Case Study
PPC Case Study

How We Reduced Cost Per Lead by 45% for a B2B SaaS Company

A B2B SaaS company offering project management software for creative agencies approached The Buy Reviews with a clear goal: generate more qualified leads without increasing their advertising budget. The client had been running Google Ads and LinkedIn Ads in-house for six months but saw inconsistent results. Their cost per lead was high, lead quality was low, and they were struggling to prove ROI to leadership.

-45%
Cost Per Lead
+133%
Lead-to-Opportunity
+157%
Return on Ad Spend

Client Background

The client's target audience included agency owners, operations directors, and project managers at small to mid-sized creative agencies in North America and Europe. Their average customer lifetime value was $12,000, so they could afford a healthy cost per lead, but their current campaigns were not delivering.

The Challenge

The client faced several paid search and paid social obstacles:

  • High cost per lead (average $85 per lead)
  • Low lead-to-opportunity conversion rate (only 12% of leads met sales qualification)
  • Poor ad relevance scores on Google Ads
  • Limited audience targeting on LinkedIn Ads
  • No structured A/B testing for ad copy or landing pages
  • Wasted spend on irrelevant keywords and broad match types
  • No retargeting campaigns to capture abandoned traffic
  • Difficulty tracking offline conversions from demo requests to closed deals

The client needed a comprehensive PPC management strategy that would lower costs, improve lead quality, and demonstrate clear ROI.

The Solution

We implemented a multi-phase paid search and paid social campaign focused on Google Ads and LinkedIn Ads, with a strategic emphasis on audience targeting and conversion optimization.

Phase 1: Account Audit & Restructuring

We conducted a full audit of the client's existing Google Ads and LinkedIn Ads accounts. Key findings included:

  • 40% of budget was wasted on irrelevant broad match keywords
  • Ad copy did not address specific pain points of creative agencies
  • Landing pages were generic and not aligned with ad messaging
  • Conversion tracking was incomplete, missing key micro-conversions
  • LinkedIn audience targeting was too broad, reaching non-decision-makers

We restructured both accounts, pausing underperforming campaigns and reallocating budget to high-potential areas.

Phase 2: Keyword Research & Negative Keyword Implementation

For Google Ads, we conducted extensive keyword research to identify high-intent, commercial keywords. We also built a robust negative keyword list to filter out irrelevant searches. Examples included:

  • Negative keywords: "free," "template," "open source," "for personal use," "cheap"
  • Target keywords: "project management software for agencies," "creative agency workflow tool," "agency operations platform"

We moved from broad match to phrase match and exact match, significantly reducing wasted spend.

Phase 3: Ad Copy & Landing Page Optimization

We created multiple ad copy variations for each ad group, testing different:

  • Headlines (value proposition vs. problem-agitation vs. question)
  • Descriptions (feature-focused vs. benefit-focused)
  • Calls to action ("Get a Demo," "Start Free Trial," "See Pricing")

We also redesigned the client's landing pages to align with ad messaging. Each landing page included:

  • A clear, compelling headline matching the ad copy
  • Social proof (customer logos and testimonials)
  • A short form (name, email, company size, pain point)
  • Trust badges and security assurances

Phase 4: LinkedIn Ads Audience Refinement

For LinkedIn Ads, we narrowed audience targeting to specific job titles, functions, and company sizes. We also created:

  • Retargeting campaigns for website visitors who did not convert
  • Lookalike audiences based on existing customer data
  • Account-based marketing (ABM) campaigns targeting specific agencies from the client's ideal prospect list

We tested Single Image Ads, Video Ads, and Message Ads, optimizing toward the best-performing formats.

Phase 5: Bid Management & Budget Optimization

We implemented automated bid strategies (Target CPA for Google Ads, Max Conversions for LinkedIn) and adjusted budgets based on performance. We also scheduled ads to run only during business hours when conversion rates were highest.

Phase 6: Conversion Tracking & Offline Conversion Import

We set up comprehensive conversion tracking, including:

  • Form submissions (primary conversion)
  • Click-to-call and call tracking
  • Chatbot interactions (micro-conversion)
  • Time on site and page views per session

Most importantly, we integrated the client's CRM to track offline conversions. We imported closed-won deals back into Google Ads and LinkedIn Ads, enabling the platforms to optimize for leads that actually became customers, not just form fills.

Phase 7: A/B Testing & Continuous Optimization

We ran ongoing A/B tests on:

  • Ad copy (headlines, descriptions, CTAs)
  • Landing page elements (headlines, forms, images)
  • Audience segments (job titles, industries, company sizes)
  • Ad formats (text, image, video, message)

Every test had a clear hypothesis and statistical significance threshold.

The Results

The campaign delivered exceptional improvements across all key metrics within 90 days.

Metric Before After (90 days) Improvement
Cost Per Lead $85 $47 -45%
Click-Through Rate (CTR) 2.1% 4.8% +129%
Conversion Rate (Lead Form) 3.2% 6.9% +116%
Lead-to-Opportunity Rate 12% 28% +133%
Cost Per Opportunity $708 $168 -76%
Return on Ad Spend (ROAS) 2.1x 5.4x +157%
Wasted Spend (Irrelevant Clicks) 40% 8% -80%
LinkedIn Ad Engagement Rate 0.4% 1.2% +200%

The client's cost per qualified opportunity dropped from $708 to $168, a 76% reduction. Their return on ad spend more than doubled, from 2.1x to 5.4x. With the same monthly budget, they generated 3x more sales-qualified opportunities.

Key Takeaways

This paid search case study demonstrates several important lessons for B2B advertisers:

  • Keyword match types matter. Switching from broad match to phrase and exact match eliminated 80% of wasted spend.
  • Landing page alignment is critical. Matching ad copy to landing page headlines improved conversion rates by 116%.
  • Offline conversion tracking transforms optimization. Importing closed-won deal data allowed the platforms to optimize for revenue, not just leads.
  • LinkedIn Ads require precise targeting. Narrowing audiences to specific job titles and functions dramatically improved engagement and lead quality.
  • A/B testing never stops. Continuous testing of ad copy, audiences, and landing pages drove incremental gains over time.
  • Retargeting captures lost opportunities. A simple retargeting campaign for website visitors who did not convert added 15% more leads at a lower CPA.

Why This PPC Case Study Matters for B2B Companies

This PPC case study shows that even with a limited budget, a well-executed paid search and paid social strategy can dramatically improve ROI. For B2B companies with long sales cycles and high customer lifetime values, optimizing for qualified opportunities rather than raw leads is essential.

Bonus: B2B Influencer Marketing Case Study (Paid Social Extension)

As part of this engagement, we also tested a paid social influencer marketing campaign on LinkedIn. We partnered with three mid-tier influencers in the project management and agency operations space. Each influencer created a short video reviewing the client's software and sharing a unique demo link.

The influencer posts were promoted as Spark Ads (LinkedIn's version of boosting organic content). Results included:

  • 210,000 impressions
  • 4,500 clicks to the demo page
  • 380 demo requests
  • Cost per demo request: $18
  • Lead-to-opportunity rate from influencer traffic: 34% (higher than cold traffic)

This B2B influencer marketing case study demonstrates that paid social amplification of authentic creator content can be highly effective, even in niche B2B markets.