With Hunter io, sales teams can quickly find and verify professional email addresses, making it easier for them to connect with prospects.
With its bulk email search and domain search features, salespeople can efficiently gather contact details from entire organizations, boosting outreach efforts and expanding networks with greater accuracy.
But, the platform has some drawbacks and limitations that might force you to switch to an alternative.
In this article, we will cover the top 10 Hunter io alternatives, their features, pricing, pros, and cons.
Why Do You Need a Hunter io Alternative?
Here are the three primary reasons why you might want to switch from Hunter io to an alternative tool:
Reason 1: Limited Search Functionality
While you might appreciate Hunter io’s domain search feature for locating professional emails, you might not find any feature to identify specific employees within companies.
Plus, it doesn’t always provide a complete list of contacts or advanced search filters, like department or role.
As a result, you need to manually sift through incomplete results, which can be time-consuming.
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Reason 2: Email Verification is Expensive
You might find Hunter io’s pricing structure, particularly for email verification, high compared to competitors.
You will end up paying for a comprehensive package that includes features you might not use, leading to a sense that you’re overpaying for verification alone.
The lack of a separate, verification-only pricing tier is another pain point, as it limits affordability and flexibility if you’re solely interested in verifying email lists.
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Reason 3: Limited free usage
Hunter io’s free tier is restrictive compared to its competitors, especially if you need a more extensive reach or functionality for large-scale lead generation efforts.
You get only a handful of free monthly email lookups or verifications. This will force you to upgrade to paid tiers sooner, which can be off-putting for small businesses with lean budgets.
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What are the Best Hunter io Alternatives and Competitors?
Some of the best alternatives to Hunter io on the market are:
- Warmly - Real-time, person-level de-anonymization data and signal tracking to identify your warmest leads and reach out to them immediately.
- VoilaNorbert: Email finder tool designed to help businesses and individuals locate and verify email addresses.
- Apollo io: Sales intelligence platform that helps businesses uncover leads quickly and access their verified email addresses.
- RocketReach: Sales acceleration and lead intelligence solution with a database of 700 million profiles and 60 million companies worldwide.
- Snov.io: Sales engagement platform designed to automate various aspects of the sales prospecting process.
- UpLead: B2B lead generation platform designed for sales and marketing professionals.
- ContactOut: Prospecting and lead generation platform providing access to an extensive database of contact information.
- Zoominfo: An all-in-one B2B data platform that helps businesses connect with their ideal customers by providing real-time insights.
- Lusha: Solution for B2B teams looking to improve their prospecting efforts.
- Anymail Finder: Advanced email-finding tool that helps individuals and businesses discover and verify email addresses.
1. Warmly
Warmly (that's us) provides the best Hunter alternative in 2025 with our accurate, real-time, person-level de-anonymization data and signal tracking that help you identify your warmest leads and reach out to them immediately.
We believe that the actual golden opportunities lie in intent data—the ability of your systems to tell you when people are interested in your company and why.
Our signal-based revenue orchestration platform enables sales, marketing, and GTM teams to:
- Capture buyer interest in real-time.
- Gain quality insights into prospective customers, allowing reps to tailor their strategies accordingly.
- Engage them while they’re still hot and successfully convert them.
It’s the best option for companies looking to combine intent and action data to drive sales.
Let’s take a look at Warmly’s features that make it the best Hunter io alternative on the market: ⤵️
1. Identify Your Website's Visitors & Reveal Intent
Unlike Hunter io, Warmly identifies your website visitors.
Warmly can identify both companies and the individual profiles that are browsing your website.
As a result, your reps can focus their efforts on the right stakeholders from the get-go.
With Warmly, you’ll get another ace up your sleeve.
Once it identifies website visitors, the platform proceeds to enrich each visitor with:
- B2B data (email address, company name, phone number, industry, size, technographic, etc.).
- First-party intent data (details of your visitors’ website sessions, such as visited pages, recurring visits, etc.).
- Third-party intent data (insights into visitors’ entire digital buyer’s journey, including visits to competitors’ websites, job change intent, etc.).
This combination of first- and third-party intent data enables you to identify the leads that are most likely to buy right now as Warmly picks up the buying signals they’ve left throughout the web—on your website and beyond.
Your sales reps will be able to recognize who your hottest leads are right now and design tailored strategies for reaching out to them.
Check out our product walkthrough to learn more about Warmly’s features in use:
Why Is Intent Data Important?
Trying to sell a water bottle to someone who just walked out of their office isn’t the same as selling a water bottle to a marathon runner who just finished a marathon.
Understanding intent signals and recognizing them in time lets you:
- Qualify and score leads with greater precision and easily identify the hottest leads.
- Reach out when their interest level is at its peak.
- Create a hyper-personalized approach for each lead based on the contextual insights you have at hand, like which pages they visited, what they searched for, etc.
This helped Behavioral Signals shorten its sales cycle by 50-90% and source nearly $7M in its pipeline.
Platforms that omit intent data from their offering slow your lead generation efforts from the get-go, leaving you without one of the most powerful weapons in sales reps’ arsenals.
2. Streamline Sales Engagement Processes
Warmly’s automation features are by far one of the things most customers love about the platform.
Warmly uses intent signals it picks up to build complex workflows on top of them, enabling you to reach out to all the right leads at the best possible time.
It provides several automation features, including:
Orchestrator, which lets you automate email and LinkedIn outreach. The Orchestrator is highly configurable, meaning you can set up all the important parameters as you see fit, including:
- The action that triggers the workflow (lead matching your ICP lands on your website or a website visitor comes back to your pricing page).
- Filters that define which companies and individuals should be included in the workflow (these include everything from company size and industry to job position and seniority, etc.).
- The course that the workflow should take (send a contextual email, a personalized LinkedIn DM, or a LinkedIn connection request).
This capability improves time-to-lead, while SDRs can take over ones that respond and provide a personalized experience.
The AI-powered prospector prevents quality leads from falling through the cracks simply because you didn’t have a sales rep on hand.
Try it yourself 👇or watch it in action.
💡Note: You will need to be on one of Warmly’s paid plans to gain access to AI Prospector. For ARC, the ROI was 200% over 6 months.
AI Chat, which is an AI-driven chatbot that can be trained to:
- Qualify leads.
- Answer their questions.
- Book meetings.
- Offer relevant collaterals.
- Engage leads.
Lead routing, which lets you set up real-time Slack notifications that will alert the adequate sales rep whenever a lead matching certain criteria lands on your website or takes a high-intent action.
The combination of these automation features ensures that:
- Every high-value lead will be engaged.
- Your sales reps will have more time to focus on things that matter than most rather than act as surveillance guards on your website 24/7.
3. Live Video Chat
Engaging your leads while they’re still hot can make the difference between a successfully closed deal and an opportunity that is forever lost.
With Warmly, you won’t have to worry about that, as its Live Video Chat feature lets you engage leads while they’re still visiting your website.
In the “Warm Calls” section of Warmly’s dashboard, your sales team can see who’s visiting your website right now and monitor their session in real-time.
Once you detect a high-intent lead based on Warmly’s insights or a visitor matching your ICP, you can engage them in a video chat immediately.
Alternatively, you can rely on automated lead routing to notify reps whenever a high-value lead ends on your website.
This allows you to monitor their website interactions and hop on a call when they assess the time is right.
Try it out here:
4. A B2B Prospect Database: Coldly
Similar to Hunter, we also have our own cold database.
Warmly lets you access Coldly, which is a database with 200M+ accounts and contacts that gives your sales team an excellent starting point for prospecting.
Coldly includes all the B2B data your sales reps need to make initial contact, including:
- Validated emails.
- Phone numbers.
- LinkedIn profiles.
Our database also provides 25+ B2B filters and customizable data filters that you can set up, enabling your sales team to build highly targeted prospect lists in a few seconds.
Coldly also has a browser extension that lets you scrape essential B2B contact data from any source on the web, including LinkedIn profiles, company websites, etc.
This way, your team will have both accurate contact data at their fingertips and the right tools to pick up buyer intent signals and set up workflows on top of them.
5. Warmly’s AI SDR Agent
We partnered with 11x to combine our best-in-class research intent data with 11x’s next-level AI SDRs.
Our partnership makes up what we believe to be the best AI sales agent for sales teams in 2025 to book more meetings on autopilot with ICP-fit prospects.
You can identify your warmest leads with Warmly and then automatically book meetings with 11x’s AI SDRs.
How Does Warmly’s AI SDR Agent Work?
Following Warmly’s new 11x partnership, sales teams can automatically push de-anonymized, enriched contacts to 11x via webhooks.
Instead of manually reaching out to your prospects after identifying them with Warmly, 11x’s AI SDR will use Warmly’s warm lead data to prioritise contacts to reach out to based on intent signals, such as:
- Website activity (e.g., visited your pricing page).
- Chatbot interactions.
- Research intent.
- Email engagement.
- Recorded sales activity in your sales CRM.
➡️ You can find your 11x webhook URL in the corresponding Integrations tab in your Warmly account.
Here’s how the process looks like:
- Warmly de-anonymizes your website visitors (both companies and contacts so your outreach can be more targeted).
- Our platform filters leads based on intent signals and any existing segmentation rules that you’ve set up in your account.
- The prospects are then funneled to the best-fit outreach path based on their intent.
➡️ Cold leads → Chatbot, email.
➡️ Lukewarm leads → AI Chat, email.
➡️ Warm leads (showing some intent signals, but they're not quite there yet) → High-volume, autonomous calling, LinkedIn and email outreach with 11x’s AI SDRs.
➡️ Hot leads (they're showing the highest levels of intent but need strategic messaging to get them over the line) → Warm calling, LinkedIn and email outreach with your human sales reps.
💡 While 11x’s AI SDRs are great for high-volume, low-touch outreach with your cold, lukewarm, and warm leads, it should be your human sales development reps being looped in for the high-intent accounts.
This workflow can also be customized. You can use segments to narrow down your leads to people who’ve fulfilled specific intent signals.
For example, you can create an AI SDR campaign for prospects who have researched your competitors or leads who have already interacted with your website’s chatbot.
➡️ Our AI sales agent has built-in quality checks to ensure that every message you send out is effective, compliant, and aligned with your brand voice.
Your sales team will be able to focus on nurturing high-priority leads by leaving the legwork to 11x’s AI SDRs.
Warmly’s Pricing
Similar to Hunter, Warmly offers a free forever plan that allows you to identify up to 500 companies and individuals visiting your website per month.
In addition to that, you can set up ICP filters to quickly identify high-quality leads and automate basic lead routing.
There are three paid tiers to choose from:
- Data Only: Starts at $333/mo when billed annually or $499/month when billed monthly, and includes unlimited seats, 5,000 monthly visitors revealed, first-party intent signals, alerts, and access to Warmly’s prospecting database.
- Business: Starts at $19,000/year for up to 10,000 visitors or $45,000/year for up to 75,000 visitors, which includes second-party signals, sales orchestration, and lead routing.
- Enterprise: Custom pricing, which lets you identify a custom number of visitors, includes everything in Business plus custom signals and warm calling.
Warmly's Pros & Cons
✅ Identifies companies and individuals visiting your website.
✅ Enriches each identified lead with detailed B2B intelligence and reveals intent data.
✅ Versatile sales orchestration options.
✅ Live sales engagement capabilities.
✅ Reveals who your hottest leads are right now.
❌ Warm calling feature is available only on the Enterprise plan.
2. VoilaNorbert
VoilaNorbert is an email finder tool designed to help businesses and individuals locate and verify email addresses for their prospects with a 98% accuracy rate.
All you need is just two pieces of information: the person’s full name and the company’s domain name (URL).
Features
- The email verification service runs multi-step checks on each address to confirm that it’s still valid and won’t bounce.
- Enriches the contact data by providing additional details like job titles, company names, locations, and social media profiles. This lets you build more complete prospect profiles for personalized outreach.
- Integrates with multiple CRM, email marketing, and automation tools, such as Salesforce, Mailchimp, Zapier, and HubSpot.
- The Chrome extension lets you search for emails directly while browsing websites or LinkedIn profiles. A simple “Find Email” button appears next to LinkedIn profiles.
Pricing
Voila Norbert is free for the first 50 leads. After that, it offers tiered pricing plans based on the number of leads required:
- Valet plan: $49 per month for 1,000 leads
- Butler plan: $99 per month for 5,000 leads
- Advisor plan: $249 per month for 15,000 leads
- Counselor plan: $499 per month for 50,000 leads
Email verification and enrichment services are also offered on a pay-as-you-go basis.
Pros and Cons
✅ Handles large volumes of emails efficiently, saving time on prospecting.
✅ Filters out most fake or invalid addresses, presenting cleaner, more reliable lists.
❌ Credits are deducted for blank results in bulk uploads.
3. Apollo io
Known for its accurate B2B database of over 275 million contacts and 73 million companies, Apollo io’s sales intelligence platform helps businesses uncover leads quickly and access their verified email addresses.
Features
- Apollo’s Living Data Network uses AI to provide intelligent recommendations on high-value leads based on past successful prospecting activities. This lets sales reps know who to target next, increasing their chances of booking meetings and closing deals.
- Apollo’s signal-based prospecting combines demographic and behavioral signals to find leads actively researching products or services.
- Conducts precise searches for leads and companies using over 65 filters, including contact title, job function, and industry. This makes the outreach efforts more targeted and effective.
Pricing
Apollo io's pricing offers a free plan with 10,000 monthly credits, two active sequences, five mobile credits, and 10 export credits per month. You can also select from the three paid plans:
- Basic plan: $59 per user per month.
- Professional plan: $99 per user per month.
- Organization plan: $149 per user per month.
Pros and Cons
✅ The buyer intent feature identifies companies actively searching for similar services.
✅ The free tier lets you find a significant number of valid emails per month, making it accessible for small businesses.
❌ Sometimes, errors occur when pushing contacts to CRM, which is why some people are looking for Apollo alternatives.
4. RocketReach
RocketReach is a sales acceleration and lead intelligence solution with a database of 700 million profiles and 60 million companies worldwide, including sectors like healthcare, technology, and legal fields.
Its email finder guarantees 90-98% deliverability on verified emails, making it one of the most accurate tools.
Features
- Uses B2B intent data to identify potential buyers actively seeking solutions in specific industries.
- The Autopilot feature lets you generate dynamic search lists and create simple sequences with follow-up emails to engage prospects in just a few clicks.
- The Messages feature enables you to customize and automate email communications directly from RocketReach. You can monitor performance and engagement in one centralized location.
- Offers an API for enriching existing data at scale, tapping into its 4.5 billion records for enhanced contact intelligence.
Pricing
RocketReach offers three paid plans to choose from:
- Essentials plan: $99 per user per month for 40 lookups
- Pro plan: $165 per user per month for 100 lookups
- Ultimate plan: $300 per user per month for 250 lookups
👀 Note: The Essential plan gives you access to email addresses only, while the Pro and Ultimate plans offer both email addresses and mobile numbers.
Pros and Cons
✅ Reduces time spent on prospecting with bulk email import capabilities.
✅ The AI feature offers suggestions for similar profiles, helping you discover new potential contacts.
❌ There are issues with integrating RocketReach into the existing workflows, particularly with certain CRM platforms.
5. Snov.io
Snov.io is a comprehensive sales engagement platform designed to automate various aspects of the sales prospecting process – from lead generation and verifying contact information to customer relationship management.
Features
- Locates and collects email addresses of potential leads based on specific criteria defined by their ideal customer profile (ICP). You can access a vast repository of email addresses across various industries and search for leads using filters like location, company size, and industry.
- You can set up automated outreach campaigns on both email and LinkedIn and automatically schedule follow-up messages to nurture leads consistently.
- The Email Verifier tool employs a 7-tier verification system to check emails for validity and accuracy. It also bypasses gray-listing issues, avoiding delivery delays.
- The Email Warm-Up feature boosts the reputation of your email-sending domain, especially for new accounts or those that haven’t been used for outreach recently.
Pricing
Snov.io offers a free trial with 50 credits, 100 email recipients, and one mailbox warm-up. For more features, you can select the following paid plans:
- Starter plan: $39 per month for 1,000 credits
- Pro plan: Starts at $99 per month for 5,000 credits
Pros and Cons
✅ The LinkedIn automation tool allows you to find prospects and execute outreach directly from LinkedIn.
✅ The detailed daily reports on warm-up activities and outreach metrics help track performance and make informed decisions.
❌ A noted restriction of 40 characters minimum can be limiting when crafting messages or inputting data.
6. UpLead
UpLead is a B2B lead generation platform designed for sales and marketing professionals seeking a reliable and efficient way to connect with high-quality prospects.
It guarantees a 95% accuracy rate, ensuring the leads are legitimate and reliable. The best part? This accuracy level is supported by continuous data updates and verification processes.
Features
- Provides access to a comprehensive database of over 160 million business leads from a wide range of industries and company sizes.
- Uses over 50 customizable filters, like company size, industry, location, job title, and more, to refine your search and identify qualified leads that match your ideal buyer persona.
- Offers around-the-clock support from real customer service representatives, guaranteeing you receive timely assistance for any queries or technical issues.
- You can choose which emails to download, allowing you to have more control over your expenses. Accept-all and catch-all emails are flagged, and if emails are downloaded, no charges are incurred.
Pricing
Start with a 7-day free trial and grab five credits to evaluate the platform’s capabilities. After that, there are three paid plans to choose from:
- Essentials: $99 per month for 170 credits
- Plus: $199 per month for 400 credits
- Professional: Custom pricing
Pros and Cons
✅ Smooth integration with CRM systems, like HubSpot, allows for efficient data management and follow-up.
✅ Credits are not used when an email is found to be invalid.
❌ The difficulty of amending queries midway through the search process requires you to recreate searches from scratch.
7. ContactOut
ContactOut is a prospecting and lead generation platform providing access to an extensive database of contact information, including emails and phone numbers, for over 300 million professionals across various industries.
It’s trusted by over 1.4 million recruiters and sales professionals from notable companies like Microsoft, Google, and WarnerMedia.
Features
- Provides a search portal for filtering contacts based on over 20 data attributes, including job titles, companies, revenue, skills, locations, and more.
- The API integration enriches existing databases by adding verified emails and phone numbers for multiple prospects at once. The data is also updated hourly, ensuring you have access to the latest information.
- The AI-driven personalizer lets you craft tailored emails automatically. This saves time on manual research while keeping the outreach customized and relevant.
- Adheres to privacy laws such as GDPR and CCPA, which is helpful for businesses concerned about data security and user privacy.
Pricing
ContactOut comes with a free plan allowing you to access five emails, five phone numbers, and five exports per day. The paid plans include:
- Email plan: $99 per month with 300 exports and unlimited emails.
- Email + Phone plan: $199 per month with 600 exports and unlimited emails and phone numbers.
- Team/API plan: Contact the sales team for pricing.
Pros and Cons
✅ Integrated with LinkedIn to connect with prospects and gather their contact information quickly.
✅ The free trial lets users test the tool before committing to a paid plan.
❌ There are times when contact details appear but result in errors when accessed.
8. ZoomInfo
ZoomInfo is an all-in-one B2B data platform helping businesses connect with their ideal customers by providing real-time insights, detailed company and contact profiles, and advanced automation tools.
You can access over 600 million professional profiles and over 1.3 billion company profiles. The multi-layered verification approach, which leverages natural language processing (NLP) and AI, guarantees data accuracy and reliability.
Features
- Monitors web activity, news, and other buying signals to identify when prospects are in a buying cycle.
- The ZoomInfo Copilot feature provides AI-generated insights and tailored email templates to engage prospects more effectively. It also allows you to focus on high-priority accounts and automate repetitive tasks.
- The Conversation Intelligence feature captures and analyzes customer interactions across various channels, providing insights that can enhance sales strategies and improve customer response rates and conversions.
Pricing
You can start a free trial to test the tool’s features. To access more features, speak with ZoomInfo’s sales team to get a customized pricing plan that includes three tiers for Sales, Marketing, and Talent.
We were able to find some numbers in our ZoomInfo pricing guide.
Pros and Cons
✅ The Chrome extension allows access to ZoomInfo data while browsing company websites.
✅ The custom intent feature provides granular insights leading to more targeted sales strategies.
❌ The abundance of automated features often leads to complacency, where sales and marketing teams might lose sight of their overall objectives, which is why some people look for ZoomInfo alternatives.
9. Lusha
Lusha positions itself as a sales solution for B2B teams looking to improve their prospecting efforts by providing accurate and up-to-date company and contact data.
It’s compliant with GDPR and CCPA privacy standards, so user data is handled securely. It also facilitates data privacy with certifications like ISO 27701.
Features
- Analyzes behavioral signals to identify prospects most likely to buy products or services, leading to targeted outreach.
- Provides real-time alerts about job changes within target companies. This helps sales teams stay informed about potential decision-makers who are open to engaging with new vendors.
- Includes sophisticated search filters, like industry, revenue, employee count, and more, that let you build highly targeted contact lists quickly. You can export them directly to your CRM systems.
Pricing
Start with a free trial with 50 emails and five phone numbers. Apart from this, Lusha offers three paid plans:
- Pro plan: $49 per user per month with 160 emails and 40 phone numbers
- Premium plan: $79 per user per month with 320 emails and 80 phone numbers
- Scale plan: Custom pricing
Pros and Cons
✅ Intent targeting enhances the prospecting experiences and improves lead acquisition success rates.
✅ The ability to create separate contact lists and export data simplifies the sharing of information across the teams.
❌ The lack of a mobile app limits usability for users who need to prospect on the go, which is why some people look for Lusha alternatives.
10. Anymail Finder
Anymail Finder is an advanced email-finding tool that helps individuals and businesses discover and verify email addresses for their lead generation, outreach, and marketing campaigns.
It focuses on accuracy, so you only pay for email with a 97% or higher deliverability rate. This protects your reputation and optimizes email campaign success.
Features
- It verifies the deliverability of emails by checking if the email address can accept messages.
- Anymail Finder allows you to search for email addresses associated with specific domains.
- You can upload lists of names and domains to find email addresses in bulk.
- Offers an API for integrating email search and verification into custom applications or workflows.
- You get a free quota of verified email searches before committing to a paid plan.
Pricing
You can start with a 3-day trial to explore the best features. After that, choose any plan from the following:
- Starter plan: $14 per month with 50 credits
- Standard plan: $49 per month with 1,000 credits
- Scale plan: $149 per month with 5,000 credits
- Ultimate plan: $299 per month with 25,000 credits
Pros and Cons
✅ Provides accurate emails with minimal bounces reported.
✅ Easier to locate emails, particularly C-level and marketing contacts, compared to other platforms.
❌ The tool is less effective for email searches in niche or specific industries.
How to Close More Leads with Warmly?
With Hunter io and its alternatives, you will often have problems like limited search functionalities, expensive email verification, and limited free usage.
But what if we tell you that there's a platform that can minimize these drawbacks to a minimum?
Warmly gives you information about all the visitors that come to your website and helps you nurture and convert them into customers.
When the data comes from your own website, the possibility of it being wrong is comparatively less.
But Warmly doesn’t just reveal anonymous website visitors.
Our platform does much more:
- Website Intent Signals: Identify potential buyers by tracking their interactions with your website and get insights into their interest level, allowing for timely and targeted outreach.
- Coldly Contact Database: Access a wide range of accurate prospect contact details directly from the Coldly database, helping you reach out to the right people.
- Meeting Scheduling: Simplify your meeting process with automatic scheduling that removes the back-and-forth, ensuring a frictionless booking experience.
- Inbound Chat: Engage website visitors in real time with intelligent chat features designed to convert inbound traffic into meaningful leads.
- AI Prospector: Automate the search for high-potential prospects using AI-driven technology, ensuring your sales team focuses on the right opportunities.
Sign up for Warmly’s free plan and discover firsthand how it can fill your pipeline with qualified leads, or book a live demo to see it in action first.