Small-business guide
Best Email Automation Tools for Small Business
For most small businesses the best pick is MailerLite: its pricing page lists $19 a month at 1,000 subscribers and $49 at 5,000, and an owner with no marketing hire can run a welcome series on it in an afternoon. Brevo is cheaper for a big list that is mailed rarely, and ActiveCampaign is the step up when you need branching.
How a small business should choose
Small teams fail at automation by building more than they can maintain, not by picking the wrong logo. The right tool is the one an owner can edit on a Sunday evening, at a price that does not jump when the list passes a round number.
Test that with a shop of 1,000 contacts. MailerLite lists Comfort at $19 a month for 1,000 subscribers. Brevo lists Starter from $9 a month at 5,000 emails a month. Mailchimp stops its Free plan at 250 contacts and 500 sends a month, so a 1,000-person list outgrows it on day one. Compare your list size and monthly sends with those limits, then build a single welcome email that someone without specialist skills can edit, with a rule that stops it once the customer buys.
| Your situation | Start with | Why |
|---|---|---|
| No marketing hire, under 5,000 contacts | MailerLite | Among the mainstream choices, a low published price at 1,000 and 5,000 subscribers |
| Large list, one or two sends a month | Brevo | Billed by email volume, and the free plan stores up to 100,000 contacts |
| Leads, quotes and follow-up calls | ActiveCampaign or HubSpot | Branching and CRM context, at a clear price jump |
| Online shop | Omnisend or Klaviyo | Cart and purchase flows are the core product |
Shortlist by constraint
| # | Tool | Best for | Price as listed on 2026-10-07 |
|---|---|---|---|
| 1 | MailerLite | A small team that wants a welcome series and a monthly newsletter | Free up to 250 subscribers and 2,500 emails a month; Comfort $19 at 1,000 subscribers, $49 at 5,000, $89 at 10,000 |
| 2 | Brevo | A business that mails rarely but has a big contact list | Free: 300 emails a day and storage for up to 100,000 contacts; Starter from $9 a month at 5,000 emails, Standard from $18 |
| 3 | Mailchimp | Owners who want guided templates and a familiar editor | Free: 250 contacts and 500 sends a month; Standard $20 on the 500-contact selector, $100 at 2,501-5,000 contacts, $135 at 5,001-10,000 |
| 4 | ActiveCampaign | A growing team that needs branching and a light CRM | No free plan; Starter $15 a month at 1,000 contacts, $79 at 5,000, $149 at 10,000, billed annually |
| 5 | Kit | Solo experts, coaches and newsletter-led businesses | Free up to 10,000 subscribers (broadcasts only); Creator $33 at 1,000 subscribers, $75 at 5,000, $116 at 10,000, billed yearly |
| 6 | HubSpot | A small sales team that needs email tied to a CRM | Free marketing tools; Marketing Hub Starter $7 per seat a month, Professional $800 a month, Enterprise $3,600 a month |
| 7 | Omnisend | Small online shops using email and SMS | Free: 250 contacts and 500 emails a month; Standard $11.20 and Pro $41.30 a month as the promotional monthly prices listed |
| 8 | Klaviyo | Shops that want purchase-aware segments as they grow | Free up to 250 active profiles and 500 emails a month; email $30 at 1,000 profiles, $100 at 5,000, $150 at 10,000 |
| 9 | ConvertKit | Kit under its former name | Same plans as Kit: free up to 10,000 subscribers, Creator $33 at 1,000 and $75 at 5,000, billed yearly |
| 10 | Loops | Small software businesses sending product email | Free: unlimited contacts but 4,000 sends in any rolling 30 days to the 1,000 newest; paid $48 at 4,788 subscribers, $99 at 9,998 |
| 11 | Customer.io | Small software teams with event data from their app | Essentials $100 a month for 5k profiles, $145 for 10k, billed monthly, with 1 million emails a month included |
| 12 | Customerly | Small teams that want email and chat support together | Not priced here; see Customerly's own pricing page |
| 13 | Postmark | Receipts and booking confirmations that must arrive | Free: 100 emails a month; Basic, Pro and Platform $15, $16.50 and $18 at 10,000 emails, $55, $60.50 and $66 at 50,000 |
| 14 | SendGrid | A business with a developer who wants API sending and templates | Email API: 60-day trial at 100 emails a day, Essentials from $19.95 ($34.95 at 100,000 emails), Pro from $89.95 a month |
| 15 | Resend | A business whose developer wants simple API sending | Free: 3,000 emails a month; Pro $20 at 50,000 emails and $35 at 100,000; Scale $90 at 100,000 and $160 at 200,000 |
1. MailerLite: A small team that wants a welcome series and a monthly newsletter
MailerLite is the best pick for a small business because its pricing page makes the whole cost curve visible: $19 a month at 1,000 subscribers, $49 at 5,000 and $89 at 10,000, with a free plan for the first 250. The feature list includes email automation, landing pages and websites, and digital products, so a florist or physio can run signup forms, a welcome email and a monthly note without adding a second tool.
Trade-off: It is the simplest tool here, not the deepest. If you later need CRM deal stages or purchase-based branching, expect to move to ActiveCampaign or HubSpot. Prices and limits are from the MailerLite pricing page.
First automation: Build a signup form, a three-email welcome series and a monthly newsletter template, then stop adding automations until those work.
2. Brevo: A business that mails rarely but has a big contact list
Brevo bills by monthly email volume instead of by contact count, so a shop with 20,000 past customers that sends one newsletter a month pays for the sends, not the list. Its help centre says Starter begins at $9 a month for 5,000 emails and the free plan allows 300 a day. It also sends transactional mail, which covers order confirmations and appointment reminders.
Trade-off: The free plan limits marketing automation to 2,000 contacts, and automation, A/B testing and advanced reports are listed on Standard from $18. Weekly sends to a large list push you into higher volume tiers quickly. Prices and limits are from the Brevo pricing page.
First automation: Move appointment or order confirmations to Brevo's transactional stream, then add one promotional campaign a month.
3. Mailchimp: Owners who want guided templates and a familiar editor
Mailchimp is the tool many small-business owners have already seen, and its template gallery and guided builder lower the barrier for a first campaign. Its Free plan is 1 audience, up to 250 contacts and 500 sends a month with a 250-a-day cap, so a 1,000-person list outgrows it at once.
Trade-off: It is the priciest of the three mainstream choices as the list grows: $100 at 2,501 to 5,000 contacts, against $49 on MailerLite Comfort at 5,000. Pick it for familiarity, not for price. Prices and limits are from the Mailchimp pricing page.
First automation: Set up one welcome automation and one abandoned-signup reminder before paying for anything beyond Standard.
4. ActiveCampaign: A growing team that needs branching and a light CRM
ActiveCampaign suits the business that has moved past a simple newsletter: enquiry follow-up, quote reminders and re-booking nudges can each follow their own branch. Its pricing page lists Starter at $15 a month for 1,000 contacts and $79 for 5,000, billed annually.
Trade-off: Starter allows 1 user and 5 actions per automation, so a branching journey runs into the cap, and Plus starts at $49 a month at 1,000 contacts. Do not buy the power before you have the journeys to use it. Prices and limits are from the ActiveCampaign pricing page.
First automation: Automate enquiry follow-up first: confirmation, a reminder after three days, and a stop when the contact replies or books.
5. Kit: Solo experts, coaches and newsletter-led businesses
Kit fits a one-person business whose product is knowledge: a newsletter, a paid guide, a small course. Its Free plan covers landing pages, forms, broadcasts and tagging for up to 10,000 subscribers, and Creator at $33 a month for 1,000 subscribers adds unlimited Visual Automations and sequences.
Trade-off: Sequences start on Creator, so the free plan cannot run a welcome series. It is built for creators, so appointment or quote workflows will feel foreign. Prices and limits are from the Kit pricing page.
First automation: Tag subscribers by the lead magnet they chose and send each tag its own three-email sequence.
6. HubSpot: A small sales team that needs email tied to a CRM
HubSpot suits a small business with a sales process: leads, deals and follow-up email on one record. Its pricing page lists free marketing tools, Starter at $7 per seat a month, Professional at $800 and Enterprise at $3,600.
Trade-off: Automation is gated by tier: 1 automated action on the free tier, up to 10 on Starter and unlimited actions from Professional. A shop that wants a long nurture should price the $800 step before committing. Prices and limits are from the HubSpot pricing page.
First automation: Log leads from one form into the CRM and send a single follow-up email that stops when a deal is created.
7. Omnisend: Small online shops using email and SMS
Omnisend is built for small online stores, where abandoned-cart and post-purchase emails earn their keep. Its pricing page lists a free plan of 250 contacts and 500 emails a month, and says you are billed for subscribers and non-subscribers who received automated messages, while unsubscribed contacts are not billed.
Trade-off: It is less natural for a service business with no catalogue, and SMS is charged separately, starting at $0.007 per message on the pricing page. Prices and limits are from the Omnisend pricing page.
First automation: Turn on the abandoned-cart and welcome flows before designing any campaigns.
8. Klaviyo: Shops that want purchase-aware segments as they grow
Klaviyo suits a store whose email depends on what people bought: a replenishment reminder, a win-back after 90 days, a VIP segment. Its pricing page lists email at $30 a month for 1,000 profiles, $100 for 5,000 and $150 for 10,000.
Trade-off: That is roughly double MailerLite at 5,000, so it only pays off when purchase data actually drives your emails. Prices and limits are from the Klaviyo pricing page.
First automation: Connect the store, then build a post-purchase thank-you and a 60-day replenishment reminder.
9. ConvertKit: Kit under its former name
ConvertKit is the previous name of Kit, so this is the same product as the Kit entry above. Older guides and integration lists still say ConvertKit, which is why owners still search for it.
Trade-off: If a tutorial tells you to connect ConvertKit to your shop or booking tool, you are connecting Kit; there is no separate plan. Prices and limits are from the ConvertKit pricing page.
First automation: Follow the Kit entry: tag by lead magnet, then add a sequence per tag.
10. Loops: Small software businesses sending product email
Loops is for a small software business that wants signup, onboarding and product-update email in one narrow tool. Its pricing page lists no team seat fees and transactional sending on paid plans.
Trade-off: It is built for SaaS, so a bakery or a dental practice will find little that suits it. The free plan only sends to the 1,000 newest contacts. Prices and limits are from the Loops pricing page.
First automation: Send one welcome email on signup and one nudge if the customer has not completed setup within a week.
11. Customer.io: Small software teams with event data from their app
Customer.io makes sense when your app already records what customers do and you want email to follow those events. Essentials includes transactional email on every plan and 1 million emails a month.
Trade-off: It needs developer time to send events, and $100 a month at 5k profiles is twice MailerLite Comfort at 5,000 subscribers. Prices and limits are from the Customer.io pricing page.
First automation: Send one real event, such as account created, and build a welcome email triggered by it.
12. Customerly: Small teams that want email and chat support together
Customerly combines customer messaging with support conversations, which suits a small team that answers customers in chat and wants follow-up email to reflect those conversations.
Trade-off: Check seat and contact limits on its pricing page; we have no dated readout of its plans, so no price is quoted. Prices and limits are from the Customerly pricing page.
First automation: Send a post-chat follow-up and stop all promotions while a conversation is open.
13. Postmark: Receipts and booking confirmations that must arrive
Postmark sends the emails a customer is waiting for: receipts, booking confirmations and password resets. Its pricing page shows slider stops only, from $15 for 10,000 emails to $115 for 125,000 on Basic.
Trade-off: It is not a marketing tool, so pair it with MailerLite or Mailchimp for newsletters. The free plan covers only 100 emails a month. Prices and limits are from the Postmark pricing page.
First automation: Send order or booking confirmations through Postmark and check delivery events before moving anything else.
14. SendGrid: A business with a developer who wants API sending and templates
SendGrid suits a small business whose website or app sends mail through code. Twilio's Email API pricing starts Essentials at $19.95 a month, which covers up to 50,000 emails.
Trade-off: It delivers mail but does not manage campaigns, and its Marketing Campaigns product is priced separately with a free plan for up to 2,000 contacts and 6,000 emails a month. Prices and limits are from the SendGrid pricing page.
First automation: Send one templated confirmation and test bounce and unsubscribe handling.
15. Resend: A business whose developer wants simple API sending
Resend is a developer-first sender with a clean API and a Marketing tab for broadcasts, free at 1,000 contacts on its pricing page.
Trade-off: Retries, templates and unsubscribe handling stay with whoever writes the code, so it is a poor fit for an owner who works alone. Prices and limits are from the Resend pricing page.
First automation: Send one transactional email from your site and review the logs before adding broadcasts.
First-month automation plan
| Week | Build | Review |
|---|---|---|
| 1 | Write down how people consent to hear from you, then build a signup form and the welcome path | Signup completion and unsubscribes |
| 2 | Add one interest or behavior segment, such as customers versus enquiries | Clicks by segment |
| 3 | Connect the key conversion event, such as a booking or purchase, and make it stop the welcome series | Leads or purchases that followed an email |
| 4 | Read the unsubscribe and bounce counts before adding anything new | Whether the list is healthy enough to grow |
Read our automation guide, metrics guide, and deliverability guide.
What a small-business list costs at three sizes
Monthly list prices from each vendor's pricing page, read on 2026-10-07. Brevo, Postmark, SendGrid and Resend bill by email volume, and Customerly's plans are not priced here, so they are left out.
| Tool | 1,000 contacts | 5,000 contacts | 10,000 contacts |
|---|---|---|---|
| MailerLite Comfort | $19 | $49 | $89 |
| Mailchimp Standard | from $20 (500-contact selector) | $100 | $135 |
| Kit Creator (billed yearly) | $33 | $75 | $116 |
| ActiveCampaign Starter (billed annually) | from $15 | $79 | $149 |
| Klaviyo email | $30 | $100 | $150 |
| Loops | free (1,000 newest contacts) | $48 | $99 |
A florist with 5,000 customers on the list spends $588 a year on MailerLite and $1,200 on Mailchimp or Klaviyo. For a business sending one newsletter a month, that $612 difference pays for a lot of photography; it only pays back if branching or purchase data changes what you send.
What to leave out for the first 90 days
| Skip for now | Why a small team should wait | Build it when |
|---|---|---|
| Lead scoring | With under a few hundred leads, a score is guesswork you cannot test | You have a sales process with a repeatable win pattern |
| Five-branch journeys | Each branch needs its own copy, and nobody remembers what they do after a month | The two-branch version has been live for a quarter |
| SMS add-ons | Consent rules differ from email and cost is per message | Email reminders are working and a subset asks for texts |
| A second tool for transactional mail | Many small-business platforms can send their own confirmations | Confirmations are late or missing from inboxes |
Mistakes that hurt small-business lists
- Importing a spreadsheet of past customers who never agreed to marketing email
- Starting three automations in the same week, then not knowing which one caused the unsubscribes
- Choosing a tool on its template gallery when the real constraint is how many contacts you can hold before the price jumps
- Letting a welcome series keep running after the customer has bought
Related reading
- Email automation for small business for the audience overview
- Brevo vs Mailchimp if those two are your finalists
- Mailchimp alternatives if you have outgrown the free plan
Frequently asked questions
What is the best email automation tool for a small business?
MailerLite for most owners: its pricing page lists Comfort at $19 a month for 1,000 subscribers, $49 for 5,000 and $89 for 10,000, with a free plan for the first 250. Choose Brevo for a large list that is mailed rarely, and ActiveCampaign when you need branching.
Is there a free email automation plan that works for a small business?
Briefly. MailerLite Free covers 250 subscribers and 2,500 emails a month, Mailchimp Free 250 contacts and 500 sends, and Brevo Free allows 300 emails a day. Kit's free plan covers up to 10,000 subscribers but has no sequences.
How many automations does a small business need?
Three cover most of the value: a welcome series, a reminder tied to a booking or purchase, and a win-back for customers who have gone quiet. Add more only after those have run for a quarter.
Do I need a separate tool for order and booking confirmations?
Usually not. Many tools on this list can send their own confirmations; add Postmark, whose slider starts at $15 a month for 10,000 emails, only if confirmations arrive late or land in spam.