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B2B data 09 October 2023

10 Seamless.AI Competitors For US Contact Data

Daisy Shevlin
SEO & Content Manager @ Kaspr

Here are the top Seamless.AI competitors. 👇

  1. Kaspr 
  2. Cognism
  3. Apollo
  4. ZoomInfo
  5. Lusha
  6. RocketReach
  7. Hunter.io
  8. UpLead
  9. Clearbit
  10. Lead411 

The best Seamless.AI alternatives

Contact data tools (sometimes called “contact databases”) are used by marketing and sales teams to access contact information for new sales leads and update CRMs. 


They can help sales representatives qualify and convert new customers, so choosing the right tool for your team is essential.


And while Seamless.AI is well-known, it’s not the only tool on the market.


Let’s look at 10 different Seamless.AI competitors to give you the US contact data that B2B sales professionals need.

1. Kaspr

G2 rating: 4.4 


If you want to find accurate contact data quickly, Kaspr should be one of the first tools you consider. 


You can open the Kaspr Extension on any LinkedIn profile, list, event, or group to immediately access business contact details like cell phone numbers or professional email addresses. 


Our sales intelligence platform allows you to add leads to lists in your database, where you can add notes, create tasks, and set up automated workflows. 


Kaspr is a prospecting tool that can be used stand alone by individual contributors or with a large variety of integrations. Regardless of your existing tech stack, it’s an easy-to-use and fast contact data provider. 

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If you want to increase sales conversations at an accelerated pace, you can automate outbound activities, including sending LinkedIn connection requests and subsequent messages. 


Top features include: 

  • Verified and real-time data from 150 providers.
  • 500M+ phone numbers and email addresses.
  • Large database for US cell phone numbers.
  • See data prefixes so you don’t get landlines when you want cell phone numbers.
  • GDPR and CCPA aligned.
  • Easy-to-use LinkedIn Chrome Extension.
  • Use Extension across LinkedIn, Sales Navigator and Recruiter Lite.
  • Get contact details from different LinkedIn page types.
  • Extensive integrations (and more always being added). 
  • Automated outreach capabilities.
  • All-in-one tool for prospecting and managing leads. 


Starting price: There is a freemium version of Kaspr available. The paid plans start at $49 per user, per month for 1,200 phone credits and 60 direct email credits.


👻 See how Kaspr compares to Seamless.AI

2. Cognism

⭐ G2 rating: 4.7 


Cognism is a sales intelligence tool often used for lead generation purposes by international companies. 


They provide a prospect’s cell phone number and email address while complying with GDPR regulations and include data from prospects worldwide. 


They offer human-verified contact information, known as Diamond Data®. 


Cognism also helps you identify active buyers, assessing contextual data like intent data and sales event triggers to flag high-intent prospects most likely to purchase. For this reason, Cognism is really suited to revenue teams in larger companies.


Top features include: 

  • Strong contact B2B database across EMEA, NAM and APAC.
  • High accuracy for up-to-date cell phone numbers.
  • Helps identify active and high-intent buyers. 
  • Strong integrations to manage B2B sales leads.  
  • 98% accuracy for human-verified cell numbers.

Starting price: Pricing for Cognism is bespoke to meet your company’s needs, so it is available on request.

3. Apollo

⭐ G2 rating: 4.8 


Apollo is a sales intelligence platform that uses AI to help you find, contact, and convert members of your target audience.


Apollo offers standard information, like company size and company revenue. It also shows you information about prospects, like recent job changes and keywords related to the brand. 


When it comes to identifying leads, Apollo offers lead-scoring features so your sales representatives can quickly flag high-intent prospects that are likely to convert. 


They also have sales conversation intelligence features, coaching, deal intelligence features, and analytics. 


Top features include: 

  • Standard contact database features, with over 265M contacts.
  • Lead scoring features.
  • Additional intelligence features valuable later in the sales process, like conversation and deal intelligence.

Starting price: A free limited base plan is available, but paid pricing starts at $39 per user per month and comes with 300 mobile credits and 3,000 export credits annually.

👻 Kaspr is also an all-in-one prospecting tool: See it compared to Apollo

4. ZoomInfo

⭐ G2 rating: 4.4 


ZoomInfo is a contact database tool with a strong search engine. Search by company or contact and gain information about the prospect and the company. 


The contact database is just one part of ZoomInfo’s platform. They also offer sales automation, marketing features (including web chat and cross-channel advertising), data enrichment capabilities, and talent search. 


Top features include: 

  • Company or contact search. 
  • Expansive features beyond the contact database.
  • Marketing, sales, and talent search features.
  • Data enrichment capabilities.

Starting price: You have to contact ZoomInfo for custom pricing since their plans depend on your company’s needs.

5. Lusha

⭐ G2 rating: 4.3 


Lusha is another B2B database that’s a great Seamless.AI alternative, offering globally-compliant data to its users.


Buyer intent data is a major focus; Lusha provides an “interest” score for each contact. 


They have some unique features, like identifying companies based on their existing tech stack or reviewing contacts whose jobs have changed within a set time period. 


Top features include: 

  • Lead generation and talent acquisition features for businesses with high growth intent. 
  • Interest scores for each contact are based on complex buying signals.
  • Unique features like identifying leads based on their existing tech stack.
  • Integrations with diverse CRMs. 
  • Set up alerts for contacts, like job change alerts. 


Starting price: A free base plan is available, with paid plans starting at $29 per user per month, offering list management and a shared credit pool.

6. RocketReach

⭐ G2 rating: 4.5 


Sales reps can use RocketReach’s advanced search features to find members of their target audience and build lists quickly, with over 4.5B records in the database. 


RocketReach uses AI to improve the quality of its contacts continuously. 


Top features include:  

  • Advanced search based on qualities like “C-level Executive” or “Python Developer.”
  • Lightning-fast lookup speed.
  • Chrome Extension for fast contact lookup.
  • Extensive integrations with other popular sales intelligence tools.
  • Bulk lookups.

Starting price: Pricing starts at £29 (roughly $35) per month, which offers 1,500 annual lookups per user and email-only contact data.

7. Hunter.io

⭐ G2 rating: 4.4 


Hunter.io is an email finder tool that allows users to get contact data based on a company’s name or website. Their email verifier can reduce bounce rates, and they have email templates with personalization options to increase the success of cold outreach. 


Top features include: 

  • Quick contact lookup based on company name or website.
  • Free email verification. 
  • Email templates for cold outreach with personalization options. 
  • Automated and scheduled campaigns, including follow-ups. 
  • Email tracking. 
  • Lead identification is based on an activity like email opens. 
  • Integrations with automation and sales intelligence platforms. 


Starting price: A free base plan is available, but the paid plans start at $49 per month, offering 500 credits and 1,000 monthly verifications.  

8. UpLead

⭐ G2 rating: 4.7 


UpLead is an accurate B2B database for building prospecting lists. They have an intensive vetting process for lead information.


In addition to contact data for over 135M B2B contacts (and 16M company profiles), they also offer data enrichment features. UpLead has an advanced search option to find prospects that directly align with your ideal customer profile (ICP).  


Top features include: 

  • A large, accurate database of company and user profiles.
  • Data enrichment features.
  • Pay only for verified list matches. 
  • Email verification. 
  • Analysis of intent data that includes company engagement with your brand. 


Starting price: The paid plan starts at $74 per month, offering 2,040 credits annually 

9. Clearbit

⭐ G2 rating: 4.4 


Clearbit offers data for worldwide contacts, making it a valuable tool for businesses with international audiences. They also offer lead generation and nurturing features to improve the sales process. 


Top features include: 

  • Instant lead scoring and routing. 
  • In-depth company information, including granular categorization. 
  • Corporate hierarchies to ensure you’re getting the right person at the right company.
  • Trigger alerts for intent-based actions. 
  • Free Chrome Extension for B2B contact data. 


Starting price: Clearbit doesn’t display its pricing on the website, so you'll need to request a free data test.

10. Lead411

⭐ G2 rating: 4.5 


Lead411 uses both artificial intelligence and human verification (along with a variety of data sources) to ensure as much up-to-date contact information as possible.


They have features to help you quickly identify and reach out to high-value prospects. 


Their data enrichment features are also solid, and Lead411 will comb through and update data in your CRM to ensure it’s all up to date. 


Top features include: 

  • Transparent contract with no hidden fees. 
  • Bombora intent data is available to identify active buyers.
  • Human and AI verification of contact data.
  • B2B direct dials feature. 
  • Data enrichment features to update your existing contact database. 

Starting price: Pricing starts at $900 per year per user for 2400 credits for US customers.

FAQs about Seamless.AI competitors

Still considering Seamless.AI competitors and trying to decide which is best for you?


This FAQ section will answer all your questions so you can select a contact database tool and B2B sales tool that will help your team fill the pipeline with qualified leads. 

What to look for in a Seamless.AI alternative?

When choosing a Seamless.AI competitor, consider the following:

  • Price. Does the price point of the tool you’re considering match your budget? 
  • Scalability. Does the tool in question have the scale you need regarding the number of lookups per month?
  • Audience. Does your chosen contact database tool have information on the audience you need, including international audiences if relevant?
  • Contact information available. Some tools offer insights into buyer intent, while others may simply supply an email address; consider what information you need and which tools offer that.
  • Additional features. Some contact databases also offer sales intelligence tools or even email marketing software. 
  • Your existing tech stack. It’s important to choose software that integrates with the tools your sales team is already using. 

Where does Seamless.AI get data?

Seamless.AI gets its data from the platform itself, company websites, professional networks, CRMs, emails and cell phone contacts.


With your consent, they also collect data from the Seamless.AI website

How much does Seamless.AI cost?

Seamless.AI has a free plan offering 50 credits, basic integrations, and access to their real-time search engine. 

What’s the best Seamless.AI competitor?

The best Seamless.AI competitor will depend on your business and your needs, but Kaspr is a great option. 


Kaspr makes prospecting easier by finding the contact details you need while looking at profiles on LinkedIn. The Chrome Extension shows you a preview of the data you’re getting before you commit to spending a credit, which is something a lot of other tools don’t do.


You can also easily sign up for all Kaspr plans or get started for free without a credit card. With Seamless.AI, you need to speak with a salesperson to access any plans beyond their basic one. 

Try this Seamless.AI alternative for free

Looking to switch from Seamless.AI? Sign up now.


Kaspr can help you quickly access contact information for high-value leads. Once you have that information, you can instantly reach out to prospects, add them to lists, and automate outreach.


Join the 50K+ Kaspr users:


✅ No credit card is required to sign up.
✅ GDPR and CCPA aligned.
✅ 500M+ phone numbers and email addresses.
✅ All-in-one prospecting tool.
✅ Fully self-service.
✅ Custom plans.


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