Lusha vs Seamless.AI: pricing, features and which to choose

Lusha is a B2B data and sales intelligence company founded in 2016 by Assaf Eisenstein and Yoni Tserruya. The company says its database covers more than 515 million business contacts and 29 million company profiles across North America, EMEA, APAC, and LATAM. It reports 280,000 or more revenue teams, 300 employees, and 7 million new signals processed each week. Lusha says email verification ranges from 95% to 98% by region, while direct dial accuracy exceeds 86%. The privately held company says it raised $245 million across a $40 million Series A and a $205 million Series B in 2021. Its customers include sales, marketing, recruiting, and RevOps teams, with access through Workspace, a browser extension, CRM connections, API, and MCP.

A typical Lusha workflow begins with a person, company, domain, or filter-based search. Users preview records, reveal verified emails or phone numbers, save prospects, enrich existing records, and monitor account activity. The browser extension displays contact information while users browse professional-network pages and business websites. Workspace organizes prospecting tables, while CRM integrations move records into connected systems. Developers can use the REST API for search, enrichment, prospecting, lookalikes, decision makers, website visitors, signals, and webhooks. The API supports real-time and bulk operations. Lusha MCP adds a conversational route through compatible AI clients, including Claude, ChatGPT, n8n, and Cursor. It can search, enrich, find lookalikes, pull signals, score lists, and manage Workspace tables, but it does not send messages or add contacts to sequences.

Lusha’s credit model is its main constraint: phone reveals consume five credits, and API charges vary by field and signal activity. The agreement limits data to internal B2B sales, marketing, recruiting, intelligence, and fraud-prevention purposes, and prohibits resale or embedding without written consent. Apollo.io adds email sequences and engagement tools, making it better suited to teams that want prospecting and outbound execution together. ZoomInfo targets larger enterprise deployments with broad intelligence and sales workflows. Cognism offers another enterprise-focused contact data option with compliance positioning. Lusha publishes a free tier and self-serve prices, while its API and MCP materials emphasize search, enrichment, signals, and AI access. Pick Lusha if your team needs credit-based B2B prospecting across web, CRM, API, and MCP workflows.

Seamless.AI is a B2B sales intelligence platform from Seamless Contacts Inc., founded in 2015 and based in Columbus, Ohio. CB Insights lists $3.38 million in total funding. Founder and CEO Brandon Bornancin remains the public face of the company. The business announced a rebrand to Seamless on February 10, 2026, while keeping seamless.ai as its website. Company figures point to rapid expansion: more than 500,000 sales teams in a June 2025 announcement, then more than 1,000,000 in the rebrand announcement. Its 2025 review reported 70 million contact searches and 13 million company searches. Those figures describe company-reported activity, not independently audited customer totals, but they show the product's intended scale and commercial focus clearly.

A normal workflow begins with filters for title, industry, geography, company size, and related company or contact fields. Users can research a person, save the record, enrich an uploaded list, or send contacts into outreach workflows. The product includes a Chrome extension, Job Change Enrich, Buyer Intent, org charts, AI Assistant, Autopilot, AI Campaigns, and CRM connections. Developers use a separate search and research sequence. They authenticate with an API key or OAuth, search contacts or companies, submit selected results for research, then retrieve results through polling or webhooks. The API also offers MCP access for Cursor, Claude, and ChatGPT. That gives technical teams a path to build CRM, warehouse, or agent workflows around the same contact data.

Credit accounting is the main constraint. Search, enrichment, research, AI actions, and automation use overlapping balances, and inaccurate records can still consume credits. Paid prices are not public, and API terms prohibit spam, resale, unauthorized aggregation, sensitive personal information, and unapproved caching. ZoomInfo is stronger for enterprise account intelligence and intent programs, while Seamless offers a free test and a prospecting workflow. Apollo.io presents a more explicit multichannel sequencing model, whereas Seamless emphasizes data discovery and enrichment. Lusha suits smaller contact lookups with fewer automation surfaces. Seamless is the better pick for B2B prospecting and API enrichment when a team can monitor credit use.