Independent comparison for enterprise buyers. Updated March 2026.
Quick verdict: Brevo is the stronger fit for small and mid-market teams that send high email and SMS volumes to modest contact lists and want pay-as-you-send economics with a built-in light CRM. Constant Contact is the stronger choice for small businesses, nonprofits, and event-driven organisations that prioritise guided onboarding, responsive support, and ease of use over channel breadth. The key differentiator is the billing model: Brevo charges primarily by send volume, while Constant Contact charges by stored contacts.
| Criteria | Brevo | Constant Contact |
|---|---|---|
| Editorial score | 4.3 / 5.0 | 4.3 / 5.0 |
| Deployment | Multi-tenant SaaS | Multi-tenant SaaS |
| Pricing Model | Volume-based (emails/month), light CRM included | Contact-based tiers; separate Lead Gen & CRM line |
| Target Buyer | SMB and mid-market with high send volume | Small business, nonprofits, event marketers |
| Implementation | Self-serve, days; APIs for transactional email | Self-serve, days; strong guided onboarding |
| Key strength | SMS, WhatsApp and transactional email in one tool | Onboarding, support, and event marketing |
| Key limitation | Shared-IP deliverability and reporting depth vary | Contact-based pricing rises sharply as lists grow |
| Best for | High-volume senders with small lists | Small teams that value support and simplicity |
Brevo, formerly Sendinblue and operated by Brevo SA of Paris, packages email campaigns, SMS, WhatsApp, transactional messaging, a visual automation builder, landing pages, and a light sales CRM into a single account. That breadth lets a small team run lifecycle and transactional messaging without bolting on separate tools. Constant Contact, headquartered in Waltham, Massachusetts, centres on email campaigns, list management, surveys, social posting, and event registration, with a separate Lead Gen and CRM product for pipeline features. For organisations whose primary need is straightforward newsletters and event invitations, Constant Contact covers the workflow with less configuration; for teams that need transactional email and multichannel automation under one roof, Brevo is the broader platform.
Brevo prices mainly on monthly email volume rather than list size. Published plans begin around 9 USD per month for the Starter tier and scale through Business plans into the higher tens of dollars as send limits rise, with an Enterprise tier (Brevo+) quoted case by case and reported to start near 10,000 USD per year. Constant Contact prices on stored contacts: the Lite email plan starts near 12 USD per month for up to 500 contacts and climbs as the contact count grows, while the Lead Gen and CRM line starts near 49 USD per month. The practical consequence is that Brevo tends to be cheaper for senders with small lists and high frequency, whereas Constant Contact can become costly once a contact database grows into the tens of thousands. Pricing verified June 2026. Enterprise pricing requires a quote.
Constant Contact is aimed squarely at small businesses, associations, and nonprofits that want to launch quickly with hand-holding. Its event-marketing and survey tools fit member organisations and local businesses. Brevo suits product-led startups and mid-market teams that send transactional and promotional traffic at volume and want SMS and WhatsApp alongside email. Neither targets the large-enterprise B2B demand-generation buyer served by platforms such as Eloqua or Pardot, so organisations needing advanced lead scoring and CRM-grade attribution will outgrow both.
Both tools are self-serve and can be live within days. Constant Contact is frequently rated highly for onboarding and phone support, a meaningful advantage for teams without a dedicated marketing operations function. Brevo offers documentation, APIs, and SMTP relay that suit developers integrating transactional email, but buyers on lower tiers report slower support response and more variable deliverability on shared sending infrastructure. Organisations sending high volumes on Brevo should budget for a dedicated IP and active list hygiene to protect inbox placement.
Buyers frequently note that Brevo offers strong value for teams that send frequently to smaller lists, and they single out the inclusion of SMS, WhatsApp, and transactional email in one subscription. Recurring criticism centres on deliverability variability on shared IP pools and reporting that is shallower than enterprise tools. Constant Contact reviewers consistently praise onboarding, telephone support, and the event and survey features, and many small-business and nonprofit users describe it as approachable for non-specialists. The most common complaint is cost escalation as contact lists grow, since billing is tied to stored contacts rather than sends, and several reviewers describe the automation features as less sophisticated than competing platforms. Both products draw praise for templates and ease of campaign creation, and both attract feedback that advanced segmentation requires workarounds.
Choose Brevo when send volume is high relative to list size, when SMS, WhatsApp, or transactional email matter, or when a single bill for messaging and a light CRM is preferable to stitching tools together. Choose Constant Contact when guided onboarding, dependable support, and event or survey marketing are priorities, particularly for nonprofits, associations, and local businesses without dedicated marketing operations staff. Teams expecting rapid contact-list growth should model Constant Contact costs carefully, while heavy senders should plan for a dedicated IP on Brevo.
Tell us what you're evaluating and we'll send a tailored shortlist of vendors that actually fit — no vendor funding, no pay-to-play.
6,000+ vendors · 893 comparisons · 48 country guides · Independent & vendor-neutral