Best SaaS Email Marketing Agencies (2026) – Ranked by Case Studies
Invisibly Client-verified
PPC, SEO, CRO, Email Marketing
SaaS
11-50 Employees
N/A
St. Louis, MO
N/A- 65% MoM Decrease in CAC
- 84% Increase in Organic Website Traffic
- 400% Increase in User Retention QoQ
- 103% MoM Increase in App Installs
PPC, SEO, CRO, Email Marketing, SMS MarketingSaaS1K-5K EmployeesN/AMountain View, CAN/A- 500% Increase From Trial Sign-Ups to Active Users
- 45% Increase in Trial Sign-Ups Using Persona-Specific Search Ads
- 100% NPS Score
Publicity.ai Client-verified
Lead Generation, Email MarketingSaaS1-10 EmployeesN/ASan Francisco, CAN/A- 2 major deals closed in 2 months
- 6 high-quality leads in month two
- 4-5 qualified leads per month ongoing
Lead Generation, Email MarketingSaaSN/AN/ASan Francisco, CAN/A- 306 leads from 114,423 emails sent
- Exceeded meeting goals by 100% each month
- 183 follow-up conversations
- Opt-outs and competitor replies under 2%
iOFFICE Client-verified
Web Design, Content Marketing, Email MarketingSaaS201-500 EmployeesN/AHouston, TXN/A- Website leads +44.72%
- Marketing-to-sales qualified leads +83%
- Organic website traffic +33.54%
- New customer acquisition +66%
PPC, Email Marketing, Lead GenerationSaaSN/AN/AN/AN/A- Website sessions +47% year over year
- New contacts +288% vs. the prior year
- 61 deals influenced, worth $1.6M
- 700K+ paid impressions and 10 closed deals from paid ads
- Search impression share +29%
Autodesk Client-verified
Lead Generation, Email MarketingSaaS10K+ EmployeesN/ASan Francisco, CAN/A- 35 Appointments booked in 4 months
- 110% KPI achieved
Lead Generation, Email MarketingSaaS51-200 EmployeesN/AZurich, SwitzerlandN/A- 28 meetings booked in 7 months
- 43 average replies per month
Content Marketing, Email MarketingSaaS501-1K EmployeesN/ASan Francisco, CAN/A- 1156 additional organic sessions
- 10,466 increase in total site traffic
- 136 asset downloads in 2022
- 10K sessions from eBooks in a year
SEO, Content Marketing, Email MarketingSaaS11-50 EmployeesN/ADublin, IrelandN/A- 20% increase in organic site traffic
- 50% increase in organic blog sessions
- 7% increase in conversions
- 19 Page 1 ranking keywords
Web Design, Content Marketing, Email MarketingSaaS51-200 EmployeesN/ADublin, OHN/A- 2x-3x increase in email open rates
- 3x-20x increase in email engagement rates
Content Marketing, SEO, Email MarketingSaaS51-200 EmployeesN/ANew York, NYN/A- +6,207% Increase in Keyword Rankings
- 28% Increase in Domain Authority
Content Marketing, Lead Generation, Email MarketingSaaS51-200 EmployeesN/AOslo, NorwayN/A- 105 marketing qualified leads generated
- 530 CFOs surveyed
- 37% open rate
- 4 speaking opportunities secured
Email Marketing, Lead GenerationSaaS51-200 EmployeesN/ASeattle, WAN/A- 100% install-to-lead conversion with zero lead leakage
- ~2,000 installs a month now enter HubSpot with accurate routing
- 100% of customer success handoffs tracked via pipeline
- 40+ HubSpot properties added in 6 months
SEO, Email MarketingSaaS11-50 EmployeesN/ASacramento, CAN/A- 416% increase in unique pageviews
- 56% increase in clicks
- 300% increase in conversions
Lead Generation, Email MarketingSaaS11-50 EmployeesN/ASøborg, DenmarkN/A- 244 high-quality leads at a cost of €161 per lead
Lead Generation, Email MarketingSaaS11-50 EmployeesN/AOslo, NorwayN/A- 625 high-quality leads delivered
Lead Generation, Email MarketingSaaSN/AN/AN/AN/A- 159.25% year-over-year increase in revenue through automated workflows
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