Seamless.AI

The World’s Best Sales Leads®

Sales Intelligence & Data
★★★★☆ 4.2
2015 Founded
201-500 Employees
500,000+ users Customers
Columbus, Ohio, USA Headquarters
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Quick Facts

Website
seamless.ai →
Pricing Model
freemium
Company Type
private
Social
LinkedIn Twitter/X

About Seamless.AI

Seamless.AI is a B2B sales intelligence and contact data platform that positions itself as a real-time search engine for business contacts and companies. Using AI and a large proprietary data engine, it returns verified emails, direct dials, and mobile numbers so sales and marketing teams can connect with decision makers faster. The company markets itself heavily around its Chrome extension and web app, which let users capture contacts directly from LinkedIn, company websites, and search results in a single click.

The core product, Prospector, is complemented by add-on modules including Buyer Intent (to highlight in-market accounts), Job Changes (to track role moves and automatically update records), Data Enrichment (to turn basic identifiers into full profiles), and a Universal API for embedding Seamless.AI data into other tools. Native integrations and a Zapier connector allow one-click export into leading CRMs and sales engagement platforms such as Salesforce, HubSpot, Microsoft Dynamics 365, Pipedrive, Zoho CRM, Outreach, Salesloft, and others. A freemium model with 50 lifetime credits lets new users try the platform without a credit card, while paid tiers introduce larger credit allocations and more advanced features.

Founded in 2015 and headquartered in Columbus, Ohio, Seamless.AI has grown into a mid-sized private SaaS company with several hundred employees and millions in recurring revenue. The company has raised a relatively modest amount of outside capital compared to many competitors, focusing on product-led and outbound-driven growth. It has been recognized on LinkedIn Top Startups lists and is consistently rated as a leader or high performer in G2’s Sales Intelligence and Lead Intelligence categories, with thousands of verified reviews across G2, Capterra, and other review platforms.

In the crowded sales intelligence market, Seamless.AI is generally positioned as a lower-cost, easier-to-use alternative to heavyweight data providers like ZoomInfo. Its strengths are an intuitive UI, Chrome extension-driven workflow, and aggressive pricing for high-volume prospecting when credits are fully utilized. At the same time, reviewers frequently note trade-offs in data accuracy, contract flexibility, and transparency around its credit-based, annual subscription model. As a result, Seamless.AI tends to appeal most to growth-focused B2B teams willing to manage those trade-offs in exchange for speed, volume, and price.

Key Features

Real-time B2B contact search - AI-powered Prospector searches over 1.3B contacts and 121M companies to return verified emails and phone numbers in seconds.

Chrome extension for LinkedIn and websites - find and save contacts directly from LinkedIn profiles, company sites, and search results with one click.

Buyer intent signals - surfaces accounts that are actively researching relevant topics so reps can prioritize warm, high-intent prospects.

Job Changes tracking - alerts you when key contacts change roles or companies and automatically updates their information.

Data enrichment - turns a name, email, or domain into full contact and firmographic profiles and syncs them back to your CRM or CSV files.

CRM and sales tool integrations - native, one-click export to tools like Salesforce, HubSpot, Pipedrive, Zoho CRM, Microsoft Dynamics 365, Outreach, Salesloft, and others.

Advanced filtering and list building - segment by job title, seniority, industry, company size, technology stack, location, and more to define ICP and TAM.

Autopilot automation - automatically builds and refreshes targeted prospect lists based on saved criteria to keep pipelines full.

AI Research - generates research summaries and talking points about prospects and accounts to support personalized outreach.

In-app outreach workflows - send individual or bulk emails, manage basic cadences, and hand off contact lists to external sales engagement tools.

Org and account views - company-level profiles and contact hierarchies to visualize buying committees and prioritize stakeholders.

Credit-based usage model - flexible credit system for researching contacts, with monthly or daily credit refresh depending on plan.

Security and compliance controls - enterprise-grade security with SOC 2, ISO 27001 and GDPR/HIPAA-aligned data handling and logging.

Universal API - programmatic access to search, enrichment, and intent data for integrating Seamless.AI into internal tools, workflows, or products.

Pros & Cons

👍 Pros

  • Very easy-to-use interface and quick onboarding for non-technical sales reps.
  • Chrome extension and LinkedIn-centric workflow make finding and saving contacts extremely fast.
  • Large database of B2B contacts with access to both verified emails and direct dial/mobile phone numbers.
  • Strong native integrations and Zapier support for pushing data into CRMs like Salesforce, HubSpot, Pipedrive, and others.
  • Generally lower pricing and strong ROI compared with heavyweight competitors like ZoomInfo for many mid-market teams.
  • Helpful onboarding calls, webinars, and support resources that many users describe as responsive and friendly.

👎 Cons

  • Data accuracy can be inconsistent, with some outdated or invalid emails and phone numbers, especially in certain industries or smaller companies.
  • Credit-based pricing model and lack of transparent list pricing make total cost hard to predict, and users can burn through credits quickly.
  • Annual contracts with auto-renewal and a 60-day cancellation window have led some customers to feel locked in or surprised at renewals.
  • Coverage and accuracy tend to be weaker for very small businesses, niche sectors, or some international regions compared with top-tier data providers.
  • Some users report occasional UI glitches, slowdowns, or freezes when running large searches or exports.

User Reviews

G2
4.4
★★★★☆
Capterra
4.4
★★★★☆
TrustRadius
7.7
★★★★★

Integrations

Salesforce HubSpot Microsoft Dynamics 365 Outreach Salesloft Mixmax Zoho CRM Keap Pipedrive Insightly Greenhouse Close CRM Copper Cloze SugarCRM Freshsales Zapier Chrome Extension

Best For

Company Size

smb mid-market enterprise

Industries

SaaS Technology Professional Services Staffing & Recruiting Financial Services Manufacturing

Use Cases

Outbound sales prospecting Cold email and cold calling list building Account-based marketing and retargeting CRM data enrichment and hygiene Tracking job changes within key accounts Recruiting and sourcing passive B2B candidates

FAQ

What is Seamless.AI?

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Seamless.AI is a B2B sales intelligence and contact data platform that acts like a real-time search engine for business contacts and companies. It helps sales, marketing, and recruiting teams find verified emails, direct dials, and mobile phone numbers for prospects, build targeted lists using advanced filters, and push those contacts directly into CRMs and sales engagement tools. The product centers around a web app, Chrome extension, and optional API for integrating its data into other systems.

How much does Seamless.AI cost?

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Seamless.AI offers a permanent free plan that includes 1 user and 50 lifetime credits with access to core Prospector features and both emails and phone numbers. Paid plans are not listed with public list prices; instead, pricing is quote-based and depends on the number of users, required credits, and add-ons like Buyer Intent, Job Changes, Enrichment, and API access. All paid subscriptions are sold as annual contracts with either monthly or annual billing cycles, and enterprise deals are customized, so buyers should expect to speak with sales to get an exact price.

What are the main features of Seamless.AI?

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Key features of Seamless.AI include the Prospector search engine for real-time B2B contact discovery, a Chrome extension that works on LinkedIn and company websites, Buyer Intent signals, Job Changes tracking, and Data Enrichment for filling out contact and company profiles. It also offers list building with granular filters, one-click exports to CRMs and sales engagement tools, a Universal API for programmatic access, and security and compliance features such as SOC 2, ISO 27001, GDPR alignment, and HIPAA support.

Who are Seamless.AI's main competitors?

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Seamless.AI competes in the sales intelligence and B2B contact data market with vendors such as ZoomInfo, Apollo.io, UpLead, Lusha, and Cognism. Some teams also compare it with tools like Clearbit or SalesIntel for enrichment and buyer intent, and with lower-cost data providers that focus on specific regions or verticals. Buyers typically evaluate Seamless.AI against these alternatives on data coverage and accuracy, pricing structure, integrations, and contract flexibility.

Is Seamless.AI good for small businesses?

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Seamless.AI can be a strong fit for small businesses and startups that rely on outbound sales and want to test a data platform without a large upfront investment. The free plan and entry-level Basic tier allow solo sellers or small teams to experiment with real-time contact search and the Chrome extension. However, its paid plans are structured as annual, credit-based subscriptions with auto-renewal, and some reviewers feel the contracts are rigid. Very small or non-outbound-focused businesses may find the commitment and complexity unnecessary compared with simpler, pay-as-you-go tools.

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