OpenServed

Best Digital Marketing Agencies for Large Business (2026) – Ranked by Case Studies

SEO, Content Marketing
Transportation
201-500 Employees
N/A
N/A
N/A
  • +22% organic traffic in the first quarter after launch
  • +35% top-3 keyword rankings
  • +28% organic leads
  • Domain Authority from 42 to 47
Social Media Ads, Lead Generation
Technology
501-1K Employees
N/A
Sunnyvale, CA
N/A
  • $71 average cost per lead on LinkedIn Message Ads
  • 39% lead form completion rate
SEO, PPC
Bank
501-1K Employees
N/A
Danbury, CT
N/A
  • Organic search traffic +61% after the website launch
  • Managed SEO and paid advertising through a site relaunch
Content Marketing, Branding
Healthcare
501-1K Employees
N/A
San Jose, CA
N/A
  • They began to develop go-to-market communications that positioned the company as the industry leader.
  • It wasn’t just a go-to-market story; it was the seed of a new internal identity.
Web Design, CRO
Consumer Goods
201-500 Employees
N/A
Oak Brook, IL
N/A
  • Product showcase restructured into an intent-driven path from symptom to solution
  • Reviews and dermatologist credibility placed where they reassure
Lead Generation, Email Marketing
Security
201-500 Employees
N/A
Atlanta, GA
N/A
  • 341 Appointments in 8 months
  • $300K+ Closed revenue
SEO, Link Building
Veterinary
201-500 Employees
N/A
Berwyn, PA
N/A
  • 5,231% increase in keyword rankings (Oct 2019 to May 2020)
  • 1,600% increase in keywords in the top 3 positions (Oct 2019 to May 2020)
Web Development, Web Design
Manufacturing
201-500 Employees
N/A
Braselton, GA
N/A
  • 30% fewer service inquiries

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