OpenServed

Best Email Marketing Agencies for Medium Business (2026) – Ranked by Case Studies

Social BloomVisit Website →
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)
Cannonball DigitalVisit Website →
Landscape Garden Center Client-verified
PPC, SEO, Email Marketing
Landscaping
51-200 Employees
N/A
Sioux Falls, SD
N/A
  • Google Map visibility +100% (average rank from #5 to #2)
  • 116 locally ranked keywords, 35 in the #1 position
  • Website sessions from Google Ads +57% year over year
  • Project request form submissions +23%
  • Brand searches +13% and overall search visibility +34%
Big SeaVisit Website →
Champions for Children Client-verified
Web Design, Email Marketing, PPC
Non Profit
51-200 Employees
N/A
Tampa, FL
N/A
  • 75% increase in online conversions
  • 145% increase in unique donors
  • 115% increase in revenue
  • 30% increase in donations from fundraisers
LOCALiQVisit Website →
Aubuchon Homes & Miloff Aubuchon Realty Client-verified
PPC, Social Media Ads, Email Marketing
Real Estate
51-200 Employees
N/A
Cape Coral, FL
N/A
  • 300% increase in social ad leads
  • 42% increase in average home sale price
  • 2,300+ clicks on social ads in 2 months
Sapper Consulting LLCVisit Website →
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
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
Home Care Marketing ProsVisit Website →
HomeChoice Home Care Client-verified
SEO, PPC, Email Marketing
Senior Care
51-200 Employees
N/A
Raleigh, NC
N/A
  • Conversion rate of roughly 35% held on rising lead volume
  • Search rankings held steady instead of sliding
scandiwebVisit Website →
Felco Client-verified
Email Marketing
Manufacturing
51-200 Employees
N/A
Les Geneveys-sur-Coffrane, Switzerland
N/A
  • Building a €150K/Month Lifecycle Revenue Engine in 5 Markets
  • Case study of building a lifecycle email and SMS engine, generating over 150k EUR monthly revenue within 30 days
Coalition TechnologiesVisit Website →
Beauty Plus Salon
Email Marketing, SMS Marketing
Beauty
51-200 Employees
N/A
Marlboro, NJ
N/A
  • 23% Increase in S Subscriber List
  • 37% Increase in SMS Subscribers
  • 33% Increase in SMS Conversions and Average Order Value
  • 27% Increase in First Year Email Revenue
  • 26% Increase in SMS Revenue
Spiceology
Email Marketing, Web Design, Web Development
Food & Beverage
51-200 Employees
N/A
Spokane, WA
N/A
  • 756,346 Users
  • 1,407,211 Users
  • 86% Increase in Users
  • 68% Increase in Number of Sessions
  • $1,326,318 in Revenue
Devil Mountain Wholesale Nursery
Email Marketing, Web Design, Web Development
Home & Garden
51-200 Employees
N/A
San Ramon, CA
N/A
  • 71% Increase in Open Rate
Intero DigitalVisit Website →
Updox
Web Design, Content Marketing, Email Marketing
SaaS
51-200 Employees
N/A
Dublin, OH
N/A
  • 2x-3x increase in email open rates
  • 3x-20x increase in email engagement rates
AMD Global Telemedicine
Content Marketing, Public Relations, Email Marketing
Healthcare
51-200 Employees
N/A
Chelmsford, MA
N/A
  • 639 site entrances
  • 763 page views
Occupier
Content Marketing, SEO, Email Marketing
SaaS
51-200 Employees
N/A
New York, NY
N/A
  • +6,207% Increase in Keyword Rankings
  • 28% Increase in Domain Authority
The Pedowitz GroupVisit Website →
Panasas
Lead Generation, Email Marketing
Technology
51-200 Employees
N/A
San Jose, CA
N/A
  • 17% increase in net new leads
  • 241 form fills
  • 200+ unique company leads
  • 20%+ increase in engagement
JobsOhio
Lead Generation, Email Marketing
Government
51-200 Employees
N/A
Columbus, OH
N/A
  • $1B+ in marketing-attributed revenue
  • 30%+ increase in inbound engagement
  • 25% campaign conversion
  • 33%+ increase in form submissions
Chronos AgencyVisit Website →
The Oodie
Email Marketing
Fashion
51-200 Employees
N/A
Adelaide, Australia
N/A
  • Email from 16% to 30% of store revenue in 90 days
  • 273% increase in flow placed order rate in 30 days
  • 44.13% submission rate on one sign-up form
Organifi
Email Marketing
Supplements
51-200 Employees
N/A
San Diego, CA
N/A
  • 234% increase in email revenue in 6 months
  • 8x increase in email campaign openers
  • 75% increase in flow conversion
MerkleVisit Website →
Annie Selke
Email Marketing, Personalization
Bedding
51-200 Employees
N/A
Pittsfield, MA
N/A
  • 200% increase to target customer reach
  • 16% open rate on emails to disengaged customers
Vantage Deluxe World Travel
Customer Data Platform, Email Marketing, Data & Analytics
Travel
51-200 Employees
N/A
Boston, MA
N/A
  • 75% of site visitors are now able to be identified
  • Data feed sent four times daily with 40+ data points
Hivehouse DigitalVisit Website →
HOH Water Technology
Content Marketing, Email Marketing, Lead Generation
Industrial
51-200 Employees
N/A
Palatine, IL
N/A
  • 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
Lee Media GroupVisit Website →
Salon Brands
Web Design, Email Marketing, Social Media Ads
Retail
51-200 Employees
N/A
Wichita, KS
N/A
  • 79% increase in sales
  • 30% ROI on social ads
  • 42,000 increase in pageviews
TripleDart DigitalVisit Website →
Swym
Email Marketing, Lead Generation
SaaS
51-200 Employees
N/A
Seattle, WA
N/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
Search BergVisit Website →
Nanda & Associate Lawyers
SEO, Content Marketing, Email Marketing
Law Firm
51-200 Employees
N/A
Mississauga, Canada
N/A
  • 122.4% increase in organic traffic (12,700+ per month)
  • 300% increase in conversions
  • 45,000+ new site users
Optimum7Visit Website →
BUDK.com
Email Marketing
Sporting Goods
51-200 Employees
N/A
Moultrie, GA
N/A
  • Email open rates recovered from 2-3% to 66.2%
  • July email revenue up 35% to $80,736
  • 14 of 15 lifecycle flows and all 11 transactional emails rebuilt in 30 days
Wisoft SolutionsVisit Website →
KTI-Plersch
SEO, Web Development, Email Marketing
Industrial
51-200 Employees
N/A
Balzheim, Germany
N/A
  • Email campaigns reached up to 75% open rate and 68% click rate
  • 15K+ organic LinkedIn impressions
  • 452+ unique organic page visitors
  • Under 1% unsubscribe rate
NP DigitalVisit Website →
Elk Springs Resort
Email Marketing
Hospitality
51-200 Employees
N/A
Gatlinburg, TN
N/A
  • 162% increase in campaign revenue
  • 100% increase in email recipients
  • 120.98% increase in deliverability
TinuitiVisit Website →
Wag!
Email Marketing, SMS Marketing
Pet Services
51-200 Employees
N/A
San Francisco, CA
N/A
  • +63% Pet Parent reactivation rate
  • +40% weekly active Pet Parents
  • +129% unique email opens YoY
  • +179% email deliveries increase
  • 9x growth in Pet Caregiver push notification deliveries
BraftonVisit Website →
33 Threads
Email Marketing, Branding
Fashion
51-200 Employees
N/A
San Diego, CA
N/A
  • 700+ marketing emails delivered across 4 brands
  • 24% increase in peak-season email revenue YoY
  • 210% increase in automated flow revenue
  • 33%+ of total revenue driven by email
  • 106% increase in campaign-attributed revenue (TAVI promo)
OuterBoxVisit Website →
Mount-It!
Email Marketing, SMS Marketing
Ecommerce
51-200 Employees
N/A
San Diego, CA
N/A
  • 141% increase in average monthly revenue
  • 77 additional monthly orders
  • $3.40 revenue per recipient
  • 3x increase in revenue from welcome series optimization
Power DigitalVisit Website →
Victrola
Affiliate Marketing, Amazon Marketing, Content Marketing, Email Marketing, SMS Marketing, PPC, Social Media Ads, SEO
Consumer Electronics
51-200 Employees
N/A
Denver, CO
N/A
  • 115% Rise in Revenue in a Single Year
  • 31K+ New Email Subscribers
  • 160% Increase in Web Sessions
  • 108% Rise in Customer Transactions
  • 11,000 Increase in Instagram Followers
Lounge LizardVisit Website →
Physicians’ Reciprocal Insurers Marketing
Content Marketing, Email Marketing, Influencer Marketing, SEO, Social Media Ads
Insurance
51-200 Employees
N/A
Roslyn, NY
N/A
  • +22% Organic Users
  • +576% Paid Users
  • +11% Direct Users
  • +434% Conversion Rate
  • +498% Conversions
WebFXVisit Website →
York Saw & Knife Co., Inc.
SEO, PPC, Email Marketing, Social Media Ads, Amazon Marketing
Manufacturing
51-200 Employees
N/A
York, PA
N/A
  • 2118% YOY INCREASE IN REVENUE FROM AMAZON ADS
  • 626% YOY INCREASE IN AMAZON SALES
  • 442% YOY INCREASE IN AMAZON UNITS ORDERED
  • 138% YOY INCREASE IN ORGANIC SESSIONS
  • 108% YOY INCREASE IN GOOGLE ADS CONVERSIONS
Outbound SystemVisit Website →
Squirro
Lead Generation, Email Marketing
SaaS
51-200 Employees
N/A
Zurich, Switzerland
N/A
  • 28 meetings booked in 7 months
  • 43 average replies per month
SEO BrandVisit Website →
Autism Specialty Group
SEO, Local SEO, Email Marketing
ABA Therapy
51-200 Employees
N/A
Miami, FL
N/A
  • 100%+ increase in organic traffic
  • 1,000+ followers gained on Instagram in under a year

Find the best Email Marketing agencies for your business size