340%. The multi-touch attribution model revealed that content marketing, previously considered a cost center, was actually the highest-ROI channel.
Technologies Used
We used to throw money at marketing and hope for the best. Now every dollar is tracked, every campaign is optimized, and we finally know what's actually driving revenue. Our CAC dropped by 65% and our pipeline tripled.