9 Best B2B Marketing Automation Platforms in 2026, Compared

HubSpot Marketing Hub is the default pick for a B2B team that wants one system instead of five. The free CRM sits underneath everything, so contacts, deals and campaigns share one record, and Starter adds email automation, lead scoring, landing pages and live chat for $20 a seat. The free plan covers two users and 1,000 contacts — enough to run campaigns before paying.

The catch is the price curve. Starter is cheap for one seat, but every extra seat adds $20 a month and contact add-ons cost $50 per 1,000 contacts a month, so the bill grows with the team and the list. Professional jumps to $890 a month with a $3,000 onboarding fee — a cliff, not a step. Buy HubSpot when you want CRM and automation in one place; buy ActiveCampaign when the budget is the constraint.

ActiveCampaign gives a small B2B team the deepest automation for the least money. The visual builder supports conditional branches, site tracking and lead scoring from the entry plan, and the built-in CRM means marketing and sales work from the same contact record instead of syncing two systems. At $15 a month billed annually for 1,000 contacts, it undercuts every other serious automation tool here.

The limits are in the fine print. Starter allows only five actions per automation and one user, so a team that builds long nurture sequences or shares the account will need Plus at $49 a month. Prices also rise with the list: Starter costs $149 a month at 10,000 contacts. Even so, for a team that lives in email nurture and wants real automation on a small budget, nothing else here matches it.

Account Engagement — the product most teams still call Pardot — is the automation layer for Salesforce, and that is the reason to buy it. Leads, contacts and campaign engagement sync natively into Sales Cloud, so sales sees every email open and form fill on the contact record without middleware. Growth+ includes lead scoring and grading, Engagement Studio nurture programs and 10,000 contacts for $1,250 a month per organization.

The price is the start. Account Engagement requires Salesforce Enterprise or Unlimited Edition, so the bill includes a Sales Cloud subscription, and Growth+ caps at 50 forms, 50 landing pages and 50 automation rules. Teams that outgrow those caps move to Plus+ at $2,750 a month. If Salesforce is your CRM, this is the obvious pick; if it is not, the cheaper tools here will do the same job for less.

Marketo Engage is the tool enterprise B2B teams graduate to when their database and their campaigns outgrow everything else. Its lead scoring, segmentation and engagement programs are the deepest in this list, and it handles multi-channel demand generation — email, webinars, events and account-based marketing — from one system. Native two-way sync with Salesforce and Microsoft Dynamics keeps marketing and sales on the same data.

Everything about Marketo is enterprise-shaped, including the buying process. Adobe publishes no price, offers no free trial, and G2 reviewers report implementation commonly taking around three months. The interface feels dated next to HubSpot or ActiveCampaign, and new users face a steep learning curve. Choose Marketo when your team runs complex, large-scale B2B programs and has the staff to run it; smaller teams will get more done faster elsewhere.

Brevo earns its place as the budget pick by charging for what you send, not who you store. Starter costs $9 a month for 5,000 emails, and the free plan sends 300 emails a day with no credit card required. The same account holds email, SMS, WhatsApp and a free CRM, so a team can run campaigns and keep contact records in one place without a second subscription.

Two limits matter. First, the send cap: emailing a 2,000-person list twice a week uses 16,000 sends a month, pushing you up the volume tiers fast. Second, the automation itself — workflows and A/B testing — starts on Standard at $18 a month, so the $9 plan is email plus CRM, not automation. Pick Brevo when the budget is tight and the list is small; pick ActiveCampaign when workflows are the job.

GetResponse is the all-in-one pick for a small team that wants automation plus the channels around it. The Marketer plan bundles unlimited automation workflows with built-in webinars, landing pages and sales funnels, so a team can run a lead-magnet webinar and the nurture sequence behind it without a second tool. Every paid plan includes unlimited monthly email sends, which removes the volume anxiety Brevo and Mailchimp create.

The entry plan is the trap. Starter costs $19 a month but allows only one custom automation workflow, so a team that needs a welcome series and a nurture sequence at the same time has to move to Marketer at $59 a month. Team permissions are also coarse, with no granular roles for junior staff. Buy GetResponse for the webinar and funnel bundle; buy ActiveCampaign if pure automation depth matters more.

Act-On is built for mid-market B2B teams that email a fraction of a large database. Its active-contact pricing means you pay for the contacts you actually email each month, not the whole list sitting in your CRM — a real saving for teams with 50,000 contacts and 5,000 monthly sends. The platform pairs that with native two-way sync to Salesforce, Microsoft Dynamics, NetSuite and SugarCRM, plus AI lead scoring and webinar integrations.

The floor is high: Professional starts at $900 a month for 2,500 active contacts, with no free plan and no free trial, and annual contracts renew automatically. Advanced reporting takes time to learn, and the interface is less polished than HubSpot's. Act-On fits a mid-market team with a big database and a CRM it already trusts; smaller teams will find the same automation cheaper at ActiveCampaign or GetResponse.

Mailchimp is the easiest way into marketing automation, and the fastest to set up. Most teams go live in under a month, many in under a day, and the free plan covers 250 contacts with 500 emails a month. Customer Journeys — Mailchimp's automation flows — run on every paid plan, and 300+ integrations cover Shopify, WordPress and Zapier, so it slots into a stack a small business already has.

The limits show up as you grow. Essentials caps automation flows at four steps, so a real multi-email journey needs Standard at $20 a month, and prices rise steeply with contact count — the same plan costs far more at 10,000 contacts. Mailchimp is the right pick for a small business that wants simple automation without a learning curve; teams that need deep branching logic should look at ActiveCampaign instead.

Oracle Eloqua is the enterprise heavyweight in this list, built for B2B teams with large databases and long sales cycles. Campaign Canvas orchestrates multi-step, multi-channel campaigns with deep segmentation, and its lead scoring and account-based marketing are designed for organizations that measure pipeline, not opens. Native integrations with Salesforce and Oracle's CX suite keep it inside an enterprise stack.

It is also the hardest tool here to buy and to learn. Oracle publishes no price and offers no free trial, implementation commonly takes one to three months, and it carries the lowest G2 rating in this list at 3.9 out of 5, with reviewers citing a dated interface and a steep learning curve. Choose Eloqua when your database and your campaign complexity genuinely need it; most teams will ship faster on HubSpot or Marketo.