Prospects today don’t stick to one inbox. They check emails, scroll LinkedIn, skim texts, and reply on WhatsApp. For agencies, relying on a single outreach channel limits visibility and slows down lead generation. Multichannel outreach tools help your team connect across touchpoints, stay consistent, and get better results with less manual work.

Recent benchmarks show that agencies using multichannel strategies see up to 3-5 times more booked meetings without increasing team size. Lead quality improves by over 10%, and prospects are more likely to respond when your message shows up in multiple places. It’s not just about volume, it’s about showing up where your leads are already active.

This blog breaks down the best multichannel outreach tools for agencies in 2025. You’ll find which channels each tool supports, the best use case for each, key features, and pricing all designed to help you choose the right fit for your agency’s workflow.

Why Multichannel Outreach Works Better Than Single-Channel

Modern buyers are active across multiple platforms and not just email. They engage on LinkedIn, check messages on SMS, and browse social feeds throughout the day. Limiting outreach to a single channel reduces your visibility and significantly lowers the chances of starting meaningful conversations.

Multichannel outreach delivers stronger results. Businesses using it see up to 287% more engagement than single-channel campaigns. It also improves appointment rates by 10–50%, giving your team more chances to connect without increasing headcount. And with 71% of buyers expecting brands to contact them on their preferred channel, limiting your reach isn’t just inefficient, it's outdated.

For your agency, this approach means:

• Less risk of being ignored due to inbox fatigue
• More coverage across where your leads actually engage (email, LinkedIn, SMS)
• Better data to refine what’s working and what isn’t
• A flexible system that adapts as buyer behavior shifts

Best Outreach Tools for Agencies

1.Stamina

Stamina is a multichannel outreach platform built specifically for agencies.We combine sales engagement, CRM, and hiring workflows into one integrated system designed to help teams scale outreach without losing control or visibility.

With Stamina, you can run personalized email and LinkedIn campaigns, track replies across multiple inboxes, and manage every prospect or candidate in one place. We automate repetitive tasks like follow-ups and inbox management while giving you real-time insights to optimize outreach and performance.

Stamina stands out for its agency-first approach. Unlike generic outreach tools, we support both client acquisition and talent hiring, streamlining communication across the full sales and hiring funnel. With features like inbox rotation, unified reply tracking (Unibox), and campaign-level reporting, we offer a system that’s built for speed, control, and long-term growth.

Supported Channels

Stamina combines email and LinkedIn outreach and hiring workflows in one platform. Agencies can automate multi-inbox campaigns, track prospect activity, and engage candidates or leads-all without switching tools.

• Email (multi-inbox support)
• LinkedIn (engagement automation)
• Hiring marketplace (for talent outreach)

Best Use Case

Stamina is ideal for agencies that want to unify sales outreach, hiring, and CRM workflows in one place. It’s built for teams running multichannel campaigns across email and LinkedIn, with a need for seamless reply tracking and performance visibility. 

Perfect for agencies looking to boost lead quality, increase response rates, and save hours by replacing scattered tools with one integrated platform.

Pros

• AI-driven personalization and smart follow-ups improve reply rates
• Centralized inbox (Unibox) for managing replies across email and LinkedIn
• Real-time analytics and A/B testing for performance optimization
• Flexible pricing for solo founders and growing teams

Cons

• May take a few sessions to get familiar with all features
• Best suited for agencies

Pricing

Stamina offers three flexible plans:

• Agency Core: 5,000 credits, up to 10 inboxes, CRM & marketing integrations.
• Agency Pro: 10,000 credits, up to 25 inboxes, advanced analytics, custom team permissions.
• Agency Enterprise: 50,000 credits, unlimited inboxes, dedicated account manager, custom onboarding.
  

Annual plans include a 15% discount.

2.Smartlead

Smartlead is an AI-powered cold outreach platform built for teams that need scale, speed, and deliverability. It’s widely used by agencies, SDR teams, and outbound marketers running high-volume email campaigns.

The platform automates inbox rotation, smart sequencing, and reply detection helping teams send thousands of emails daily without hitting spam folders. It also supports unlimited inboxes, allowing for broader reach and better sender reputation.

What makes Smartlead stand out is its focus on cold email at scale. From warm-up to follow-ups, everything is handled in one place, giving users more control over deliverability and performance.

Supported Channels

Smartlead supports multichannel outreach with built-in automation across:

• Email (with unlimited inboxes and warm-up)
• LinkedIn (via third-party integrations or custom workflows)
• Webhooks for connecting with SMS or CRM tools
• Native integrations with CRMs and enrichment platforms

Best Use Case

Smartlead is best suited for agencies and sales teams running high-volume cold email campaigns across multiple inboxes. It’s especially useful for teams focused on outbound lead generation who need strong deliverability, automated follow-ups, and reply management without juggling multiple tools.

Key Integrations

Smartlead connects with tools like HubSpot, Pipedrive, Salesforce, Google Sheets, and Zapier. These integrations help automate outreach and sync lead data across your sales stack.

Pros

• Scales cold email with inbox rotation and warm-up
• Simple UI for high-volume outreach management
• Affordable plans with generous email limits
  
  

Cons

• Limited multichannel support without external tools
• No built-in LinkedIn or SMS features
• Best suited for email-first teams only

Pricing

Plans start at $39/month with options to scale up to millions of leads and emails. All plans include inbox warm-up, rotation, and AI-powered outreach. Custom plans are available for high-volume teams.

3. Apollo

Apollo is a full-stack outbound platform that combines lead sourcing, enrichment, and multichannel outreach in one tool. It’s widely used by sales teams and agencies looking to streamline their outbound efforts from prospecting to closing.

The platform gives users access to a large B2B contact database, along with tools to automate emails, calls, and LinkedIn outreach. It also includes lead scoring, real-time tracking, and workflow automation making it easier to scale personalized outreach.

Apollo stands out for its balance of data depth and outreach capabilities. Instead of switching between prospecting and outreach tools, teams can manage everything in one system with detailed analytics and CRM syncing.

Supported Channels

Apollo supports multichannel outreach across:

• Email
• Phone (calls & SMS)
• In-app dialer and meeting scheduler
• Custom workflows via Zapier & native integrations

Best Use Case

Apollo is ideal for agencies and sales teams that want one tool for prospecting, enrichment, and outreach. It’s best suited for outbound teams that want to build accurate lead lists and launch email, call, and LinkedIn sequences from the same dashboard.

Key Integrations

Apollo integrates with tools like Salesforce, HubSpot, Outreach  and Zapier. These connections help sync lead data, automate workflows, and simplify CRM handoff.

Pros

• Combines data, enrichment, and outreach in one tool
• Large, accurate B2B contact database
• Supports multichannel workflows from a single dashboard

Cons

• UI can feel complex for new users
• Some advanced features locked behind higher tiers
• LinkedIn automation requires Chrome extension setup

Pricing

Plans start at $49/month with access to Apollo’s B2B database, email automation, and 5,000 lead exports per year. Higher tiers unlock advanced automation, A/B testing, and multiple mailboxes.

4. Reply.io

Reply.io is a multichannel sales engagement platform that helps teams automate outreach across email, LinkedIn, calls, and SMS. It’s built for sales reps, SDR teams, and agencies looking to scale outbound while keeping outreach personal.

The platform supports sequence building, AI-powered email writing, and detailed tracking making it easy to manage follow-ups and engagement across channels. It also includes tools for inbox warm-up, reporting, and lead assignment.

Its multichannel automation and user-friendly interfaces are the main features . From prospecting to pipeline, it helps teams create personalized campaigns that drive real conversations.

Supported Channels

Reply.io supports:

• Email
• Phone (calls + SMS)
• WhatsApp (via API)
• Custom integrations via Zapier and webhooks

Best Use Case

Best for sales and agency teams that want to automate personalized multichannel sequences email, LinkedIn, SMS, and calls while keeping visibility and control in one dashboard.

Key Integrations

Reply.io integrates with HubSpot, Salesforce, Pipedrive, Zoho CRM, Slack, LinkedIn, and Zapier. These integrations support smooth data sync and real-time outreach updates.

Pros

• Strong multichannel outreach capabilities
• Easy-to-use visual sequence builder
• Built-in AI tools for messaging and optimization

Cons

• Pricing adds up quickly for full features
• LinkedIn automation has setup steps
• Email limits depend on your connected inbox

Pricing

Plans start at $59/month for basic email outreach. Multichannel and advanced automation features are available from $99/month. Custom pricing available for teams. Free trial included.

5. Instantly

Instantly is a cold email outreach platform designed for high-volume sending with a focus on speed, deliverability, and simplicity. It’s built for lead gen agencies, growth marketers, and SDR teams who want to scale outreach across multiple inboxes.

The platform includes unlimited email account support, automated warm-up, lead database access, and smart campaign sequencing. It’s optimized for deliverability, helping users avoid spam folders while managing replies at scale.

The scalability and ease of use is top notch. It’s a solid pick for teams that prioritize cold email performance and want to move fast without technical setup.

Supported Channels

 Instantly supports:

• Email (with inbox rotation and warm-up)
• Native integrations for CRM syncing
• Zapier & Webhooks for broader workflows

Best Use Case

Best for agencies and SDR teams running large-scale cold email campaigns that need high deliverability, reply management, and performance tracking all with minimal setup.

Key Integrations

Integrates with HubSpot, Salesforce, Google Sheets, and Zapier. These integrations help streamline lead data flow and automate follow-up actions.

Pros

• Scales cold outreach with inbox rotation and unlimited sending
• Built-in warm-up and deliverability optimization
• Clean UI and fast setup with no technical overhead

Cons

• No native support for SMS or voice
• Multichannel features require external tools
• Mostly focused on email-first workflows

Pricing

Plans start at $37/month for unlimited email sending. Higher tiers offer access to lead databases, AI warm-up, and smart campaign features. No contracts; cancel anytime.

6. Saleshandy

Saleshandy is an email outreach platform designed for teams that need reliable cold email delivery, smart sequencing, and analytics all in a simple interface. It's popular with agencies, SDRs, and consultants looking to scale outreach while maintaining personalization.

The platform supports multi-stage email sequences, inbox warm-up, reply detection, and performance tracking. It also offers lead scoring and auto-pause on reply to keep campaigns relevant and timely.

Saleshandy stands out for its deliverability-first features and affordability. It’s a great choice for teams focused primarily on email who want to avoid spam folders and manage multiple campaigns efficiently.

Supported Channels

Saleshandy supports:

• Email (with smart sequencing and auto follow-ups)
• Gmail & Outlook integrations
• Zapier for external channel support and CRM sync

Best Use Case

Best for agencies and reps focused on cold email outreach at scale. It’s ideal for teams that want automated follow-ups, inbox warm-up, and performance insights without needing complex setup.

Key Integrations

Saleshandy integrates with Gmail, Outlook, HubSpot, Salesforce (via Zapier), and Google Sheets. These help sync contacts, track performance, and manage leads easily.

Pros

• Simple and affordable cold email tool
• Auto-pause, reply detection, and lead scoring included
• Easy setup with good analytics

Cons

• Limited to email as primary channel
• No built-in LinkedIn or SMS
• Multichannel automation needs Zapier

Pricing

Plans start at $36/month with unlimited email sending, inbox warm-up, and follow-ups. Higher plans include team features, lead scoring, and advanced analytics. 7-day free trial available.

7. Lemlist

Lemlist is a cold outreach platform built for teams that want to stand out in the inbox with personalization and visual content. It’s popular with agencies, SDR teams, and growth marketers who value creative email campaigns and strong deliverability.

The platform supports multichannel sequences, including email, LinkedIn, and calls. Lemlist is known for its personalized images, custom videos, and dynamic text, all designed to improve reply rates and engagement.

Lemlist stands out for making outreach feel more human at scale. Its deliverability tools, campaign builder, and personalization features help teams send better emails that get noticed.

Supported Channels

Lemlist supports:

• Email
• Phone (calls)
• Zapier for third-party integrations

Best Use Case

Best for agencies and sales teams looking to run personalized, multichannel campaigns that feel authentic and tailored. Ideal when standing out and getting replies is the top goal.

Key Integrations

Lemlist integrates with HubSpot, Salesforce, Pipedrive, Google Sheets, Slack, and Zapier. These help manage contacts, sync data, and streamline campaign performance.

Pros

• Personalization with images, video, and dynamic text
• Multichannel support for email + LinkedIn + calls
• Deliverability tools included (Lemwarm, bounce detection)

Cons

• UI can feel overwhelming at first
• LinkedIn steps aren’t fully automated
• Higher pricing compared to simpler tools

Pricing

Plans start at $59/month per seat for email outreach. Multichannel and advanced features start at $99/month. Includes Lemwarm, A/B testing, and personalization options.

8. Close

Close is a CRM and sales engagement platform built for inside sales teams that want to run multichannel outreach and manage their pipeline in one place. It’s used by agencies, startups, and sales teams looking to speed up the sales process with fewer tools.

The platform includes built-in calling, SMS, email automation, and pipeline tracking all from a single dashboard. It’s designed to reduce manual work, automate follow-ups, and help reps stay focused on conversations that convert.

Close stands out for combining CRM, outreach, and calling features in one tool ideal for teams that want control, speed, and visibility without switching platforms.

Supported Channels

Close supports:

• Email (with automation and templates)
• Phone (in-app calling and call tracking)
• Task reminders and custom workflows

Best Use Case

Best for agencies and sales teams that want CRM and outreach in one place. Especially useful for high-touch outbound where reps are managing emails, calls, and follow-ups together.

Key Integrations

Close integrates with tools like HubSpot, Slack, Zoom, Zapier, Google Workspace, and more. These integrations help teams sync data, manage meetings, and trigger outreach actions automatically.

Pros

• Combines CRM and multichannel outreach in one tool
• Built-in calling, SMS, and email automation
• Strong reporting and pipeline visibility

Cons

• May be more than needed for email-only workflows
• Some features locked behind higher plans
• Limited native LinkedIn integration

Pricing

Plans start at $99/month per user. Higher plans include power dialer, advanced reporting, and predictive dialing. All plans include calling, SMS, and email features with built-in CRM.

9. Snov.io

Snov.io is a lead generation and outreach platform designed for sales teams and agencies that want to find, verify, and contact leads from one place. It’s known for its all-in-one approach combining email finding, enrichment, and cold outreach into a single workflow.

The platform supports email sequences, lead scoring, and real-time tracking. It also offers tools for domain search, drip campaigns, and pipeline management, making it a great fit for outbound-focused teams.

Snov.io stands out for its balance between prospecting and outreach. It’s especially useful for small teams that want to keep their stack simple and skip juggling multiple tools.

Supported Channels

Snov.io supports:

• Email (drip campaigns + automated follow-ups)
• LinkedIn (via Chrome extension/manual steps)
• Zapier and Webhooks for additional workflows

Best Use Case

Best for small to mid-sized teams that want an affordable, all-in-one tool to find, verify, and email leads without switching platforms.

Key Integrations

• HubSpot
• Pipedrive
• Zapier

These integrations help sync contacts, manage pipelines, and automate outreach tasks.

Pros

• Combines lead sourcing, verification, and outreach
• Simple UI and built-in CRM
• Budget-friendly with strong feature set

Cons

• Limited multichannel support without add-ons
• LinkedIn automation is manual
• Fewer native integrations than some competitors

Pricing

Plans start at $39/month with access to lead generation, email campaigns, and tracking. Higher tiers unlock more credits, team features, and advanced workflows.

10. Woodpecker

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Woodpecker is an email outreach and follow-up automation tool built for agencies, sales teams, and B2B companies focused on cold outreach. It’s known for its deliverability-first approach and simple campaign builder that helps keep messages personal and effective.

The platform automates follow-ups, tracks replies, and supports multiple sending accounts. It also offers bounce detection, email warm-up, and A/B testing to improve campaign performance.

Woodpecker stands out for its strong focus on sender reputation and reply handling, making it a solid choice for teams that rely heavily on email for prospecting.

Supported Channels

Woodpecker supports:

• Email (with follow-ups and warm-up)
• LinkedIn (via manual tasks or external integrations)
• Zapier for CRM or SMS workflows

Best Use Case

Ideal for agencies and SDRs focused on cold email outreach with a need for strong deliverability, follow-up automation, and reply tracking.

Key Integrations

• HubSpot
• Pipedrive
• Zapier

These help with syncing contacts, automating tasks, and connecting to your CRM or other sales tools.

Pros

• High deliverability with email warm-up and bounce detection
• Simple automation for follow-ups and reply handling
• Built-in A/B testing and analytics

Cons

• Primarily email-focused
• Limited multichannel capabilities
• LinkedIn steps are not fully automated

Pricing

Plans start at $29/month per slot for basic cold outreach. Higher plans include more features like warm-up, integrations, and advanced reporting. 7-day free trial available.

Why Stamina Is Built for Multichannel and Team Workflows

Stamina gives agencies everything they need to run high-performing multichannel outreach without the mess of disconnected tools.Instead of switching between disconnected tools, your team can launch multichannel campaigns, track every reply, and manage the entire pipeline without losing context or momentum.

Unified Inbox + Sequence Automation

Handle all replies across email and LinkedIn in one place with Unibox. With automated follow-ups and AI personalization, your team can stay fast and personal even at scale.

Made for Agency Collaboration

Whether you're chasing new business or managing client pipelines, Stamina centralizes your outreach, CRM, and analytics so everyone’s on the same page. No more bouncing between platforms.

Built for Speed and Deliverability

With inbox rotation, real-time analytics, and deliverability tools, your emails land in the inbox, not spam. Everything’s built for teams that need results without technical hassle.

Final Word: Consolidate Your Stack and Reach More Clients

Choosing the right multichannel outreach tool isn’t just about features, it’s about helping your agency move faster, stay in control, and close more business. When your outreach, CRM, and reporting live in one place, your team spends less time switching tools and more time engaging the right leads.

Stamina  brings everything together, from email and LinkedIn to real-time reply tracking and campaign analytics and so nothing slips through the cracks. With built-in deliverability tools and unified workflows, your outreach stays efficient, personal, and scalable.

Ready to simplify your stack and grow faster? 

Explore Stamina and see how leading agencies are leveling up in 2025.. Book a demo

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