10 Best Sales Engagement Platforms of 2026

Apollo is the most complete package for an outbound team that has to find prospects before it can sequence them. The free plan already includes contact and account data, 2 sequences, Gmail and Salesforce extensions and 150 minutes of call recording. Basic, at $49 per seat per month billed annually, lifts the sequence cap, adds the deliverability suite with email warmup, mailbox purchasing, CRM integrations, waterfall enrichment and a US dialer that draws on credits. Professional at $79 adds A/Z testing, AI lead scoring and 4,000 minutes of call recordings with AI insights. The catch is the credit model: data lookups and dialing both consume credits, so a team that calls and enriches heavily should model its usage before it signs. Organization needs at least three seats at $119, and the international dialer is a separate $119 per team add-on. For most small and midsize outbound teams, though, Apollo replaces two or three tools at a lower combined price.

Sales Hub makes the most sense when HubSpot is already your CRM. Outreach runs on the same contact and deal records your marketing and service teams use, so there is no sync to maintain and no second database to clean. HubSpot lists sales automation for multi-channel outreach that adapts to engagement, a power dialer with voicemail drops and CRM logging, sales extensions for Gmail and Outlook, and a Breeze Prospecting Agent that is still in beta. The free plan covers deal tracking, an AI assistant and meeting scheduling. Starter lists at $20 per seat per month, shown at $10 for new customers for a limited time, and Professional starts at $100 per seat with playbooks, AI forecasting and custom objects. That jump is the main issue: a team that grows into Professional pays five times the Starter list price per seat. Teams without HubSpot CRM will usually get more sequencing depth per dollar from Apollo or Reply.io.

lemlist began as a personalization tool for cold email and now covers most of an outbound stack. The Email plan, from $55 a month billed yearly, includes unlimited users and senders, 50,000 emails a month, an email and phone finder, a 650M+ lead database, the lemAgent AI agents, email warm-up and CRM integrations with an API. Multichannel, from $87 a month billed yearly, gives each user five senders and adds LinkedIn, SMS and WhatsApp automation plus a built-in dialer and power dialer. Personalization is the strength: Liquid syntax, custom text and images, conditional next steps and auto-stop rules. Lead enrichment and buying-intent signals are add-ons from $16 and $21 a month. Enterprise adds SSO, custom roles and a dedicated account manager. lemlist suits teams that send a lot of cold email and want it to look hand-written; larger teams with strict admin needs will find more governance in Outreach or Salesloft.

Mixmax is the lightest way to give a Gmail team real sequences. Steps can be emails, calls, tasks or LinkedIn touches, and the sequence keeps sending until someone replies. Every paid plan carries the full feature set: unlimited tracking of opens, clicks and replies, booking pages, AI meeting notes, AI Compose and Smart Send, templates and polls, a Sidechat for teammates inside Gmail, and CRM sync that logs each send and reply. Pricing is by recipients rather than by tier: 100 recipients a month costs $29 per user billed yearly, and 3,000 costs $129, with up to 15,000 available. A free plan covers 50 recipients a month. Custom branding and domains, workspace rules and a Salesforce insights package are $9 per member a month each. Mixmax does not carry a contact database, and its dialer is listed as an add-on, so phone-first SDR teams will want Klenty or Close instead.

Reply.io is built for sequences that move across channels. Its Multichannel plan, from $89 per user per month billed annually, puts email, LinkedIn automation, calls and SMS, semi-automated WhatsApp steps and Zapier steps into one sequence with unlimited active contacts and 10 mailboxes. The cheaper Email Volume plan starts at $49 per user with unlimited mailboxes and emails but caps active contacts at 1,000 a month; LinkedIn ($69) and calls with SMS ($29) are then bought per account. Both plans include email warmup, an anti-spam suite and 50 live data credits a month. The dialer handles call transcripts and AI-generated voicemails. Reply also sells Jason AI, an automated SDR that starts at $500 a month, for teams that want research and replies handled by software. The interface carries a lot of options, so expect some setup time. For a team that runs LinkedIn and phone steps next to email, the Multichannel bundle is fair value.

Klenty sits between the cold email tools and the enterprise suites, with more phone capability than most at its price. Starter, at $50 a month billed annually, covers unlimited users and mailboxes, 15,000 contacts and 75,000 emails a month, A/B testing, Liquid templates and an approve-before-sending step. Growth, at $70 per user, adds the multichannel side: a 1-click-to-call dialer with 200 minutes, number auto-rotation, AI voicemail and IVR detection, SMS automation, 2,000 data credits and bidirectional CRM field mapping. Plus, at $99 per user, adds account-based selling, AI call scorecards, battlecards and live transcription with 1,000 minutes. Phone-heavy teams can add power and parallel dialing for $45 per user, or Dynamic Presence local numbers for $50 per seat. The trade-off is that the two tiers with calling are sold through a demo, and the add-ons push a full SDR seat well past $150 a month.

Close is a CRM first, but for a small inside sales team it doubles as a sales engagement platform. Calling is built in, with automatic logging, voicemail drop, custom outcomes and call forwarding, and calls are charged at cost, about $0.02 a minute. Two-way SMS works in over a dozen countries. Automated workflows trigger email, SMS and call follow-up when leads meet set criteria, and they can assign leads and create tasks. The catch is the plan ladder: Solo costs $9 per user per month billed annually and Essentials $35, but workflows, bulk email and the power dialer start on Growth at $99. Scale, at $139, adds the predictive dialer and live call coaching. Every plan includes credits for Chloe, Close's AI teammate. A team that would otherwise pay for a CRM plus a sequencer can come out ahead, but a team keeping Salesforce or HubSpot should look elsewhere.

Instantly is the specialist for sending cold email at volume. Every plan includes unlimited email accounts and unlimited warmup, which is the main reason agencies use it: inboxes can be added without per-seat fees. The Outreach Growth plan costs $47 a month for 5,000 emails and 1,000 uploaded contacts. Lead data is sold as Instantly credits against a 450M+ B2B database, and bundles combine the two: Starter at $94 a month, Scale at $194 with 100,000 emails, 25,000 contacts, the AI Reply Agent and Unibox, and Agency at $555. The trade-off is scope. Instantly does not list calling or task steps, so it does not cover the full email, call and task cadence an SDR team usually needs. It works best next to a CRM or dialer, or for teams whose outbound is almost all email. At that job, it is easy to set up and cheap at the start.

Outreach is the platform large sales organizations tend to standardize on, and its feature list explains why. Sequencing covers multi-channel steps with meeting scheduling and tasks, reporting on engagement and revenue attribution, a mobile app and a Slack integration. Outreach Voice provides an integrated dialer, and conversation intelligence adds call insights, real-time transcription on higher packages and coaching tools. Above that sit account planning, deal and pipeline management and, on Amplify Pro, forecasting with scenario planning and territory management. AI agents for research, personalization, deals and meeting prep run on AI credits, from 50,000 on Amplify Plus to 100,000 on Amplify Pro. The cost side is opaque: Outreach publishes no prices and combines per-seat licenses with credit consumption, so budgets depend on negotiation and usage. For a 10-person team the setup effort and contract are hard to justify; for a few hundred reps it is a strong option.

Salesloft is the other enterprise standard, and its sequencing module, Cadence, is the part most outbound teams buy it for. Around it Salesloft lists Conversation Intelligence, Deals for opportunity management and Rhythm, which ranks the next actions a seller should take. Revenue leaders get Clari Forecast, Inspect for pipeline risk and Analytics, all on a shared data layer, and Salesloft says more than 4,000 customers use the platform. The login page also links Drift and Groove, which tells you the product family is still being consolidated after the Clari combination. Like Outreach, Salesloft publishes no prices, so a quote depends on seat count and modules. Teams choosing between the two should compare how each handles the channels they rely on and how much of the forecast stack they will use. For a small team that only needs email and call cadences, both are more platform than the job requires.