The Best AI Powered Sales Assistant for B2B Revenue Teams

Time to power your pipeline with an AI sales assistant?

That’s a great idea, and here’s why:

It speeds up prospecting, personalises outreach at scale and delivers real-time insights so you can turn every conversation into revenue.

Unfortunately, not all AI tools are as great as the buzz surrounding them.

That’s why I’ve put together this comparison of the top AI powered assistants for B2B sales. Discover who wins 👇

TL;DR

• Cognism is the AI sales assistant winner for global B2B teams, delivering phone-verified, GDPR/CCPA-compliant data, unmatched EMEA coverage, and context-aware AI that drives faster revenue.
• ZoomInfo Copilot offers strong automation but costs add up.
• Clay AI is flexible for enrichment but lacks phone-verified data and requires heavy setup.
• Lavender excels at AI email coaching but can’t handle prospecting or enrichment.
• Dialpad is great for AI call transcription but not for generating net-new pipeline.
• Breeze Intelligence is niche for enrichment, with costs scaling steeply for large CRMs.
  

Bottom line:

For accurate, compliant, and action-ready sales data combined with real-time AI insights, Cognism’s Sales Companion outperforms its competitor.

The best-rated AI sales assistant tools

1. Cognism

The most reliable AI powered sales assistant for B2B

Cognism is built for modern revenue teams that demand accuracy, compliance, and speed. Its AI sales assistant combines verified B2B contact data, real-time buyer signals, and automated outreach sequences to deliver results you can trust.

Unlike ZoomInfo or Clay, Cognism doesn’t just hand you data; it gives you GDPR and CCPA-compliant, phone-verified leads enriched with the insights you need to start relevant conversations immediately.

AI features:

• Sales Companion for personalised access to in-depth account data to ensure fresh and fast outreach.
• Find prospects using ChatGPT-style textual or voice prompts with Cognism AI Search.
• Cortex AI company research to learn about your target account’s business model, strategy, competitors and revenue.

What customers say about Cognism AI:

“We've actually seen a drastic improvement in terms of the amount of dials that each SDR is making, the amount of conversations that they're having, and also the amounts of meetings that they're booking. We're seeing over 300% more dials than were being made on a weekly basis since using Sales Companion.”

Alex Porter
Global Sales & Business Development Director @Singlestore

Want to see Cognism in action? Check out an on-demand demo! Or chat to a rep 👇

2. ZoomInfo

A powerful tool, but comes with extra costs.

ZoomInfo is one of the most recognised names in sales intelligence, but how does its AI Copilot compare to the rest?

The ZoomInfo Copilot offers a custom feed for each user with real-time alerts on account, contact and intent changes. It also includes an email writer for tailored emails based on buying groups and personas. 

And, the ZoomInfo Copilot cost? 

It’s an additional per-seat charge to existing ZoomInfo licenses.

AI features:

•  AI-powered summaries of deal history, past meetings, and account data.
• Real-time signals.
• Personalised email creation.

Pricing:

ZoomInfo pricing must be requested from the website and follows individual pricing tiers for sales, marketing, and recruitment. Seats, credits, and supplementary tools, like ZoomInfo AI, also affect cost.

Sales Companion vs ZoomInfo AI Copilot: Side-by-side comparison

Learn more about Cognism vs ZoomInfo.

3. Clay

Flexible data enrichment, but not a full sales assistant.

Clay AI has gained popularity for its waterfall data enrichment, allowing teams to connect multiple tools and build custom prospecting sequences. However, the lack of phone-verified data and heavy configuration are drawbacks, especially as an AI sales assistant.

AI features:

• AI research agent.
• AI formula maker.

Pricing:

Clay AI has five pricing tiers: Free, Starter, Explorer, Pro and Enterprise. Packages are based on credits with unlimited user seats. 

Sales Companion vs Clay AI: Side-by-side comparison

Learn more about Clay vs Cognism.

4. Lavender

Great for email coaching, but not a full assistant.

Lavender specialises in AI-powered email writing feedback, helping reps craft more effective messages.

It’s a strong complementary tool, but can’t replace a full sales assistant platform like Cognism. You’ll still need separate tools for data sourcing, intent, and automation.

AI features:

• AI email writer.
• AI recommendations.

Pricing:

Lavender AI offers four plans: Basic, Starter, Individual Pro and Team.

Cognism AI vs Lavender:

Lavender excels at AI-driven email personalisation and coaching. But it’s not a complete sales assistant; you’ll still need a separate solution for prospecting, enrichment, and triggers.

Cognism is the best AI sales tool as it delivers all of these in one.

“Thanks to Cognism, we’ve saved an estimated 5-7 hours per week that were previously spent searching for the right contact information.”  “With Cognism, what used to be a time-consuming manual process is now instant with just a few clicks.”

Read the full case study

Helped generate

7-figure opportunities

Stevie Howlett
Director of Business Development @SUB1

5. Dialpad

Strong in AI calling, but lacks prospecting tools.

Dialpad’s AI excels in transcribing and analysing calls, making it a good fit for call-heavy sales teams.

However, without integrated prospecting and lead generation, it’s not a complete AI sales assistant solution.

AI features:

• AI call recaps.
• Instant AI call grading.
• Call coaching.

Pricing:

Dialpad offers three packages: Standard, Pro and Enterpise. 

Cognism AI vs Dialpad:

Dialpad’s AI is great for call transcription and coaching, but it doesn’t generate net-new pipeline.

Sales Companion helps drive conversations and ensures your team is talking to the right people at the right time.

6. Breeze Intelligence

Niche AI lead enrichment.

Breeze Intelligence is best suited for marketing and operations teams looking to enhance existing data and automate workflows.

This AI powered sales assitant focuses on AI-driven lead sourcing. Leveraging your CRM data to research companies, prep for sales calls, build pipeline and summarise CRM records for streamlined marketing and sales efforts.

Best features:

• Workflow automation.
• AI email writer.
• Target account research.
• Tailored outreach.

Pricing:

Breeze Intelligence pricing is based on credit packs of 100, 1,000 and 10,000. Packs range from $30 to $700 a month.

Cognism AI vs Breeze Intelligence:

Breeze Intelligence is focused on inbound data enrichment rather than outbound prospecting, and advanced features are only available on higher-tier HubSpot plans. What's more, due to the way pricing is set up, costs can increase significantly as your CRM grows. 

Cognism offers real-time data signals and tech install data with unrestricted views/ individual and page-level exporting on all packages. This is subject to a generous fair usage policy. 

While both providers have many integrations with other sales tools, such as Salesforce or HubSpot, Breeze Intelligence doesn’t offer integration with LinkedIn. Sales Companion is designed for sales reps’ workflows, including prospecting on LinkedIn.

Learn more about Cognism vs Breeze Intelligence. 

“Each week, I save 8-10 hours from being able to remove duplicate records on Salesforce and any emails that aren’t 100% verified.”

Read the full case study

50-60%

increase in open rates.

Jack Brewster
Digital Marketing Manager @Sparta Global

What makes the best AI sales assistant software?

Every AI powered sales assistant software offers features that promise better team performance, a streamlined sales process, and faster prospecting.

But, how can you be sure the tool you choose really lives up to those promises?

Here’s what to look out for when evaluating AI sales assistants:

Data accuracy and compliance

You want a tool that takes compliance seriously. Why?

Well, not only can failure to comply with data laws result in fines, but reaching out to prospects on DNC lists can ruin your brand reputation. The last thing you want is potential buyers to avoid your brand because your sales calls are a nuisance.

AI capabilities

Basic automation tools follow rigid, pre-set rules, for example, sending the same  email sequence to every lead after a fixed number of days.

While that may save time, it ignores important factors like buyer intent, engagement signals, and sales cycle stage.

A context-aware AI sales assistant goes beyond these static workflows.

It analyses real-time data from multiple sources, including CRM updates, email opens, call transcripts, and buyer signals. This way, it can recommend or execute the next best action for each specific prospect.

For instance, instead of sending a generic follow-up, it might:

• Trigger a personalised email when a decision-maker downloads a case study.
• Recommend a timely phone call when a prospect revisits your pricing page.
• Pause outreach if signals show the lead is engaged with a competitor’s content.

This type of AI doesn’t just automate tasks; it helps reps make smarter, better-timed moves, improving engagement rates and closing more deals.

Ease of use

AI sales assistants should be easy to use.

What’s the point of investing in a tool that’s supposed to make your reps’ lives easier when it’s hard to set up, has a strong learning curve, and doesn’t work half the time?

Global reach

If you’re prospecting into new markets or looking to scale in different regions, your  AI lead generation tool should align with those goals. 

This means complying with international privacy laws, showing time zone differences, and filling your contact database with fresh and accurate data. 

Integrations

Seamless CRM and sales engagement platform compatibility are essential for B2B businesses.

The best AI agents can integrate with tools your team uses daily without interrupting or changing your workflows.

👀Pssst - You know which tool ticks all these boxes? Cognism! Why not test our data for yourself? 

FAQs

Why Cognism’s AI wins across the board

Ready to see what accurate, compliant, and truly actionable sales data can do for your pipeline?

With Cognism’s Sales Companion, you get more than just an AI-powered sales assistant, you get phone-verified leads, GDPR and CCPA compliance, and real-time buyer insights that help your team connect with the right people at the right time.

It’s everything you need to prospect smarter, scale faster, and close more deals.

Don’t settle for tools that make big promises but deliver stale data. Book your demo today and discover why B2B revenue teams around the world trust Cognism to power their growth.