Best Lead Generation Agencies (2026) – Ranked by Case Studies
Arctic Air Conditioning Client-verified
- $81,219 in additional revenue from a $5,500 investment
- 100 additional booked jobs in one year
- 29% of phone calls flagged for lead recovery
- 988 outbound SQLs over 33 months
- $57.6M in pipeline value within two years
- $836,000 in closed annual recurring revenue
- 138 SQLs in the first 90 days
- 1,300+ meetings with key decision-makers
- Average lead score of 8.89/10
- 28 SDRs hired by Couchbase from memoryBlue
- Public sector accounts engaged (FAA, Raytheon, DHS, USMC, NOAA)
- 10 memoryBlue SDRs converted to full-time employees
- Converted reps now carry multi-million-dollar quotas
- Best year and best Q1 ever, per Couchbase
- Through a deeply embedded partnership, we redefined how marketing functioned—bridging siloes, accelerating execution and preparing the enterprise for…
- The campaign positioned ING as a sustainable finance leader, attracting key stakeholders and underscoring ING’s expertise in sustainability finance…
- Supercharging B2B Lead Generation With Hybrid-ABM
- Over the course of the campaign, Riverbed achieved 105% of its quarterly revenue goal.
- The campaign generated an astounding $6.7 million in net-new revenue, showcasing an impressive 18% year-over-year growth.
- About 50% less manual work
- Estimated 25% increase in monthly productivity
- ~90% of tickets created through automated forms
- 100% sales adoption in HubSpot
- CRM cleanup and standardization for streamlined sales and marketing
- 183 new MQLs from a conference digital overlay
- High engagement at an in-person event
- Conversions 3 to 12 per month (+300%)
- Revenue $27K to $108K (15.4x to 37x ROAS)
- Clicks 3,331 to 3,541
- Results in 2 months
- Leads 4 to 40+ per month (10x)
- Cost per acquisition $1,165 to $111 (-75%)
- Revenue $3,200 to $36,000
- Results in 3 months
- Qualified calls 155 to 229 (+48%)
- Ad spend $10,717 to $10,594
- Annual revenue $31,000 to $45,800 (4.32x ROAS)
- Results in 3 months
- Annual sales from about $350,000 to a best year of $1.2M
- Over a decade of association advertising
- Next goal: $2M
- E-newsletter ranks among the top three member benefits
- Open rates above 50% every year
- Steady non-dues revenue from advertising
- Non-dues revenue +350% YoY
- 40+ active advertisers across retargeting, web and email
- Newsletter open rate 75% (3x industry average) and 21% click rate
- Interactive product spotlight promoted to Prepared Foods and Beverage Industry readers
- Higher website engagement
- More high-quality leads and analytics for next campaigns
- Magazine revived in 2023 after a hiatus since 2020
- Custom eMagazine experience
- Delivered to The NEWS and Engineered Systems audiences plus the member list
- Analytics data and qualified leads from issue deployment
- Nearly 900 qualified leads from a co-branded eBook
- eBook sent to the Engineering News-Record subscriber list
- Repositioned from legal tech to a field-focused construction tool
- $700M in revenue generated
- 2,000+ appointments tracked and 100+ deals attributed
- 43% of revenue driven by digital leads
- Connected event marketing across email, social and landing pages to the full buyer journey in HubSpot
- Three Life Plan campuses in Naples, FL
- New website with grant, donation and scholarship management centralized in HubSpot
- Replaced disconnected tools and manual spreadsheets with automated workflows
- 3x return on the marketing campaign (per the client's marketing director)
- 119,922 impressions vs. 18,923 previously (6.3x)
- 2 ballot measures passed with an average 72% of the vote
- 6 candidates elected
- 95,020 impressions to new movers over a 4-month campaign (4.8x increase)
- Website visits attributed through QR codes and a lift in weekly attendance
- Five East Bay church locations
- +250% sales team efficiency
- +70% lead management efficiency
- 100% visibility into the customer journey
- 100% visibility into lead tracking across channels
- +354% nurturing email click-through rate
- 33.3% nurturing email click rate and 32.1% open rate
- First closed deal attributed to the program
- 100%+ return on ad spend and on combined agency and software spend
- Positive ROAS within the first 6 weeks
- +641% increase in qualified leads
- 125K+ website visitors per month
- HubSpot integrated with Microsoft Dynamics CRM
- Content serving both B2C homeowners and B2B trade audiences
- 11% increase in average closed-won deal size
- 17% projected year-over-year revenue growth
- 65% reduction in ticket resolution time
- 49% projected year-over-year revenue growth
- 29% increase in average closed-won deal size
- 42% lift in sitewide conversion rate in four months
- About 90 net-new monthly leads
- No disruption to SEO performance
- #1 ad recall rate in the industry two years running
- 281 new marketing-qualified leads
- 10,000 page views across 3 new websites in month one
- 100% growth in social media across all platforms
- 70% lift in sales
- New sales cycle of 26 days, compared to 24 months
- More RFQs in the first 3 months than the entire previous year
- $2.1 million in additional product sales in the first year
- 30,000+ MQLs, 68% deemed qualified by sales reps
- Leads +57% year over year
- 10% average CTR, nearly 5x the industry average
- 50% decrease in cost per lead
- 2x increase in click-through rates
- 50% increase in lead volume and calls
- 7.12x increase in qualified leads
- 117% decrease in cost per lead
- Exceeded annual MQL targets (100%+)
- 2x increase in loan application rate
- 9x increase in monthly qualified traffic
- 6x increase in keywords in top 3 positions
- 8x increase in keywords in top 4-10 positions
- 2x increase in brand recognition
- $4,340 in ad spend generated 2,711 clicks
- 2.65% CTR, well above the LinkedIn average
- $1.60 cost per click
- $123 cost per lead
- Cost per SQL down 75%+, from $1,000-$1,500 to $250-$300
- YouTube subscribers up 33%, to about 40K from under 30K
- 18+ months of compounding performance
- $71 average cost per lead on LinkedIn Message Ads
- 39% lead form completion rate
- 35.2x return on investment
- $172,873 revenue generated
- 212 leads, 35% chat-to-lead conversion rate
- 17.3x return on ad spend
- $107,638 trackable revenue
- 810 leads generated
- 92% share of all site impressions from the blog
- 13.9x return on investment on LiveChat
- $18,796.75 booked revenue from LiveChat
- 51% increase in organic traffic and 73% increase in blog traffic
- 61% increase in new leads
- LinkedIn training for sales: 353% more interactions and 424% more shares
- 300% increase in new contacts
- 100% increase in sales qualified leads (SQLs)
- 90% increase in monthly website visits
- 98% increase in webinar registrations
- 72% increase in monthly blog views
- Book launch hit #1 New Release on Amazon in two categories
- 357 new form submissions for content downloads
- 82% increase in organic traffic
- 86% increase in time on page
- 31% increase in keyword ranking and 20% average content conversion rate
- 50% of units sold
- 100-150 qualified leads per month
- 1M+ people reached
- 4.5M+ ad impressions
- 2,178+ website registrations
- 114% growth in monthly ad reach
- 74% increase in monthly ad engagement
- 100,000+ people reached per month on average
- 59+ qualified leads per month
- 107% increase in leads from the initial campaign
- 259% increase in leads (April to May)
- 11+ year partnership
- 744 leads secured through PowerPlay campaigns (150+ top-tier prospects)
- 100 new qualified leads from one PowerPlay
- 31 completed lead conversions from LinkedIn content
- 36,000 impressions with C-suite executives at Fortune-500 retailers
- Banking Regulatory Index launched as a thought-leadership and lead-generation asset
- Content aimed at bankers, regulators and community financial institutions
- 591 media mentions over 9 months
- 2,375 leads generated
- 245 teachers applied (max avg cost $205 per application)
- 21 teachers hired (max avg cost $710 per teacher)
- 6,602,651 impressions
- Total revenue up 69.7% within one month
- Ticket value of identified leads 27.8% above average
- Identifies about 4,500 website visitors per month
- In Q2, sales up 1.55% and service up 5%
- New and used sales up 60% while cutting advertising costs
- Nearly 19,000 units sold
- 643 leads generated in 6 months
- $12 cost per conversion
- Coverage across New Jersey and Philadelphia
- Higher click-through and conversion rates from optimized landing pages
- Hundreds of inbound leads within the first 90 days
- $60,000-$100,000 in new revenue
- From zero inbound lead generation to consistent daily inquiries
- Automated Google review requests driving social proof
- $16,600 total ad spend (April-October 2023)
- 107 leads and 393 inbound phone calls
- $68.06 cost per conversion vs. a $150 target
- 1,900 website clicks
- 265 average leads per month
- 81,000 page views over a 4-month campaign
- 1.4M impressions over 4 months
- 23% increase in marketing attributed revenue
- 35% YoY increase in website engagements
- 81% YoY increase in form submissions
- 37% YoY increase in downloads
- #1 in all six dealer satisfaction categories
- 2.4M impressions
- 4,600 downloads
- 300 leads
- 300% increase in website traffic
- 155% increase in new leads
- 35% decrease in time to close a sale
- 8% increase in close rate from new leads to customers
- YouTube channel at nearly 3,000 subscribers
- 66% increase in high-quality lead generation in 4 years
- 800% increase in high-intent organic keyword rankings
- 726% ROI on digital marketing program
- 317% ROI on digital advertising program
- 464 qualified leads in 15 days at $0.52 per lead
- Facebook lead generation campaign run on a $239/month budget
- Active users up 2,534% and total views up nearly 2,000% in a year
- #1 for "12 traits of a narcissist" and top 3 for "adjustment disorder"
- Google organic became the top traffic source at 51%
- 15% visibility score across ChatGPT, Perplexity and Gemini
- 53 form starts at a 2.97% conversion rate
- $15M+ in gross revenue from new customers in 7 months on a $2,500/month ad budget
- $1M in customer gross revenue within the first 30 days
- 80+ hours of weekly workflow efficiencies gained
- Unified marketing vision across five campuses
- 4x return on investment
- New users up 191%
- Organic sessions up 39%
- 181% increase in leads
- 155% increase in paid media traffic acquisition
- Target CPA maintained despite rising costs
- 120% increase in high-value leads
- 33% decrease in cost per acquisition
- 35% increase in paid traffic acquisition
- 62.7% increase in conversion rates
- 336% more leads than predicted, even on a reduced budget
- 71% lower cost per lead than expected
- 24% lead conversion rate, over 4x the 3.37% industry average
- 20-50% more new clients per month from website search traffic
- 66% increase in hardscape installations, from 12 to 20 jobs in a year
- 294% more leads than predicted from search
- Average 25% lead conversion rate, over 6x the 3.37% industry average
- PPC cost per lead 63% below projections
- About 4x as many new customers as projected at a 50% close rate
- 171+ calls from Google Search Ads
- 112+ conversions via Google Search Ads
- 100+ calls from Local Services Ads (June 1 to Sept 14)
- Conversion actions via Google Ads +200% (+300% in the last quarter)
- Organic traffic +37% YoY
- Users +35% since SEO began
- Average occupancy from 71% to 89% in 7 months
- 4.2x return on ad spend
- Cost per lead -63.8%
- 500 qualified leads
- HubSpot CRM implemented across three communities
- 1,200+ leads in six months
- Organic website traffic +75%
- Conversion rate +35%
- Cost per lead -28%
- Lead volume +42%
- 14,000+ event signups in 90 days at 758% ROAS
- ~10,000 emails by month 3 at 370% ROAS
- 5,500 emails in first 30 days at 258% ROAS
- $2M revenue from event ad campaigns
- $453K gross profit in H2, up 40% from $322K
- 135% gross profit growth, August to September
- 5-7 new creatives tested every week
- 65% increase in clicks
- 62% improvement in click-through rate
- 40% increase in conversions
- Restructured sitemap and navigation around user needs
- Lead generation forms added to key pages
- Filterable projects section by location, sport, facility and product
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