Seamless.ai Alternatives

You might know Seamless.ai for its strengths. It’s a solid choice when you need a large B2B database or a quick way to find phone numbers. Many teams use it to build prospect lists and find contact details for their sales outreach.

But like any tool, it has limits. Some users report occasional data inaccuracies or find the credit system confusing. We've analyzed the top alternatives based on G2 reviews to help you shortlist the best fit for your team. Let's get started.

A Look at 11x for Sales Teams

If your team is interested in digital workers for sales operations, 11x provides this capability. These agents can manage routine tasks, which allows your sales staff to concentrate on higher-value activities. See if this approach works for your organization.

11x is a GTM platform that uses AI agents to manage sales processes. An agent named Alice finds prospects, conducts outreach via email and LinkedIn, and updates your CRM. A second agent, Julian, qualifies inbound leads and books meetings. The platform consolidates tools for data enrichment and outreach, replacing separate solutions in a GTM stack.

Seamless.ai Alternatives

Here, we examine several alternatives to Seamless.ai in detail. Each review covers pricing, main features, and the specific pros and cons when compared to the platform.

1) ZoomInfo SalesOS

ZoomInfo SalesOS is a go-to-market intelligence platform for B2B organizations. It unifies company and contact data, buyer-intent signals, and automation tools into one system. The platform helps revenue teams identify and connect with valuable buyers.

Users can build prioritized lead lists with verified contact details for sales outreach. The system also helps identify in-market accounts and serves as a single source of truth for sales, marketing, and RevOps teams.

ZoomInfo SalesOS's Main Features

• Identifies prospects with real-time intent signals to find accounts ready to purchase.
• Turns anonymous website visitors into potential sales leads through its tracking feature.
• Analyzes call and meeting interactions to provide user insights.
• Offers a generative-AI companion to draft outreach and surface account information.

How ZoomInfo Compares to Seamless.ai

Average Review Score: 4.5/5 stars based on 8,738 G2 reviews.

• ZoomInfo SalesOS provides buyer intent data to help find accounts ready to purchase, a capability that is not a core part of Seamless.ai.
• The platform's ability to identify anonymous website visitors creates an additional lead channel not available in Seamless.ai.
• Its conversation intelligence feature analyzes sales calls and meetings to offer insights beyond the contact data available in Seamless.ai.
• The generative AI companion drafts sales emails and summarizes account information, which provides a different type of support than Seamless.ai's data focus.

How ZoomInfo Compares to Seamless.ai

• ZoomInfo SalesOS often requires a larger budget. Its subscription model can be more costly than the flexible, credit-based pricing that Seamless.ai offers to users.
• The platform's setup can be more involved. It might take up to a month to implement fully, which is different from the simpler start some users find with Seamless.ai.
• A return on investment may take longer to materialize. Data suggests an average of 14 months, a factor for teams that need immediate value from their provider.
• Its annual contract structure provides less flexibility. This is a contrast to Seamless.ai's model, which can better suit teams with variable data needs during the year.

Pricing and Cost-Effectiveness

ZoomInfo does not list pricing publicly and operates on an annual subscription model, which typically requires a larger budget. This contrasts with Seamless.ai's credit-based system, which offers more flexibility for teams with fluctuating data needs.

2) Apollo.io

Apollo.io is a sales intelligence platform with a large B2B database. It helps teams find contact information, such as verified email addresses and phone numbers for prospects. The platform combines data with engagement tools, so sales professionals can manage outreach from a single location.

Apollo.io's Main Features

• Provides a database of contacts combined with tools for sales engagement.
• Automates outreach with a sequencer for creating multi-step email and task campaigns.
• Includes a dialer to make and log calls directly within the platform.
• Offers analytics to track open rates, reply rates, and other campaign metrics.

How Apollo.io Compares to Seamless.ai

Average Review Score: 4.7/5 stars based on 8,904 G2 reviews.

• Apollo.io provides an all-in-one platform that includes sales engagement tools. This differs from Seamless.ai, which focuses primarily on providing contact data.
• The platform includes a sequencer to automate outreach. This allows users to build multi-step campaigns, a function not native to Seamless.ai.
• It offers a built-in dialer for making and logging calls. In comparison, Seamless.ai provides phone numbers but does not include a native calling function.
• Users get detailed analytics on outreach performance, such as open and reply rates. This provides campaign insights that are not a core part of the Seamless.ai platform.
• Its tiered subscription model includes a free plan. This structure offers a different approach compared to the credit-based system of Seamless.ai.

How Apollo.io Compares to Seamless.ai

• Some users report that Apollo.io's data can occasionally be out of date. This differs from Seamless.ai, which uses a real-time search engine to verify contact information at the moment of the search.
• The platform's all-in-one nature includes many sales engagement tools. For teams that only need a dedicated data provider, the interface might feel more complex than Seamless.ai's specialized focus on contact retrieval.
• Its subscription plans offer a set number of credits per month. This structure can be less flexible for teams with fluctuating data needs compared to Seamless.ai's model, where users can purchase credits as needed.

Pricing and Cost-Effectiveness

Apollo.io offers a free plan and paid tiers starting at $49 per user per month. This predictable subscription model contrasts with Seamless.ai's flexible credit system. Apollo's structure may suit teams with steady usage, while Seamless.ai can be better for fluctuating data needs. For full details, check the pricing on Apollo.io's official website.

3) Lusha

Lusha is a sales intelligence platform for B2B lead searches worldwide. It provides AI recommendations for prospects and automates outreach in a single workflow. Teams use it to build prospect lists and prioritize outreach with buyer intent signals, all while integrating with popular CRMs and sales tools.

The platform emphasizes global data coverage and compliance with standards like GDPR and CCPA, so reps can focus on sales.

Lusha's Main Features

• Uses buyer intent signals to identify in-market accounts and sends real-time notifications on triggers.
• Generates daily, ICP-based lists of companies and decision-makers through its recommendation engine.
• Automates multichannel outreach with personalized email sequences that are driven by AI copy.
• Records and analyzes sales meetings to provide insights through its conversation intelligence feature.

How Lusha Compares to Seamless.ai

Average Review Score: 4.3/5 stars based on 1,516 G2 reviews.

• Lusha offers buyer intent data to show which accounts are actively in-market. This differs from Seamless.ai, which centers on contact information retrieval.
• Its AI recommendation engine automatically creates daily prospect lists based on an ideal customer profile. This contrasts with the more manual list-building process in Seamless.ai.
• The platform includes automated sequences for multichannel outreach. Seamless.ai provides the contact data but requires a separate tool to execute campaigns.
• A conversation intelligence feature records and analyzes sales calls for insights, a capability not present in Seamless.ai.

How Lusha Compares To Seamless.ai

• Some users find that Lusha's contact information is occasionally out of date. This is different from Seamless.ai, which uses a real-time engine to verify data during a search.
• The platform's subscription plans come with a set number of credits. This structure offers less flexibility for teams with fluctuating needs compared to Seamless.ai's pay-as-you-go credit model.
• Lusha's pricing model may be less cost-effective for smaller teams or those with low usage. In contrast, Seamless.ai's system allows users to purchase credits as needed, which can suit smaller budgets.

Pricing and Cost-Effectiveness

Lusha provides a free plan and paid tiers starting at $36 per user per month, offering predictable costs. This subscription model contrasts with Seamless.ai's flexible credit system, which can be better for teams with variable data needs. For complete details, see the pricing information on Lusha's official website.

4) RocketReach

RocketReach is a service with a large database of professional contacts and company data. Sales and recruitment teams use the platform to find emails and phone numbers for outreach. The tool allows users to look up people and companies to build prospect lists.

RocketReach's Main Features

• Offers a database of professional contacts and company data that users can search.
• Finds email addresses and phone numbers for specific individuals and companies.
• Allows sales and recruitment teams to build targeted prospect lists for outreach.

How RocketReach Compares to Seamless.ai

Average Review Score: 4.4/5 stars based on 918 G2 reviews.

• RocketReach provides specialized data for industries like healthcare, which is different from the more general B2B focus of Seamless.ai.
• The platform allows for bulk lookups to enrich large contact lists at once. This process differs from Seamless.ai, where users often search for contacts individually.
• It offers a robust API for custom integrations, giving development teams more flexibility compared to the standard user interface of Seamless.ai.
• The tool includes intent data to help identify prospects. This feature provides a layer of lead qualification that is not a core part of the Seamless.ai platform.

How RocketReach Compares To Seamless.ai

• Some users report that RocketReach's contact data is sometimes outdated. This differs from Seamless.ai, which uses a real-time engine to verify information at the moment of a search.
• Its pricing plans are based on a fixed number of lookups per month. This structure can be less flexible than Seamless.ai's credit system for teams with variable data needs.
• The platform serves a broad audience, including recruitment and marketing teams. This is different from Seamless.ai, which has a more specific focus on sales intelligence workflows.

Pricing and Cost-Effectiveness

RocketReach offers plans starting at $99 per month for 100 lookups, providing a predictable subscription cost. This contrasts with Seamless.ai's flexible credit system, which may better suit teams with fluctuating data needs. For full details, check the pricing on RocketReach's official website.

5) Cognism

Cognism is a sales intelligence platform that provides B2B data for revenue teams. The service offers access to a database of company and contact information. Users can find phone numbers and build prospect lists for sales outreach.

Cognism's Main Features

• Provides phone-verified mobile numbers, known as Diamond Data®, to increase connect rates.
• Offers extensive contact data coverage for the UK and EMEA markets.
• Identifies buying signals, including hiring trends, funding rounds, and technographic changes.
• Enriches CRM records in bulk through CSV or API to complete and refresh existing data.

How Cognism Compares to Seamless.ai

Average Review Score: 4.6/5 stars based on 1,033 G2 reviews.

• Cognism provides phone-verified mobile numbers, known as Diamond Data®, which are checked by a data team. This offers a different layer of verification compared to Seamless.ai's real-time search.
• Its data coverage is particularly strong in the UK and EMEA markets. This focus can provide more reliable contact information for European prospecting than Seamless.ai's general database.
• The platform tracks buying signals like company funding and hiring trends. This helps users find timely opportunities, a feature not central to Seamless.ai's contact retrieval service.
• Users can enrich CRM records in bulk using a CSV file or API. This approach differs from Seamless.ai, where contacts are often searched for individually.

How Cognism Compares To Seamless.ai

• Some users report that Cognism's contact data can be outdated. This is different from Seamless.ai, which uses a real-time search engine to verify information at the moment of a search.
• The platform's subscription model can be less suitable for smaller teams. In comparison, Seamless.ai offers a flexible credit-based system that can adapt to variable data needs.
• It might take up to a month to implement Cognism fully. This is a longer setup period compared to the simpler start that some users find with Seamless.ai.

Pricing and Cost-Effectiveness

Cognism operates on a subscription model, which contrasts with Seamless.ai's flexible, credit-based system. As pricing is not public, we recommend visiting Cognism's official website for the most accurate information.

Consider 11x for Sales Automation

If your goal extends beyond data acquisition to sales process automation, consider 11x. Its AI agents handle prospecting and lead qualification. This lets your sales team concentrate on high-value activities instead of routine tasks.

With 11x, we use AI to manage your sales playbook. Our agent Alice finds accounts, enriches data, and starts outreach. Julian takes calls, qualifies leads, and books meetings. The platform consolidates tools for intent data and email warmup, so you do not need extra software.

Book a demo to see how it works.

6) Clearbit

Clearbit is a data platform for B2B companies. It provides data to help teams understand their customers and find new prospects. The platform enriches records with firmographic and contact information.

Sales and marketing teams use this data to personalize outreach and qualify leads. The service acts as a data foundation for go-to-market operations.

Clearbit's Main Features

• De-anonymizes website traffic to identify visiting companies that match an ideal customer profile.
• Enriches records with firmographic data, corporate hierarchy, and normalized job roles for lead scoring.
• Shortens web forms by automatically enriching fields to reduce friction and increase conversion rates.
• Uses large-language-model techniques to process unstructured information into standardized datasets.

How Clearbit Compares to Seamless.ai

Average Review Score: 4.4/5 stars based on 626 G2 reviews.

• Clearbit identifies anonymous companies that visit your website. This creates a source of inbound leads, which is different from Seamless.ai's focus on building outbound lists.
• The platform enriches existing records with over 100 data points for lead scoring. This automated approach contrasts with Seamless.ai, where users primarily search for new contacts.
• It can shorten website forms by automatically filling in known information. This feature helps increase lead conversion rates, a function not available in Seamless.ai.
• This tool offers deep integrations with CRMs like HubSpot to automate workflows. This is different from Seamless.ai, which is mainly used for contact data acquisition.

How Clearbit Compares To Seamless.ai

• Clearbit's main function is to enrich existing data and identify website visitors. This is different from Seamless.ai, which is designed for sales teams to build new outbound prospect lists from scratch.
• Some users report that its contact data can be out of date. This contrasts with Seamless.ai's real-time search engine, which verifies information at the moment of a search to improve accuracy.
• The platform is built around data enrichment for existing leads. For teams that only need to find new contact information for outreach, the workflow may feel less direct compared to Seamless.ai's focus on contact retrieval.

Pricing and Cost-Effectiveness

Clearbit's pricing is not public, which contrasts with Seamless.ai's flexible credit system. For the most accurate and up-to-date pricing information, we recommend visiting Clearbit's official website.

7) SalesIntel

SalesIntel is a sales intelligence platform that offers B2B data for go-to-market teams. The service provides a database with company and contact information. Sales teams use the platform to find phone numbers, build targeted lead lists, and support account research for prospect outreach.

SalesIntel's Main Features

• Offers human-verified B2B data with 95% accuracy and includes a research-on-demand service.
• Identifies anonymous website visitors in real time through its VisitorIntel feature.
• Sources buyer intent signals from multiple providers to help prioritize in-market accounts.
• Includes an evidence-based tool to build and validate an Ideal Customer Profile (ICP).

How SalesIntel Compares To Seamless.ai

Average Review Score: 4.3/5 stars based on 462 G2 reviews.

• SalesIntel provides human-verified data that is re-verified every 90 days. This data quality process is different from the real-time search engine verification used by Seamless.ai.
• It includes a research-on-demand service that lets users request specific data. Seamless.ai does not have a comparable manual research function and relies on its automated database search.
• The platform's VisitorIntel feature identifies anonymous companies on your website. This creates an inbound lead channel, which is different from Seamless.ai's focus on building outbound contact lists.
• This tool sources buyer intent data from multiple providers to help prioritize accounts. In contrast, Seamless.ai centers on contact information retrieval rather than intent signals.

How SalesIntel Compares To Seamless.ai

• Some users report that SalesIntel's data can be outdated due to its 90-day refresh cycle. This differs from Seamless.ai, which uses a real-time engine to verify contact details instantly.
• The platform's subscription model may include export limits, which can be less flexible for teams with variable needs. This contrasts with Seamless.ai's credit-based system that allows users to purchase data as needed.
• Its implementation can take up to a month, based on user feedback. This is a longer setup period compared to the simpler start that some teams experience with Seamless.ai.

Pricing and Cost-Effectiveness

SalesIntel operates on a subscription model, which contrasts with the flexible, credit-based system of Seamless.ai. Since pricing is not public, we recommend visiting SalesIntel's official website for the most accurate information.

8) LeadIQ

LeadIQ is a sales prospecting platform that helps teams find contact data. Users can capture prospect information from websites and social profiles. The service works to identify verified email addresses and phone numbers. Sales teams use the tool to build accurate outreach lists and sync data to their CRM.

LeadIQ's Main Features

• Captures lead and contact information from websites and social media profiles.
• Tracks sales triggers, such as job changes, to help users time their outreach.
• Integrates with CRMs and sales engagement platforms to sync prospect data.
• Offers a lead builder and search function to find company and contact data.

How LeadIQ Compares to Seamless.ai

Average Review Score: 4.2/5 stars based on 1,097 G2 reviews.

• LeadIQ tracks sales triggers, such as job changes, to help users time their outreach. This is different from Seamless.ai, which focuses on contact data retrieval.
• The tool captures contact information from social profiles and websites. This workflow is slightly different from Seamless.ai, where users primarily search a central database.
• It provides a free plan with a monthly credit allowance. This offers an alternative to Seamless.ai's system, where users purchase credits to access data.
• The platform includes features to help personalize sales messages. This provides support for the outreach step, whereas Seamless.ai centers on supplying the contact data itself.

How LeadIQ Compares To Seamless.ai

• Some users report that LeadIQ's contact data can be out of date. This is different from Seamless.ai, which uses a real-time search engine to verify information at the moment of a search.
• Its workflow centers on capturing contacts from social profiles. Teams that need to search a large, centralized database for list building might find the Seamless.ai approach more direct for their needs.
• The platform's subscription plans have a set number of monthly credits. This structure can be less flexible than Seamless.ai's system, where users can purchase credits based on fluctuating project demands.

Pricing and Cost-Effectiveness

LeadIQ offers a free plan and paid tiers starting at $45 per user per month, providing a predictable subscription cost. This contrasts with Seamless.ai's flexible credit system, which may better suit teams with fluctuating data needs. For full details, check the pricing on LeadIQ's official website.

9) UpLead

UpLead is a B2B platform that provides a database of contacts and companies. Sales teams use the service to find phone numbers and email addresses. The tool helps users build prospect lists for outreach campaigns and provides data to support go-to-market efforts.

UpLead's Main Features

• Offers real-time email verification to ensure data accuracy at the point of search.
• Provides over 50 search filters, including intent data, to find in-market buyers.
• Enriches contact and company data to clean and update existing records in a CRM.
• Integrates with CRMs like Salesforce and HubSpot to automate data workflows.

How UpLead Compares to Seamless.ai

Average Review Score: 4.7/5 stars based on 797 G2 reviews.

• UpLead offers real-time email verification at the point of search to ensure data accuracy. This is a different approach from Seamless.ai's real-time engine that verifies contact information more broadly.
• The platform includes intent data among its 50+ search filters to help find in-market buyers. This provides a lead qualification layer that is not a core feature of Seamless.ai.
• It provides a data enrichment feature to clean and update existing records in a CRM. This function differs from Seamless.ai, which is mainly used to find new contacts for outbound lists.
• The tool offers a free trial plan to test the platform. This provides a different entry point compared to Seamless.ai's credit-based system, which requires a purchase to start.

How UpLead Compares To Seamless.ai

• UpLead's monthly subscription plans come with a fixed number of credits. This structure can be less flexible than Seamless.ai's model, where teams purchase credits on demand to match variable project needs.
• Some users report that while emails are verified, other contact details can be outdated. This differs from Seamless.ai's engine, which verifies all contact data at the time of the search.
• The tool's database might sometimes lack contacts for very specific or niche roles. In comparison, Seamless.ai's database focus may yield more results for users who search broadly across many industries.

Pricing and Cost-Effectiveness

UpLead offers plans starting at $99 per month, providing a predictable subscription cost. This contrasts with Seamless.ai's flexible credit system, which may better suit teams with fluctuating data needs. For full details, check the pricing on UpLead's official website.

10) Hunter

Hunter is a platform that finds professional email addresses. Sales and marketing teams use it to discover contact information for people at specific companies. The tool allows users to search for contacts by domain or individual name to build outreach lists.

The service also includes an email verifier to check address validity and provides a phone number finder. It helps teams connect with prospects and supports data enrichment for business development.

Hunter's Main Features

• Finds professional email addresses associated with a specific company domain or individual.
• Includes an email verifier to check the validity of addresses before outreach.
• Provides a built-in platform to create and send cold email campaigns.
• Crawls the web to index publicly available professional email addresses for its database.

How Hunter Compares To Seamless.ai

Average Review Score: 4.4/5 stars based on 592 G2 reviews.

• Hunter includes a built-in platform to create and send cold email campaigns. This is different from Seamless.ai, which provides contact data but requires a separate tool for outreach.
• It offers a free plan with a monthly search and verification allowance. This provides an alternative entry point to Seamless.ai's system, where users purchase credits to access data.
• The platform builds its database from public data it crawls on the web. This approach is different from Seamless.ai's real-time search engine, which verifies contact details at the time of a search.
• Its domain search feature finds all email addresses connected to a specific company website. This offers a different workflow compared to Seamless.ai, where users typically search for individual contacts using filters like job title or industry.

How Hunter Compares To Seamless.ai

• Hunter focuses mainly on finding email addresses. In comparison, Seamless.ai provides a broader range of contact data, and some users find its real-time search engine more effective for locating direct-dial phone numbers.
• The tool's workflow often centers on searching by company domain. This is different from Seamless.ai, where users can build lists from a central database using more detailed filters like job function or company size.
• It builds its database by crawling public web data. This process is different from Seamless.ai's real-time engine, which verifies all contact information at the moment of a search to ensure it is current.

Pricing and Cost-Effectiveness

Hunter offers a free plan and paid tiers starting at $49 per month, providing a predictable subscription cost. This contrasts with Seamless.ai's flexible credit system, which may better suit teams with fluctuating data needs. For full details, check the pricing on Hunter's official website.

Which One Should You Go With?

Many variables influence the choice of a Seamless.ai alternative, from budget to specific feature needs. This guide reviewed several options to help you find the right fit for your go-to-market strategy.

If your needs go beyond data acquisition to sales process automation, consider 11x. Its AI agents handle prospecting and lead qualification, which allows your sales team to focus on high-value activities.