OpenServed

Best Lead Generation Agencies (2026) – Ranked by Case Studies

BelkinsVisit Website →
Simply NUC Client-verified
Lead Generation
Consumer Electronics
11-50 Employees
N/A
Round Rock, TX
N/A
  • 109 qualified appointments booked
  • 80% cold email open rate
AMI Global Client-verified
Lead Generation
Manufacturing
11-50 Employees
N/A
Las Vegas, NV
N/A
  • 100+ appointments booked in 18 months
  • 29 appointments with enterprise businesses
MONA Solutions Client-verified
Lead Generation
Finance
1-10 Employees
N/A
Thousand Oaks, CA
N/A
  • 15% sales closing rate
  • 18 appointments scheduled in 3 months
Jumpfactor - MSP MarketingVisit Website →
CalTech Client-verified
SEO, Lead Generation, Web Design
MSP
51-200 Employees
N/A
San Angelo, TX
N/A
  • $4.3M in new revenue
  • $78,000 in new MRR
  • Inbound leads grew from 0-2 to 23+ qualified per month
Sunco Communication & Installation Client-verified
SEO, Lead Generation, Web Design
Telecom
11-50 Employees
N/A
Edmonton, Canada
N/A
  • Traffic tripled
  • Keyword rankings grew from 1,900 to 7,000+
  • 12+ leads per month
Power Consulting (referral dependency) Client-verified
SEO, Lead Generation, Web Design
MSP
11-50 Employees
N/A
New York, NY
N/A
  • $10M in revenue unlocked
  • Broke out of 5-7% annual growth
  • 15-29 SQLs per month
Social BloomVisit Website →
Bifrost Client-verified
Lead Generation, Email Marketing
AI
11-50 Employees
N/A
San Francisco, CA
N/A
  • $12.5M in pipeline value in one year
  • 10-20 calls booked per month
  • 32% average open rate, 4% positive reply rate
IFPG & WorkWave Client-verified
Lead Generation, Email Marketing
Franchise
51-200 Employees
N/A
Parlin, NJ
N/A
  • $13M+ combined pipeline value across two engagements
  • $8M+ pipeline for IFPG
  • $5M+ pipeline for WorkWave
Advertise Purple Client-verified
Lead Generation, Email Marketing
Marketing
51-200 Employees
N/A
Santa Monica, CA
N/A
  • $1.5M in pipeline value generated in 90 days
  • 50+ SQLs generated
  • 3 outbound campaign verticals (TikTok Shop, Amazon, affiliate)
INSIDEAVisit Website →
IPS Group Client-verified
Lead Generation
Manufacturing
51-200 Employees
N/A
San Diego, CA
N/A
  • 100% Lead routing accuracy
  • 0 Cross-region leakage
  • Single click RFQ generation
  • Real-time Pipeline visibility
AdLib Media Group Client-verified
Lead Generation
Marketing
1-10 Employees
N/A
New York, NY
N/A
  • 370% Deal creation growth
  • 73 Deals in a single week
  • 85.43% Pipeline in active deals
  • Reduced avg ticket resolution time
Skid Pro Client-verified
Lead Generation
Manufacturing
11-50 Employees
N/A
Alexandria, MN
N/A
  • 100% Product matching accuracy after SKU restructuring
  • 6 weeks Sales team fully onboarded and operational on HubSpot
  • Real-time Order sync replacing hours of batch polling delay
  • 22 users Onboarded with full role-based permissions
The Pedowitz GroupVisit Website →
TraceLink Client-verified
Lead Generation
Technology
1K-5K Employees
N/A
Wilmington, MA
N/A
  • $20M revenue impact
  • Go-to-market accelerated by 6 months
  • 100% continuity during the transition
Rackspace Client-verified
Lead Generation, Email Marketing
Technology
5K-10K Employees
N/A
San Antonio, TX
N/A
  • 55% increase in MQLs
  • 84% increase in average revenue per user
  • 300% increase in process automation
Ipswitch Client-verified
Lead Generation, Email Marketing
Technology
201-500 Employees
N/A
Lexington, MA
N/A
  • 1000% growth in MQL pipeline conversion
  • 62% growth in MQLs
  • 85% less troubleshooting time
R17 Ventures AGVisit Website →
Assenagon Asset Management Client-verified
Social Media Ads, Lead Generation
Finance
51-200 Employees
N/A
Munich, Germany
N/A
  • 100% increase in monthly baseline leads
  • Full tracking and CRM integration
  • Multi-channel acquisition engine
Das Zelt Client-verified
Lead Generation, Social Media Ads
Entertainment
51-200 Employees
N/A
N/A
N/A
  • 2,000+ B2B leads in 9 months
  • 16x return on ad spend
  • Growth in both B2C ticket sales and B2B revenue
DCAP Client-verified
Lead Generation, Social Media Ads
Finance
N/A
N/A
N/A
N/A
  • CHF 75 cost per lead vs CHF 100 benchmark (25% lower)
  • Target of 50 leads per month
  • Pre-launch strategy and customer journey mapped
Outbound SystemVisit Website →
FireVibe Web Design Client-verified
Lead Generation, Email Marketing
Marketing
1-10 Employees
N/A
Hagerstown, MD
N/A
  • 15 meetings booked in 1 month
  • 2 deals closed in 1 month
AVID Media Client-verified
Lead Generation, Email Marketing
Advertising
N/A
N/A
N/A
N/A
  • $862K+ qualified pipeline across 35 markets
  • 95 meetings booked in 8 months
  • Deliverability fixed with 100 Outlook inboxes on private Azure hosting
Tortoise Finance Client-verified
Lead Generation, Email Marketing
Finance
N/A
N/A
New York, NY
N/A
  • $200K+ net profit in 2 years
  • 4 new clients in 6 months
TripleDart DigitalVisit Website →
Fyle Client-verified
PPC, Lead Generation
SaaS
51-200 Employees
N/A
Newark, DE
N/A
  • Demos booked +34% and cost per demo down 27%
  • Paid search revenue +30%
  • Search impressions nearly doubled
Atlas HXM Client-verified
PPC, SEO, Lead Generation
Professional Services
1K-5K Employees
N/A
Chicago, IL
N/A
  • 4x deal volume and 3x deal quality in 7 months
  • Conversion rate +34%
  • Cost per opportunity down 27%
  • MQL-to-opportunity rate from 41% to 55%
  • Google Ads pipeline delivered ~5.5x ROI on spend
CleverTap Client-verified
PPC, Social Media Ads, Lead Generation
SaaS
N/A
N/A
Mountain View, CA
N/A
  • Cost per SQL down 42% YoY in H1 and 37% in H2
  • Cost per opportunity improved 20% year over year
  • ROAS improved 45%
  • Closed won improved 60%
  • Pipeline achievement at 113% of FY24 quota
Sapper Consulting LLCVisit Website →
Thames Management Resources Client-verified
Lead Generation, Email Marketing
Consulting
N/A
N/A
N/A
N/A
  • $26.7K revenue generated
  • 50% lifetime ROI
  • 56 lifetime meetings booked
  • 6 deals closed
(un)Common Logic Client-verified
Lead Generation, Email Marketing
Marketing
N/A
N/A
N/A
N/A
  • $16K revenue generated
  • 91 lifetime meetings booked
  • 23% lifetime ROI
Intelligent Product Solutions (IPS) Client-verified
Lead Generation, Email Marketing
Software Development
51-200 Employees
N/A
Hauppauge, NY
N/A
  • More prospect introductions in 8 months than in the prior few years
  • Full sales pipeline from outbound email
SalesARVisit Website →
Foxit Client-verified
Lead Generation
Software Development
11-50 Employees
N/A
Skopje, North Macedonia
N/A
  • 3,000 contacts researched
  • 32 appointments scheduled
  • 4% reply rate
Bulu Client-verified
Lead Generation
Logistics
201-500 Employees
N/A
Lincoln, NE
N/A
  • 22,000+ contacts researched
  • 875 replies
  • 75 appointments scheduled
ZoomMedia
Lead Generation
Marketing
11-50 Employees
N/A
London, United Kingdom
N/A
  • 5,000 contacts researched
  • 11 appointments scheduled
  • 3% reply rate
MarketJoy, Inc.Visit Website →
Publicity.ai Client-verified
Lead Generation, Email Marketing
SaaS
1-10 Employees
N/A
San Francisco, CA
N/A
  • 2 major deals closed in 2 months
  • 6 high-quality leads in month two
  • 4-5 qualified leads per month ongoing
Lindquist Machine Corp Client-verified
Lead Generation, Email Marketing
Manufacturing
N/A
N/A
Green Bay, WI
N/A
  • 65 high-value meetings in 6 months
  • 15 meetings in the first month
  • Months 4-6 delivered double the leads of months 1-3
Peet's Coffee
Lead Generation
Food & Beverage
N/A
N/A
Emeryville, CA
N/A
  • Dramatic increase in sales demo show rates
  • More engaged, better-informed prospects
New Perspective MarketingVisit Website →
CHASM Advanced Materials Client-verified
Web Design, Lead Generation
Manufacturing
11-50 Employees
N/A
Canton, MA
N/A
  • More than tripled lead generation in under 90 days
  • Site visits tripled after launch
  • More leads and booth visits than any other exhibitor at the industry's largest trade show
Carbon Clean Client-verified
Branding, SEO, Lead Generation
Environmental Services
51-200 Employees
N/A
London, United Kingdom
N/A
  • $113M+ pipeline value created in the first year from online sources
  • +400% organic traffic over 6 months
  • +162% lead generation YoY
  • Millions added to pipeline within 60 days
Socomec
Content Marketing, Web Design, Lead Generation
Manufacturing
1K-5K Employees
N/A
Benfeld, France
N/A
  • +341% lead generation YoY
  • +174% conversion rate YoY
  • US market entry over just over two years
Kuno CreativeVisit Website →
Total Security Solutions Client-verified
PPC, Lead Generation
Security
N/A
N/A
N/A
N/A
  • Cost per lead -22.16%
  • ROI +19%
  • Sales-qualified leads +44.27% in Q3 vs. Q1
  • HubSpot dashboards for MQLs, SQLs, deals and revenue
Kendal at Home Client-verified
Content Marketing, Lead Generation, Email Marketing
Senior Living
N/A
N/A
N/A
N/A
  • Sales cycle cut by 42 months for half of new sales
  • Customer acquisition cost -24% while expanding into 3 new locations
  • Bottom-funnel offer conversions +95% year over year
Aramark
Content Marketing, Lead Generation
Professional Services
10K+ Employees
N/A
Philadelphia, PA
N/A
  • 972 marketing-qualified leads
  • $209M in open opportunities
  • 55 closed sales
TANK New MediaVisit Website →
Pack Leader USA (Order Fulfillment) Client-verified
Lead Generation
Manufacturing
11-50 Employees
N/A
Grandview, MO
N/A
  • 75% more deals with the existing sales team
  • HubSpot and Monday.com order fulfillment workflow
Lansing Trade Group (Market Minute Video) Client-verified
Content Marketing, Lead Generation
Agriculture
N/A
N/A
Overland Park, KS
N/A
  • 266% increase in Market Minute subscribers in four months
  • 79% subscriber list growth in two months after workflow changes
  • ~42% of workflow users subscribed in six months
Bennett Packaging
Web Design, Lead Generation
Manufacturing
N/A
N/A
N/A
N/A
  • More website traffic, better-qualified leads and improved close rates
  • Integrated CRM to support the pipeline
Waypost MarketingVisit Website →
Fostering Great Ideas Client-verified
Content Marketing, Lead Generation
Non Profit
11-50 Employees
N/A
Greenville, SC
N/A
  • 12+ programs now serve hundreds of foster children a year
  • 1,200+ members across foster parent communities
  • Increased nationwide exposure with a HubSpot CRM and sales setup
Solutions ITW Client-verified
Branding, Web Design, Lead Generation
SaaS
N/A
N/A
N/A
N/A
  • Goal of doubling market share in 12 months from a 7% base
  • Sales process and HubSpot CRM built in 90 days
  • Rebranded website converted the company's first inbound lead
Vista Developers
Content Marketing, Lead Generation
Real Estate
N/A
N/A
Hendersonville, NC
N/A
  • Moved from PPC and word of mouth to lifestyle-led content and lead nurturing for Blue Ridge Mountain communities
Home Care Marketing ProsVisit Website →
Assisting Hands Boston Northwest Client-verified
Lead Generation, Email Marketing, Branding
Senior Care
N/A
N/A
Massachusetts, United States
N/A
  • Lead volume quadrupled
  • Applicant follow-up in 30 seconds instead of days
  • One recruiter now supports a growing business
Trusted Hearts Client-verified
Web Design, Local SEO, Lead Generation
Senior Care
N/A
N/A
N/A
N/A
  • Private-pay inquiries up 5x
  • 3-5 minute response to every inquiry by chat, email or phone
  • 25%+ conversion rate
  • #1 local search ranking
Acceleration PartnersVisit Website →
CouponFollow (AP Brand Newsletter) Client-verified
Email Marketing, Lead Generation
Marketing
51-200 Employees
N/A
New York, NY
N/A
  • 30K+ newsletter recipients with a 56% open rate
  • +37% average revenue increase for participating brands
  • +13% average clicks and +10% average transactions for brands
DAZN
Lead Generation
Media & Broadcasting
1K-5K Employees
N/A
London, United Kingdom
N/A
  • 124+ new publishers recruited in three months
  • 78% publisher activation rate
  • 7.2x ROI
  • 492,648 clicks generated
  • 68% share of affiliate conversions delivered by AP
Swarovski (Platform Migration)
Lead Generation
Jewelry
10K+ Employees
N/A
Wattens, Austria
N/A
  • 81% of partners sale-active within two weeks
  • 98% of total revenue migrated within three weeks
  • Single platform for a program spanning 20+ countries
Soffront CorporationVisit Website →
Imagetek Client-verified
Lead Generation
Technology
N/A
N/A
N/A
N/A
  • About 20% efficiency increase (75% expected at full rollout)
  • 360-degree client view with a customer portal
  • All departments integrated in one CRM
Leica Geosystems
Lead Generation
Manufacturing
1K-5K Employees
N/A
Heerbrugg, Switzerland
N/A
  • Central incident database for developers worldwide
  • Used by all software development teams
  • Stable product development time
StoneEagle Group
Lead Generation
Software Development
N/A
N/A
Richardson, TX
N/A
  • Workload, issues and installations managed in one place
  • Support and performance metrics developed
  • Complete visibility into developer efforts
WiT GroupVisit Website →
Search Solution Group Client-verified
SEO, Web Design, Lead Generation
Professional Services
51-200 Employees
N/A
Charlotte, NC
N/A
  • +40% inbound leads by Q1 2023
  • +50% organic search traffic over six months
  • +35% click-through rate after moving to responsive search ads
81 North Companies
Branding, Lead Generation
Construction
N/A
N/A
N/A
N/A
  • Leads delivered at 3x the anticipated rate
  • Micro-site and landing pages launched after three weeks
Anthon GmbH
Lead Generation, Branding
Industrial
N/A
N/A
N/A
N/A
  • Booth at the International Woodworking Fair with badge-scan lead capture
  • Client replicated the booth materials for German trade shows
1GS Digital AgencyVisit Website →
The Agency Insurance Group Client-verified
Lead Generation, Email Marketing
Insurance
N/A
N/A
Boerne, TX
N/A
  • 10x+ ROI on the engagement
  • 30%+ LinkedIn connection rate and 10+ new appointments
  • 6-figure deal closed within 90 days
Phil Klein Insurance Group
Lead Generation, SEO, Email Marketing
Insurance
11-50 Employees
N/A
West Bloomfield, MI
N/A
  • 1,400+ prospects generated in 60 days
  • Ranking for 177 keywords, up 132 in 60 days
  • 347 LinkedIn conversations started in under 60 days
KBI Benefits
Lead Generation, PPC, SEO
Insurance
11-50 Employees
N/A
Los Altos, CA
N/A
  • 31 B2B leads and 28 meetings in under 60 days
  • PPC landing pages converted 5.36% of visitors at about $138 per conversion
Maven Collective MarketingVisit Website →
Long View Client-verified
Lead Generation, PPC, Social Media Ads
MSP
1K-5K Employees
N/A
Calgary, Canada
N/A
  • $41M open pipeline revenue in 2025
  • 2,579 MQLs acquired in 2025
  • 16% MQL to SQL conversion rate
  • 34 Microsoft-funded campaigns launched
  • 7.6M Microsoft Ads impressions
Steeves and Associates
Content Marketing, Email Marketing, Lead Generation
MSP
N/A
N/A
N/A
N/A
  • 2,000%+ increase in website traffic
  • 800%+ increase in event marketing and email leads
  • 12+ Microsoft Marketplace / Co-Sell listings
Bonzai
Web Design, Content Marketing, Lead Generation
SaaS
N/A
N/A
N/A
N/A
  • 176% increase in revenue
  • 35% increase in marketing qualified leads
  • 67% increase in sales qualified leads
  • Successful acquisition
CrowdcreateVisit Website →
Saratoga Group Client-verified
Lead Generation
Real Estate
N/A
N/A
N/A
N/A
  • $7M raised through investor outreach strategies
  • Meeting arranged at the Opportunity Zone Expo, the largest investor conference in the US
Apex Game Studios
Lead Generation
Gaming
N/A
N/A
N/A
N/A
  • 80% open rate and 10% reply rate on investor outreach
  • About 8% of investors expressed interest or booked meetings
AITECH
Lead Generation
Blockchain & Cryptocurrency
N/A
N/A
Dubai, United Arab Emirates
N/A
  • 53.3% open rate, 22.7% click-through rate and 3.7% reply rate on investor outreach
Code ConspiratorsVisit Website →
Global Restoration Client-verified
SEO, PPC, Lead Generation
Home Services
N/A
N/A
N/A
N/A
  • Largest project ever ($250K+) closed within 90 days
  • Website health improved 14% in six months
Deming Law
Web Development, Lead Generation
Law Firm
51-200 Employees
N/A
Atlanta, GA
N/A
  • $240K+ in annual labor savings
  • 6,000+ hours reclaimed
  • Intake response time cut from days to minutes
Teplis
Web Design, Email Marketing, Lead Generation
Travel
11-50 Employees
N/A
Atlanta, GA
N/A
  • 70% audit score improvement
Adams & KnightVisit Website →
Webster Bank (Big Goals Bracket) Client-verified
Lead Generation, PPC
Bank
1K-5K Employees
N/A
Stamford, CT
N/A
  • 5M impressions at a low CPM
  • 95% bracket completion rate
  • 3K+ new leads to nurture
Health System Spine Care Campaign
Social Media Ads, Lead Generation
Healthcare
N/A
N/A
N/A
N/A
  • Double-digit increase in patient leads
  • 477 signed up for classes, calls or forms in one month
  • 3M+ impressions and 19K+ website visits
StringCan InteractiveVisit Website →
Profile Precision Extrusions Client-verified
PPC, Lead Generation
Manufacturing
11-50 Employees
N/A
Phoenix, AZ
N/A
  • 550% increase in high-quality leads
  • 73% increase in conversions
  • 58% increase in clicks
  • 10% decrease in cost per lead
Your Hustler, Inc.Visit Website →
EcoSmart Inc Client-verified
Lead Generation, SEO, Web Design
Construction
11-50 Employees
N/A
Sarasota, FL
N/A
  • Organic traffic +255.11% and impressions +164.96%
  • 327 leads generated in 10 months
  • Ranked #1 to #3 in Google for six target keywords, e.g. 'solar assisted heat pumps'
  • Disavowed 400+ toxic backlinks and earned press mentions on 20+ news outlets
  • A single $180,000 solar lights order closed in one day
FMO MediaVisit Website →
Detroit Immigration Law Client-verified
Social Media Ads, Lead Generation, Content Marketing
Law Firm
11-50 Employees
N/A
Detroit, MI
N/A
  • Grew from 0 to 60K followers and 1.1M engagements in under six months
  • Q1 2025 revenue of $82,443, up 87.2% year over year
  • 121 new clients from organic and paid content, up 117% year over year
  • $50K+ in revenue came directly from short-form video content
  • 16M+ impressions across 222 videos, with top videos reaching 3.1M views
EWR DigitalVisit Website →
Red-D-Arc (BotX Robotic Welder Launch) Client-verified
Social Media Ads, PPC, Lead Generation
Industrial
201-500 Employees
N/A
Austell, GA
N/A
  • +90% leads, reaching 200+ leads per month
  • Opened a new robotics center in Atlanta to meet demand
  • Sales team expanded after the launch
inSegmentVisit Website →
Kaspersky Lab Client-verified
Lead Generation, PPC, Content Marketing
Cyber Security
5K-10K Employees
N/A
Moscow, Russia
N/A
  • 700% increase in qualified leads
  • 50% lower cost per sales-qualified lead
  • Program supplies over 90% of the company's leads
Rocket ClicksVisit Website →
Sterling Lawyers (AI Adoption) Client-verified
Lead Generation
Law Firm
51-200 Employees
N/A
Menomonee Falls, WI
N/A
  • Average revenue per attorney doubled from $270K+ to $600K+
  • Client inquiry triage cut from 1.5-8 hours to real time
  • ~200 files per month closed with fixed-fee audits
  • Three attorneys generating up to $1M per year

Find the best Lead Generation agencies in your industry