Best Email Platform for Small Agencies

Overview

MailerLite Power is the best email marketing platform for agencies that need several people to work across client campaigns. It publishes unlimited user seats and a billed-monthly price at every list size in this guide, from $39 at 1,000 subscribers to $129 at 10,000. Kit is the runner-up: its Free tier reaches 10,000 subscribers at $0, but only Pro publishes unlimited users, so Free is effectively a single-user option for an agency.

Contact-based pricing makes one account carry several clients' lists at once. The starting price can look low until campaign staff, client access and the next contact band are included.

This guide compares Kit, GetResponse, MailerLite and Mailchimp using published contact prices, email marketing seats, free-tier limits and plan caps. The verified files do not state a client-sub-account figure for any of them, so this guide does not assume that structure exists.

See the Email Marketing for Agencies hub, Kit vs GetResponse for agencies and the best email tool for multiple client accounts. The short answer is MailerLite Power for collaborative work and Kit Free for a solo test.

How we chose

The comparison asks what an agency pays at 1,000, 2,500, 5,000 and 10,000 contacts, how many seats each plan includes and what happens when a vendor does not publish a number.

Every price was checked against the vendor's own pricing page on 10 October 2026. Annual-equivalent and promotional figures remain labelled as such. Currency stays in the verified form: MailerLite and Mailchimp are USD, while GetResponse served EUR. Where a figure is not stated, this article does not estimate it.

Kit

Best for a generous free list allowance Kit Free reaches 10,000 subscribers, but Pro is the only published unlimited-user tier

Kit suits a solo operator or an agency owner who controls sending. Its main advantage is Free at $0 for up to 10,000 subscribers, with unlimited landing pages and forms, unlimited email broadcasts, audience tagging and segmentation, and digital-product selling. That is a useful way to test whether one shared audience can support client work without starting a recurring bill.

The seat caveat is decisive. The verified notes say only Pro is published as including unlimited users, so lower tiers should be treated as effectively single-user. Creator costs $33 per month billed yearly, or $390 per year, for 1,000 subscribers and includes unlimited visual automations, unlimited sequences, A/B testing, removal of Kit branding, SMS marketing, integrations and 24/7 support. Pro costs $66 per month billed yearly for 1,000 subscribers, with a $50 monthly promotional figure also recorded. It adds subscriber signals, engagement analytics and deliverability reporting, plus unlimited users.

A solo operator with 8,000 subscribers on Kit Free pays $0 per month while remaining within the stated cap. A five-person agency that needs five logins should not present Free as a five-seat plan. At 1,000 subscribers, Kit Pro is the published unlimited-user route at $66 per month billed yearly. Kit does not publish Creator or Pro prices for 2,500, 5,000 or 10,000 subscribers in the verified material, and it does not state an additional-user price or client sub-account limit.

Kit lists a 14-day free trial, annual billing that saves 17% and a 30-day refund window. Choose Kit Free when one person can run the account, or Pro when unlimited users justify the published 1,000-subscriber price.

GetResponse

Best for a small team at 1,000 contacts GetResponse Starter includes 3 users, but larger requested prices are not stated

GetResponse suits an agency that wants a defined user allowance and an automation path. At 1,000 contacts, Starter costs €16 per month monthly or €13.12 billed yearly and includes 3 users, unlimited monthly sends, 1 automation workflow, landing pages and forms, AI tools limited to 3 uses and a free custom domain on yearly plans.

Marketer at 1,000 contacts costs €54 monthly or €44.28 billed yearly, with up to 5 users, unlimited automation workflows, sales funnels and abandoned cart recovery. Creator costs €62 monthly or €50.84 billed yearly, also with up to 5 users, and adds webinars for up to 100 attendees, a course builder up to 500 students and paid newsletters. Enterprise is custom pricing.

A three-person agency on Starter at 1,000 contacts pays €16 per month monthly, with the three listed users covering the team. A four- or five-person agency needs a plan that publishes up to 5 users, so Marketer is the relevant named scenario at €54 monthly. A sixth user cannot be assumed at the same rate. The checked page served EUR, while its FAQ separately quotes a US Starter price of $19 per month for 1,000 subscribers; this guide does not convert or merge those displays.

The key weakness is list-size visibility. The verified notes provide prices at 1,000 contacts but do not state figures for 2,500, 5,000 or 10,000, so the vendor does not publish those requested numbers. GetResponse also lists a 14-day free trial and an 18% annual-billing saving, but neither supplies a larger-list price.

MailerLite

Best for collaborative agency work MailerLite Power publishes unlimited seats and clear prices at all four requested sizes

MailerLite is the strongest all-round fit for an agency that needs several people in one workspace. Power includes unlimited user seats, unlimited monthly emails subject to fair use, unlimited automations, landing pages, signup forms and digital products or bookings. Its pricing page exposes all four requested list sizes.

Comfort includes 3 user seats, 50 automations, up to 10 websites and landing pages combined, 10 signup forms and 5 digital products or bookings. Its billed-monthly prices are $19 at 1,000 subscribers, $33 at 2,500, $49 at 5,000 and $89 at 10,000. Power is $39, $49, $69 and $129 at those same sizes. Annual-equivalent monthly prices for Power are $35.10, $44.10, $62.10 and $116.10, and the page states annual billing saves 10%.

Consider a five-person studio carrying 10,000 subscribers across clients. Power costs $129 per month billed monthly, and all five people fit within the published unlimited-seat allowance. Comfort costs $89 at that size but includes only 3 seats. Additional-user prices are not stated for either paid plan, so Power's explicit unlimited-seat entitlement is more useful than an invented surcharge.

Free costs $0 for up to 250 subscribers, 2,500 monthly emails and 2 user seats, so it is not available at any table size. MailerLite says exceeding a paid subscriber tier moves the account up and charges it, while exceeding Comfort's sending limit can trigger an upgrade. No numerical overage or additional-user price is stated.

Enterprise has unlimited seats but custom pricing for 200K+ subscribers, so its price at these smaller sizes is not stated. MailerLite also lists a 14-day premium-feature trial without a credit card and a 30% nonprofit discount. Power remains the clearest published answer for a normal small agency.

Mailchimp

Best for a familiar paid structure with unlimited Premium seats Mailchimp Premium is unlimited-seat, but its regular price is high

Mailchimp offers a clear seat ladder: Free has 1 seat, Essentials 3, Standard 5 and Premium unlimited. That makes Standard a possible five-person boundary, not an unlimited-access plan. Premium is the published choice for broad access, but its price is much higher at the list sizes in this guide.

Free costs $0 for up to 250 contacts, 500 sends per month and a 250-sends-per-day limit, so it is not available at any requested size. Essentials includes 3 seats and caps sending at 10 times the contact limit; Standard includes 5 seats and caps sending at 12 times the limit.

The regular calculator prices for Essentials at 1,000, 2,500, 5,000 and 10,000 contacts are $26.50, $45, $75 and $110. Standard is $45, $60, $100 and $135. Premium supports up to 200,000 contacts, includes unlimited seats, caps sending at 15 times the contact limit and costs $350 at each of those four sizes. The calculator also showed a 12-month "Save 50%" offer, including Essentials $13.25 and Standard $22.50 at 1,000, but those are not permanent monthly rates.

A five-person agency at 10,000 contacts fits Mailchimp Standard at $135 regular monthly, because 5 seats are included. A sixth person changes the decision: Standard no longer covers the published team size, while Premium is unlimited-seat at $350 monthly. Mailchimp does not state an additional-user price for Essentials or Standard, so no sixth-seat surcharge can be invented.

Mailchimp states that exceeding a contact or sending limit results in automatically billed overages, but no fixed amount is stated. Annual plans are available for Standard and Premium at 10,000 or more contacts, with eligibility and pricing through Sales. Choose Mailchimp when its seat ladder fits, not because Standard implies client sub-accounts.

Email platform pricing compared

The table uses verified billed-monthly or regular monthly figures. Kit and GetResponse publish paid prices only at 1,000. Mailchimp's regular figures are the calculator's "Then, starts at" prices.

Kit Free remains $0 through 10,000 subscribers because that is its published ceiling, but it is not confirmed as a multi-seat tier. GetResponse's larger figures are not stated. At 10,000, MailerLite Power is $129 with unlimited seats, Mailchimp Standard is $135 with 5 seats and Premium is $350 with unlimited seats.

The seat and billing traps

The first trap is treating subscriber capacity as team capacity. Kit Free can hold up to 10,000 subscribers but lower tiers are effectively single-user. MailerLite Comfort has 3 seats, GetResponse Starter has 3 users, Mailchimp Essentials has 3 seats and Mailchimp Standard has 5. Those caps can matter before a contact ceiling does.

The second trap is assuming a client list creates a client sub-account. None of the verified entries publishes a client-sub-account allowance. Before consolidating work, ask whether each client needs a login, whether permissions are included and whether separate audiences share one contact bill. This guide cannot claim those structures from the permitted sources.

The third trap is mixing billing labels. Kit Creator is $33 per month billed yearly and Pro is $66 billed yearly, with a separate $50 monthly promotional figure. GetResponse shows monthly and billed-yearly EUR amounts. MailerLite gives billed-monthly and annual-equivalent prices, while Mailchimp shows a 12-month offer beside regular monthly prices. Keep the billing basis beside every figure.

The fourth trap is using an unavailable tier after the team outgrows its seats. A five-person team fits Mailchimp Standard but not Essentials, and exceeds GetResponse Starter's 3 users. MailerLite Power includes unlimited users, while Comfort remains a 3-seat plan.

The fifth trap is overage billing. MailerLite says exceeding a paid subscriber tier automatically moves the account up and charges it; Mailchimp says contact or sending-limit overages are automatically billed but gives no fixed amount. Do not invent a surcharge, and do not assume excess usage is free. GetResponse's larger-list price is not stated, so its quote is part of the budget.

The sixth trap is adding client list sizes as if the table described separate allowances. If one account holds 1,000, 2,500 and 5,000 contacts, do not add three plan prices or assume a combined tier without the vendor stating how the account works.

Who should not buy this

Stay on Kit Free when one operator controls the account and the list stays within 10,000 subscribers. Stay on MailerLite Free when the list is no more than 250 subscribers, sending stays within 2,500 monthly emails and two seats are enough. At the four table sizes, MailerLite Free is unavailable.

Do not buy GetResponse yet when the budget depends on a known 2,500, 5,000 or 10,000-contact price. Those figures are not stated, so obtain a current quote. Do not buy Mailchimp Premium merely for access if five seats on Standard are sufficient: Premium is the unlimited-seat tier, but its regular price is $350 at each requested size.

Buy nothing if nobody owns list hygiene, consent records, campaign review and client approvals. A trial can test the workflow, but it does not answer an unpublished price or seat rule.

Our verdict: best email marketing platform for agencies

Choose MailerLite Power as the default best email marketing platform for agencies when several people need access to one client-service workspace. It publishes unlimited seats and exact billed-monthly prices of $39 at 1,000 subscribers, $49 at 2,500, $69 at 5,000 and $129 at 10,000. That combination makes the budget legible without inventing add-on seat costs.

Choose Kit Free as the runner-up for a solo operator or tightly controlled test under 10,000 subscribers. Its $0 ceiling is compelling, but lower tiers should be treated as effectively single-user. Move to Kit Pro when unlimited users and its reporting capabilities justify the published $66 per month billed-yearly price at 1,000 subscribers, and confirm higher-list pricing first.

Use Mailchimp when its seat ladder fits and the higher cost is acceptable. Use GetResponse when its 1,000-contact plan matches the immediate need, but do not budget larger lists until the vendor states those figures. The methodology explains why this guide leaves those gaps visible.

Frequently asked questions