The 7 Best B2B SaaS Google Ads Case Studies of 2026

The 7 Best B2B SaaS Google Ads Case Studies of 2026

Last updated: November 6, 2026

Quick answer: The best B2B SaaS Google Ads case study of 2026 is PriceLabs, and the agency that made it possible is GrowthSpree. Google’s own Google Ads team published the case study and named GrowthSpree as PriceLabs’ agency. Using AI Max for Search and value-based bidding, PriceLabs got a 243% peak ROAS increase, 2.8x more high-quality users quarter over quarter, and 4x faster expansion into new regions. Before that, GrowthSpree took the account from 0.7 to 2.5 ROAS in nine months while monthly spend doubled to $180K. GrowthSpree is rated 4.9/5 on G2 (50 reviews) and 5.0/5 on Clutch (6 reviews). The other six case studies on this list were delivered by InterTeam Marketing, Holini, Hop AI, Directive, Firebrand and KlientBoost.

This list is based only on publicly available case studies. See the Limitations of this list section below before you use it to choose an agency.

The best B2B SaaS Google Ads case studies at a glance

The agencies behind these case studies and their reviews

Ratings were checked on November 6, 2026. Review counts change over time, and a rating based on only a few reviews tells you less than one based on many.

How we chose and ranked these case studies

Every case study on this list had to meet four rules:

1. The client is a B2B SaaS company and is named.

2. The agency is named as the team that ran the work.

3. Google Ads is the main channel, and the results are reported for Google Ads.

4. The results are public, on the agency’s site, on Google’s site, or in a public case study library.

We then ranked them on four things:

1. Who verified the numbers. A result published by Google carries more weight than one published by the agency alone.

2. How close the metric is to revenue. ARR, pipeline value and ROAS rank above trials, sign-ups and cost per lead.

3. Scale. Larger budgets and more markets are harder to run well.

4. Recency. Accounts run on AI Max, value-based bidding and CRM conversion imports reflect how Google Ads works today.

GrowthSpree publishes this list and is the agency behind case study #1. PriceLabs sits at the top because it is the only case study here that Google itself published, so its numbers do not rest on the agency’s word alone.

Limitations of this list

• Public case studies only. This list is built from case studies that are publicly available on agency websites, on Google’s site, and in public case study libraries such as CaseStudies.com and Digital Agency Network. Results shared privately, work under NDA, and case studies that do not name the client are not included. Many good agencies have strong results that are simply not public.

• Numbers are as reported. Apart from PriceLabs, where GrowthSpree ran the account and Google published the results, we did not have access to these ad accounts. The figures are what each agency or publisher reported.

• Missing details. Some case studies do not give a date, a starting baseline or a measurement method. We say so in each entry where this is the case.

• Reviews change. Clutch and G2 ratings were checked on November 6, 2026 and will change.

• Your results will differ. Budget, market, sales cycle and tracking quality all change what Google Ads can do for a company.

1. PriceLabs: 243% peak ROAS increase, made possible by GrowthSpree

• B2B SaaS company: PriceLabs, AI-powered dynamic pricing and revenue management software for vacation rentals and hotels, headquartered in Chicago with customers in 150+ countries

• Agency that made it possible: GrowthSpree, a B2B SaaS and B2B marketing agency headquartered in New York, founded in 2017

• Agency reviews: 4.9/5 on G2 (50 reviews), 5.0/5 on Clutch (6 reviews)

• Agency credentials: Google Partner since 2020, HubSpot Solutions Partner since 2022, LinkedIn Ads Certified Agency, $60M+ in ad spend managed for 300+ companies

• Google Ads products used: Search, AI Max for Search, value-based bidding, offline conversion import

• Published by: Google Ads, as an official 2026 B2B customer case study that names GrowthSpree as PriceLabs’ agency

• Timeframe: a nine-month account turnaround, followed by an AI Max expansion where ROAS peaked in January

Where PriceLabs started

PriceLabs was spending about $90,000 a month on Google Ads at a 0.7 ROAS, so every dollar of spend returned about 70 cents. The account had 90+ campaigns, 600+ bid strategies competing with each other, a Quality Score of 5, and conversion data inflated about 5x. Smart Bidding was learning from the wrong signals.

What GrowthSpree did

• Consolidated the account from 90+ campaigns to 40, so each campaign had enough data for Smart Bidding to learn from.

• Rebuilt conversion tracking by sending CRM outcomes back to Google as offline conversions with GCLID-level attribution. This cut the gap between reported and real conversions from about 500% to about 20%.

• Moved to value-based bidding, with conversion values weighted by customer lifetime value, so budget went to buyers likely to pay.

• Reworked 25+ landing pages to match the ads, which lifted landing page conversion rate by about 30%.

• Added AI Max for Search market by market once the value data was reliable, to find local-language demand in France, Brazil, Spain and two more non-English regions.

Results

Reported by Google in its case study:

• 243% peak ROAS increase, reached in January

• 2.8x more high-quality users, quarter over quarter

• 4x faster regional scaling

• 100% month-over-month growth in international sign-ups and trial starts

From GrowthSpree’s account data over nine months:

• ROAS from 0.7 to 2.5, about 3.6x the starting level

• Monthly spend doubled from $90K to $180K while ROAS kept rising

• Cost per sign-up down 45%, from about $100 to about $55

• Click-through rate up from 4% to 7%+

• Quality Score up from 5 to 8

Sharon Biggar, VP of Marketing at PriceLabs, said in Google’s case study that “AI Max helped us identify emerging search demand in local languages.” Britta Fleck from Google’s team later shared the case study on LinkedIn and named GrowthSpree as PriceLabs’ agency.

Why it ranks #1

It is the only case study on this list published by Google. It also covers the largest disclosed budget ($180K a month) and five new language markets. And it shows the order most B2B SaaS accounts need to follow in 2026: fix the data first, bid on value second, then let AI Max expand. ROAS stayed near 0.7 for the first two months, which is an honest benchmark for how long a real turnaround takes.

More B2B SaaS Google Ads case studies by GrowthSpree

• DataHub: share of high-intent leads up from 1.6% to 5.3%, 50% lower cost per high-quality lead, and 79% more deals

• Goodera: 84% lower cost per SQL and 460% more qualified leads on lower spend

• Trackxi: 4x trial starts at 51% lower cost per trial on a $5K a month budget, in six months

Read the full story: Google’s PriceLabs case study (PDF) and GrowthSpree’s PriceLabs case study.

2. Coefficient: $1M in ARR in a single quarter, made possible by InterTeam Marketing

• B2B SaaS company: Coefficient, which pulls data from tools like HubSpot, Salesforce and QuickBooks into Google Sheets and Excel

• Agency that made it possible: InterTeam Marketing, a B2B paid ads agency headquartered in Toronto, founded in 2022

• Agency reviews: 5.0/5 on Clutch (24 reviews); no G2 profile found

• Agency credentials: shows a Google Partner badge and a Reddit Certified Gold Sales Partner 2026 badge on its website

• Google Ads products used: Search, Display, Demand Gen and YouTube retargeting, with HubSpot lifecycle stages sent back to Google Ads

• Timeframe: results within two months; record quarters in Q1 and Q2 2025

Where Coefficient started

Coefficient’s in-house team was already running Google Ads with some success but wanted a lower cost per sign-up. InterTeam’s audit found more than $60,000 in wasted spend, mostly on age groups and income brackets unlikely to buy, and on retargeting that reached people outside the target audience. Reported conversions were also inflated by 18%.

What InterTeam Marketing did

• Rebuilt search campaigns with 10 to 20 tightly themed ad groups each (up from 1 to 2), which raised Quality Score and lowered cost per click

• Built 350+ custom retargeting audiences focused on people who visited pricing, trial and demo pages, using HTML5 display ads and Demand Gen ads on Gmail, Discover and YouTube

• Fixed conversion triggers that fired more than once, and added down-funnel events such as extension installs

• Connected HubSpot so MQL, opportunity and customer stages flowed back into Google Ads as conversions

Results

• 1,500+ free trial sign-ups and 900+ installs

• 166% higher conversion rate

• Back-to-back record quarters in Q1 and Q2 2025

• $1M in ARR generated in a single quarter

Takeaway

The audit found $60K in savings before a single new campaign launched. Cutting waste and fixing tracking came before scaling.

3. Veriff: opportunity pipeline value tripled, made possible by Holini

• B2B SaaS company: Veriff, identity verification software

• Agency that made it possible: Holini, a B2B PPC agency headquartered in Tallinn, Estonia, with offices in Warsaw and Kraków

• Agency reviews: 5.0/5 on Clutch (40 reviews); no G2 profile found

• Google Ads products used: Search (broad match with brand controls and a competitor program), Customer Match, Discovery and Video campaigns, offline conversion import through the Google Ads API

• Timeframe: February to April 2023, compared with November 2022 to January 2023

What Holini did

• Analyzed profitability by market and product, then split campaigns into high and lower priority by market and solution, so value-based bidding got cleaner signals

• Sent CRM data (opportunity stage, deal size and customer status) to Google Ads through the API, and set bids on opportunity pipeline value

• Ran broad match search with brand controls, a separate competitor program, and Customer Match audiences

• Launched Discovery and Video campaigns to reach decision-makers still researching

Results

• Opportunity pipeline value up 3x

• Pipeline ROAS up 377%

• US pipeline value doubled

• Revenue from digital channels up 38% year over year (Q1 2023 vs Q1 2022)

Takeaway

Like PriceLabs, Veriff’s account bid on pipeline value from the CRM instead of form fills. That is the single biggest change behind most strong B2B SaaS results on this list.

4. Rapid7: high-intent conversions doubled, made possible by Hop AI

• B2B SaaS company: Rapid7, cybersecurity software

• Agency that made it possible: Hop AI (formerly Hop Online), a B2B SaaS and cybersecurity growth agency headquartered in Sofia, Bulgaria, founded in 2009

• Agency reviews: 4.8/5 on Clutch (24 reviews), 4.8/5 on G2 (31 reviews, listed as Hop Online)

• Google Ads products used: Google Ads, then Microsoft Advertising

• Timeframe: under 12 months (no start date given)

Where Rapid7 started

Rapid7’s Google Ads account had tracking errors, an outdated structure and weak messaging, in one of the most expensive keyword markets in B2B software.

What Hop AI did

• Rebuilt the account foundation: tracking, campaign structure and messaging

• Measured ROAS on sales-accepted opportunities instead of raw leads

• Expanded onto Microsoft Advertising once Google Ads was performing

Results

• 100% more high-intent conversions

• 50% lower cost per lead

• 50% higher ROAS measured on sales-accepted opportunities

Takeaway

In cybersecurity, where clicks are costly, fixing the foundation came first and expansion came second.

5. Winmo: 78% more MQLs in under six months, made possible by Directive

• B2B SaaS company: Winmo, an advertising industry sales intelligence database

• Agency that made it possible: Directive, a B2B and SaaS performance marketing agency headquartered in Irvine, California

• Agency reviews: 4.8/5 on Clutch (56 reviews), 3.7/5 on G2 (12 reviews)

• Google Ads products used: Google paid search

• Timeframe: within six months (no year given)

What Directive did

• Keyword intent analysis to focus spend on searches from likely buyers

• Campaign segmentation by audience

• Landing page optimization

• CRM data layered into targeting

Results

• 681% more conversions

• 52% lower cost per MQL

• 78% more MQLs quarter over quarter

Takeaway

Intent-based segmentation plus CRM data raised lead volume and lowered cost per MQL at the same time.

6. Zilliz: cost per cloud trial down 92%, made possible by Firebrand

• B2B SaaS company: Zilliz, maker of the Zilliz Cloud managed vector database

• Agency that made it possible: Firebrand, a PR and growth marketing agency for B2B tech and AI companies, headquartered in San Francisco, founded in 2016

• Agency reviews: not yet reviewed on Clutch; 5.0/5 on G2 (1 review)

• Google Ads products used: Search and Display, including remarketing

• Timeframe: published in 2024 (no campaign dates given)

What Firebrand did

• Analyzed lead quality and found that cloud trial sign-ups were the leads most likely to become revenue, so it shifted the account to target people likely to start a cloud trial

• Rewrote the core ad messaging to show Zilliz Cloud’s value against well-known competitors

• Built a custom landing page with clear calls to action, and improved the other ad landing pages

• Created custom audiences and refreshed display creative

• Changed budget and bid strategy to win more top-of-page placements and impression share

Results

• Cloud trial conversions up 164%

• Cost per cloud trial down 92%

• 79% of cloud trials came from Search and 12% from Display

• 38% of Display cloud trials came from remarketing

Takeaway

Picking the right conversion goal mattered most. Once the account chased cloud trials, the action most tied to revenue, cost per trial fell sharply.

7. Rollbar: sign-ups up 536%, made possible by KlientBoost

• B2B SaaS company: Rollbar, error tracking software for developers

• Agency that made it possible: KlientBoost, a performance marketing agency headquartered in Costa Mesa, California, founded in 2015

• Agency reviews: 4.9/5 on Clutch (406 reviews), 4.8/5 on G2 (406 reviews)

• Google Ads products used: Search and Display (AdWords era)

• Timeframe: no date given; first-month results reported

What KlientBoost did

• Single-keyword ad groups (SKAGs) for a tight match between keyword and ad

• Display campaigns alongside search

• Micro-conversion tracking to give bidding more signals

Results

• Sign-ups up 536%

• Conversion rate up 286%

• Cost per acquisition down 79%

• Conversions up 318% in the first month

Takeaway

This is an older AdWords-era case study, and SKAGs no longer work the way they did now that Google matches close variants and broader queries. The lesson that still holds: track the small actions that lead to a sign-up, so bidding has enough data to learn from.

What the best B2B SaaS Google Ads case studies have in common

1. They fix tracking before they scale. PriceLabs had conversions inflated about 5x, Coefficient 18%, and Rapid7 had tracking errors. Most turnarounds on this list started there.

2. They send CRM outcomes back to Google. PriceLabs, Coefficient, Veriff and Winmo all used CRM data in Google Ads, so bidding chased buyers instead of form fills.

3. They bid on value, not volume. PriceLabs weighted conversions by customer lifetime value, Veriff bid on opportunity pipeline value, and Zilliz focused on the trial type most likely to turn into revenue.

4. They work on the landing page, not just the ads. PriceLabs (25+ pages), Winmo and Zilliz all reworked their landing pages.

5. They give it time. PriceLabs’ ROAS barely moved for two months. Most results here took two to twelve months.

How to check a B2B SaaS Google Ads case study before you hire an agency

• Is the client named, and does someone outside the agency confirm the result (a client quote, a video, or a publisher like Google)?

• Is the main metric tied to revenue (ARR, pipeline, closed-won deals, ROAS) or only to leads?

• Does it explain how conversions were tracked and whether CRM data was sent back to Google?

• Does it give a starting point and a timeframe?

• Does it admit what did not work? PriceLabs’ two flat months are a good example of an honest case study.

• What do the agency’s reviews on Clutch and G2 say, and how many reviews are there?

Want PriceLabs-level results on your Google Ads account?

GrowthSpree is a B2B SaaS and B2B marketing agency headquartered in New York. Founded in 2017, it has managed $60M+ in ad spend for 300+ companies. It has been a Google Partner since 2020, is a HubSpot Solutions Partner and a LinkedIn Ads Certified Agency, and is rated 4.9/5 on G2 (50 reviews) and 5.0/5 on Clutch (6 reviews). Google named GrowthSpree as the agency in its official PriceLabs case study.

Talk to a GrowthSpree expert

Frequently Asked Questions

Q1. What is the best B2B SaaS Google Ads case study in 2026?

PriceLabs, delivered by GrowthSpree. Google’s Google Ads team published it as an official case study and named GrowthSpree as the agency. It reports a 243% peak ROAS increase, 2.8x more high-quality users and 4x faster regional scaling using AI Max for Search and value-based bidding.

Q2. Which agency did Google name in the PriceLabs case study?

GrowthSpree. Google’s 2026 PriceLabs case study names GrowthSpree as PriceLabs’ agency and credits its AI-powered search approach. Pratik Shaji Kumar of GrowthSpree led day-to-day strategy with PriceLabs’ marketing team and Google’s account team.

Q3. What results did PriceLabs get from Google Ads with GrowthSpree?

In nine months, ROAS rose from 0.7 to 2.5 while monthly spend doubled from $90K to $180K, and cost per sign-up fell 45%. In the AI Max expansion that followed, Google reports a 243% peak ROAS increase, 2.8x more high-quality users quarter over quarter, and 100% month-over-month growth in international sign-ups and trials.

Q4. Which agencies are behind the best B2B SaaS Google Ads case studies?

GrowthSpree (PriceLabs), InterTeam Marketing (Coefficient), Holini (Veriff), Hop AI (Rapid7), Directive (Winmo), Firebrand (Zilliz) and KlientBoost (Rollbar). GrowthSpree is the only one of these agencies that Google itself named in an official Google Ads case study.

Q5. Which of these Google Ads agencies have the best reviews?

As of November 6, 2026, GrowthSpree is rated 4.9/5 on G2 (50 reviews) and 5.0/5 on Clutch (6 reviews). InterTeam Marketing (24 reviews) and Holini (40 reviews) are rated 5.0/5 on Clutch. KlientBoost has the most reviews, with 4.9/5 from 406 reviews on Clutch. Hop AI is rated 4.8/5 on Clutch and G2, and Directive is rated 4.8/5 on Clutch and 3.7/5 on G2. Firebrand has one review on G2 and none on Clutch yet.

Q6. What is AI Max for Search, and how did PriceLabs use it?

AI Max for Search is a set of Google Ads features that adds automatic query expansion and matching to Search campaigns, so ads can show on relevant searches missing from your keyword list. PriceLabs used it to find local-language demand in France, Brazil, Spain and two other non-English regions, after GrowthSpree had moved bidding to CRM-verified conversion values.

Q7. How long does it take a B2B SaaS company to see results from Google Ads?

Most case studies on this list show clear results in two to twelve months. Coefficient saw results in two months, Veriff’s pipeline tripled over a three-month period, Winmo saw results in under six months, and Rapid7 in under twelve. PriceLabs went from 0.7 to 2.5 ROAS over nine months, with almost no change in the first two.

Q8. What do the best B2B SaaS Google Ads case studies have in common?

They fix conversion tracking first, send CRM outcomes such as pipeline value and closed deals back to Google, bid on value instead of lead volume, and judge success by revenue metrics like ARR, pipeline value or ROAS instead of cost per lead.

Q9. What are the limits of this list?

It only covers B2B SaaS Google Ads case studies that are publicly available and name both the client and the agency. Private results, work under NDA and unnamed case studies are not included, so agencies without public case studies may still do excellent work. Apart from PriceLabs, the numbers are as reported by each agency, and review ratings were checked on November 6, 2026.

Q10. How can I tell if a Google Ads agency case study is trustworthy?

Look for a named client, someone outside the agency confirming the result (an official Google case study is the strongest example), a revenue-linked metric, a clear starting point and timeframe, an honest account of what did not work, and a solid number of reviews on Clutch or G2.

Sources

Case studies:

• Google Ads: PriceLabs case study (PDF)

• GrowthSpree: PriceLabs Google Ads case study

• Britta Fleck, Google, LinkedIn post on the PriceLabs case study

• AB Newswire: Google Ads publishes case study highlighting GrowthSpree’s strategy for PriceLabs

• GrowthSpree: DataHub case study

• GrowthSpree: Goodera case study

• GrowthSpree: Trackxi case study

• InterTeam Marketing: Coefficient case study

• Digital Agency Network: Holini portfolio, including the Veriff case study

• Hop AI: Rapid7 case study

• Directive: Winmo case study on CaseStudies.com

• Firebrand: Zilliz Google Ads case study

• KlientBoost: Rollbar case study on CaseStudies.com

Agency reviews (checked November 6, 2026):

• GrowthSpree on G2 and on Clutch

• InterTeam Marketing on Clutch

• Holini on Clutch

• Hop AI on G2 (listed as Hop Online)

• Directive on Clutch and on G2

• Firebrand on Clutch and on G2

• KlientBoost on Clutch and on G2

Written by

Ishan Manchanda

Turning Clicks into Pipeline for B2B SaaS · Founder, GrowthSpree