TL;DR: These 15 Google Ads case studies from Creekside Marketing span dental, legal, e-commerce, B2B manufacturing, healthcare, and home services. Highlights include a dental practice growing from 26 to 413 annual conversions at 500%+ ROI, a GLP-1 brand generating $456K in revenue on $46.8K in spend in 30 days, and a luggage storage service driving 1,050 purchases at $2.44 each. Every number comes directly from campaign dashboards.

Results at a Glance

Case Study	Headline Result
Polaris Dentistry	26 to 413 conversions, 500%+ ROI
GLP-1 Weight Loss Brand	$456K revenue on $46.8K spend (9.74x ROAS)
Luggage Storage Service	1,050 purchases at $2.44 CPA
Laptop Display Brand	8-10x non-branded ROAS across 49 countries
Natural Beauty Brand	3,211 new customers at 6.1x ROAS
Custom Foam Manufacturer	684 B2B leads at $52.18 each
Industrial Supplier	412 qualified leads at 4.9x ROAS
Bankruptcy Law Firm	2x conversions, 42% lower CPA
Source	Creekside Marketing case studies

15 Google Ads Case Studies With Real Numbers: $2.44 CPAs, 9.74x ROAS, and 500%+ ROI

Most Google Ads case studies you find online are vague. “We increased traffic significantly” tells you nothing about what a well-managed account actually produces.

This roundup is different. Every case study below includes real numbers pulled directly from campaign dashboards: conversion counts, cost per acquisition, ROAS, and spend levels. They cover 15 different businesses across dental, legal, e-commerce, B2B, healthcare, and home services, so you can benchmark against a vertical that looks like yours.

Each entry links to the full case study with the complete breakdown.

1. Dental Practice: From 26 to 413 Conversions at 500%+ ROI

A small dental practice had been running Google Ads for years with almost nothing to show for it: 26 conversions per year at $48.79 each. Creekside rebuilt the account around high-purchase-intent, locally targeted keywords and conversion-focused bidding. Conversions grew to 413 in a single year, and cost per conversion eventually dropped below $4.

Read the full breakdown: Polaris Dentistry Google Ads Case Study

2. GLP-1 Weight Loss Brand: $456K Revenue on $46.8K Spend in 30 Days

This account was broken when it arrived: duplicate conversion tracking and five other structural issues were distorting every optimization decision. After the audit and fixes, the account delivered $456K in attributed revenue on $46.8K in ad spend within the first 30 days, a 9.74x ROAS.

Read the full breakdown: GLP-1 Weight Loss Google Ads Case Study

3. Luggage Storage Service: 1,050 Purchases at $2.44 CPA

A luggage storage service with 30+ US locations needed proof that paid search could acquire customers profitably. A dual-targeting strategy proved the model in Nashville first, then scaled nationally, driving 1,050 purchases at just $2.44 per acquisition.

Read the full breakdown: Luggage Storage Google Ads Case Study

4. E-Commerce Laptop Display Brand: 8-10x Non-Branded ROAS in 49 Countries

A portable laptop display brand doing $1M+/month on Shopify wanted growth beyond branded search. A multi-channel Google Ads strategy achieved 8-10x ROAS on non-branded cold traffic and supported expansion into 49 countries.

Read the full breakdown: Aura Displays Google Ads Case Study

5. Natural Beauty Brand: 3,211 New Customers at $28.74 Per Order

Chagrin Valley had strong organic traffic but no reliable paid acquisition engine. Creekside built one focused specifically on new beauty buyers, producing 3,211 new customers at $28.74 per order and a 6.1x ROAS without wrecking margins.

Read the full breakdown: Chagrin Valley Google Ads Case Study

6. Custom Foam Manufacturer: 684 B2B Leads at $52.18 Each

American Foam Products depended on trade shows and referrals for new business. A high-intent search program replaced that dependency, delivering 684 qualified B2B leads at $52.18 each and a 5.1x estimated ROAS.

Read the full breakdown: American Foam Products Google Ads Case Study

7. Industrial Services Supplier: 412 Qualified Leads at 4.9x ROAS

GPP Industrial turned Google Ads into a reliable inbound pipeline that delivers qualified buyers every single month: 412 leads and a 4.9x estimated ROAS on $39.8K in spend.

Read the full breakdown: GPP Industrial Google Ads Case Study

8. Bankruptcy Law Firm: Conversions Doubled, CPA Down 42%

A bankruptcy law firm’s account was underperforming on both volume and efficiency. A restructure doubled conversions from 117 to 229 while cutting cost per conversion 42% to $50.29.

Read the full breakdown: Bankruptcy Law Firm Google Ads Case Study

9. NYC Mobile Notary: 440 Conversions at $27.92 CPA

A New York City mobile notary and apostille service grew through systematic campaign expansion, generating 440 conversions while reducing CPA by $16 to $27.92.

Read the full breakdown: NYC Notary Google Ads Case Study

10. Naturopathic Practice: 150+ Patient Inquiries at $14-$40 CPA

A Sacramento naturopathic practice needed consistent patient inquiries without a massive budget. Core service keywords delivered 150+ conversions at CPAs as low as $14.

Read the full breakdown: Naturopathic Practice Google Ads Case Study

11. Hair Transplant Clinic: 690 Patient Inquiries With YouTube + Search

A Seattle hair transplant clinic used a multi-format YouTube and Search strategy to reach patients from awareness to booking. Conversions grew 42% over the prior period, 690 inquiries total, while cost per inquiry dropped $44 across $92.5K in spend.

Read the full breakdown: Hair Transplant Google Ads Case Study

12. Pest Control Company: Leads Up 34%, CPA Down 19%

Green Shield Pest applied a proven pest control campaign framework and grew lead volume 34% while cutting CPA 19%, generating 79 qualified leads with a five-year customer value that makes the math undeniable.

Read the full breakdown: Pest Control Google Ads Case Study

13. Asphalt Contractor: 32 Leads in 12 Days, CPL Cut 31%

A Virginia asphalt contractor needed a lead engine, fast. The campaign drove 32 leads in the first 12 days and cut cost per lead from $185 to $127, then expanded into sealcoating and striping.

Read the full breakdown: Asphalt Contractor Google Ads Case Study

14. Custom Home Builder: Qualified Leads Up 300%

A middle Tennessee custom home and barndominium builder grew qualified leads 300% while cutting cost per lead from $454 to $239, building a pipeline of multi-million dollar project inquiries.

Read the full breakdown: Home Builder Google Ads Case Study

15. Semi-Truck Axle Repair Shop: #1 Impression Share in a Niche Market

A local semi-truck axle spindle repair shop outpaced national chains through hyper-precise bidding and local optimization, capturing the #1 impression share in its niche and expanding its service radius.

Read the full breakdown: Axle Solutions Google Ads Case Study

What These 15 Google Ads Case Studies Have in Common

Across all 15 accounts, the same three variables separated strong performance from wasted spend:

• Conversion tracking that measures the real business outcome. The GLP-1 account’s turnaround started with fixing duplicate tracking. Several accounts were optimizing toward events that did not matter.
• High-intent keyword structure. Every dental, legal, and home services win came from concentrating budget on procedure-specific, locally targeted, commercial-intent searches instead of broad terms.
• Ongoing optimization, not set-and-forget. The accounts that hit $2-$4 CPAs got there over months of iteration, not at launch.

If you want to see how your account compares to these benchmarks, see how we manage Google Ads or browse all Creekside case studies.