Best Apollo.io Alternatives for B2B Outbound (2026)

Apollo.io is the market leader for outbound prospecting platforms at the growth stage. It combines contact data, email sequencing, calling, analytics, and CRM integration in one tool — at a price point that makes it accessible to businesses that can’t justify Outreach or Salesloft. For most B2B businesses between £500k and £10M ARR running outbound, it’s the correct starting assumption in 2026.

But it’s not right for everyone. The data coverage has gaps in certain markets. The UX can be overwhelming. And there are specific use cases — heavily call-led outbound, LinkedIn-first prospecting, very large enterprise data requirements — where a different tool is meaningfully better.

This is an honest comparison of the main alternatives, who they’re suited for, and what the trade-offs actually are.

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Apollo.io: the baseline

Before the alternatives, what Apollo does well and where its gaps are.

Strengths: Comprehensive all-in-one platform (data, sequences, calls, CRM sync). Strong email sequencing with good deliverability controls when configured properly. Excellent UK and European B2B data for many industries. Generous contact data credits on most plans. Apollo’s search filters are extensive: job title, seniority, company size, industry, geography, tech stack, funding stage, and more.

Gaps: Data coverage for specific niches and geographies can be thin. Some industries — construction, professional services, certain B2B sectors outside tech — have lower contact find rates than others. The platform is feature-rich to the point of being complex; new users often get lost in settings that shouldn’t require much configuration. And the default setup is not optimised for deliverability — proper configuration is required before sending.

Best for: B2B businesses across most industries running email-led outbound. Particularly strong for SaaS, tech, professional services, and financial services targeting mid-market and enterprise accounts.

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Outreach

Outreach is the enterprise-grade sales engagement platform. It’s significantly more powerful than Apollo and significantly more expensive.

What it does better: Outreach’s sequence management is more sophisticated — better branching logic, more granular reporting, more control over personalisation at scale. Its revenue intelligence features (deal inspection, forecast accuracy) are genuinely enterprise-class. For large sales teams with complex multi-threaded outreach requirements, Outreach does things Apollo can’t.

What it doesn’t do: Outreach doesn’t provide contact data — you need separate data sources (Apollo data only, ZoomInfo, Cognism, or similar). It’s also a significantly larger administrative commitment: implementation takes months, not days, and requires dedicated RevOps support to manage effectively.

Price: Typically £100–£150 per user per month, plus implementation cost. At 10 users, that’s £12,000–£18,000 per year in licences before any implementation or admin overhead.

Best for: Sales teams of 20+ reps with complex outbound motions, multiple products and verticals, and dedicated RevOps support. Not appropriate for businesses under £10M ARR unless there’s a very specific use case.

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Salesloft

Salesloft is Outreach’s closest competitor at the enterprise end of the market. Similar feature set, similar price point, similar administrative requirements.

The meaningful differentiators between Outreach and Salesloft are largely around UI preferences and specific enterprise integrations. The choice between them at the large enterprise level often comes down to which one the sales team has used before, or which one integrates better with an existing Salesforce instance.

For B2B businesses in the growth phase, the same guidance as Outreach applies: too complex, too expensive, too much administrative overhead for the scale.

Best for: Same profile as Outreach. Not an Apollo alternative for most businesses in this guide’s target market.

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Instantly

Instantly is a cold email platform designed specifically for high-volume outbound with deliverability as the primary design constraint. It’s the tool of choice for outbound agencies and operators who send at very high volumes.

What it does better than Apollo: Instantly’s deliverability infrastructure is best-in-class. The warm-up tool is excellent. The sending infrastructure is designed for high-volume cold email in a way that Apollo’s (which is a multipurpose platform) isn’t. If your primary concern is email volume and inbox placement, Instantly is operationally better.

What it doesn’t do: No contact data — you need to source lists separately (Apollo data export, Clay, or other providers). No CRM integration as comprehensive as Apollo’s. Weaker analytics. Not designed for multi-channel sequences with call steps.

Price: Significantly cheaper than Apollo for pure email volume. Plans from around £30–£90/month for meaningful sending volumes.

Best for: Email-only outbound at volume. Outbound agencies managing multiple client campaigns. Businesses that have already separated data sourcing (via Clay or Apollo data) from execution and want the best pure-email platform.

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Lemlist

Lemlist competes with Apollo in the mid-market but has a different design philosophy. It’s known for multi-channel sequences with strong personalisation capabilities — particularly image and video personalisation.

What it does better: Lemlist’s multi-channel sequencing (email + LinkedIn + video) is more mature than Apollo’s. The image personalisation (embedding a prospect’s name or company logo into a custom image) is effective for high-response-rate outreach when used selectively. The UI is more approachable for teams new to outbound tooling.

What it doesn’t do: No built-in contact data — Lemlist is purely an execution tool. CRM integration is less comprehensive than Apollo’s. Deliverability controls are present but not as granular.

Price: Comparable to Apollo Professional, roughly £50–£80 per user per month.

Best for: Teams prioritising personalisation and multi-channel sequences over data volume. Businesses where the team is already sourcing contacts elsewhere and wants a cleaner execution tool.

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Cognism

Cognism is primarily a data provider rather than a sequencing platform — it competes with Apollo’s data, not its sequencing. But it’s worth including because many businesses use it as an Apollo replacement when they’ve decided the sequencing should live in HubSpot or another tool.

What it does better: Cognism’s European data coverage — particularly for UK and Germany — is generally better than Apollo’s for non-tech industries. GDPR compliance features are more mature. The diamond-verified phone number data is genuinely better quality than Apollo’s mobile data for UK markets.

What it doesn’t do: Cognism has a sequencing tool but it’s not the reason anyone buys it. It’s a data tool. If you want the sequencing capability, you’re pairing Cognism data with HubSpot sequences, Apollo sequences, or Outreach.

Price: Significantly more expensive than Apollo on a per-contact basis, particularly for phone data. Typically £15,000–£25,000 per year minimum commitment for UK market data.

Best for: Businesses that need high-quality UK phone data for call-led outbound, or that are in industries where Apollo’s data coverage is thin. Usually used alongside rather than instead of Apollo.

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The recommendation

For most B2B businesses at the growth stage doing email-led outbound: Apollo is the right starting point. The data is good enough for most use cases, the sequencing is capable when configured correctly, and the all-in-one model avoids the integration overhead of pairing separate tools.

The cases where you’d move off Apollo or choose differently:

• You need best-in-class UK phone data for call-led sales: look at Cognism alongside Apollo
• You’re sending very high email volumes and deliverability is the constraint: Instantly for execution, Clay + Apollo for data
• You have a 20+ rep sales team with complex multi-threaded requirements: Outreach or Salesloft
• You’re prioritising image/video personalisation: Lemlist

In all cases, the platform choice matters less than the configuration and the strategy. A well-configured Apollo account outperforms a poorly configured Outreach account. The tool is the mechanism — the ICP, the messaging, the process, and the infrastructure around deliverability are what determine whether outbound produces pipeline.

For more on what proper Apollo configuration looks like, the Apollo partner page and Apollo setup guide cover the implementation in detail. And for how Clay connects to whichever sequencing platform you choose, the Clay partner page covers the data layer.