Best B2B Data Providers for Claude

Apollo is the platform for your entire end-to-end sales strategy. Sellers and marketers use Apollo to discover more customers in market, connect with contacts, and establish a modern go-to-market strategy.

Clay is the AI-driven data marketplace and orchestration layer that powers modern go-to-market teams. Clay enables teams to find and qualify prospects with AI agents and intent signals, enrich their CRM with best-in-class accuracy and fill rates from 150+ data providers and AI, and orchestrate GTM workflows such as ABM, outbound, and pre-call meeting notes. Over 5,000+ companies, like OpenAI, Canva, Anthropic, and Rippling, use it to power everything from recurring CRM enrichment to targeted outreach. Find accounts with a burning need for your product. Analyze your closed-won list of top customers to narrow your ICP and find lookalikes of your best fit customers from multiple sources. Use AI to build the most sophisticated scoring and qualification logic. Continuously source new qualified leads so sales and marketing teams can continue to take actions such as creating Ads or launching outbound. Enrich with accuracy no single provider can match. Trusted data improves every part of your GTM engine. Clay’s waterfall enrichment approach across 150+ data sources combines multiple providers to result in higher fill rates at lower cost. Automatically run enrichments and sync data directly to your CRM or data warehouse while avoiding duplicates. The results of waterfalling providers speak for themselves: OpenAI doubled their inbound lead enrichment coverage rates and Anthropic tripled their inbound lead match rate. Orchestrate plays that convert accounts from aware to closed. Score accounts by fit and engagement, then build ABM tiers that move prospects through your funnel. When accounts hit intent thresholds—pricing page visits, job changes, webinar attendance—alert reps instantly or trigger multi-channel campaigns at scale including outbound with Clay’s sequencer.

NinjaPear, developed by Nubela, is a B2B platform specializing in customer and competitive intelligence data, offering unique insights through APIs and datasets that concentrate on various aspects such as company relationships, customer and investor intelligence, partner insights, and indicators of business activities. The platform effectively clarifies private connections for any organization, revealing information about customers, investors, and partners, thus enabling users to identify who is purchasing from, financing, collaborating with, or linked to a specific company. Its Customer Listing API efficiently outlines business relationships, including vendor-to-customer ties, while additional endpoints facilitate access to funding information, identification of disposable and free email addresses, and the tracking of competitors’ online activities, such as website updates and social media interactions, with integration options for tools like Feedly, Slack, Zapier, or any RSS reader. Moreover, NinjaPear supplies comprehensive API documentation, SDK examples, details on response headers relating to credit costs and cache durations, and an AI Skill that equips coding agents with procedural knowledge for better implementation. This robust set of features empowers businesses to make informed decisions and stay ahead in a competitive landscape.

Argorant is a comprehensive B2B contact database designed specifically for revenue teams that have grown weary of dealing with bounce-back emails and steep enterprise pricing. With the ability to search through an impressive 614 million contacts spanning 184 countries, users can easily find relevant companies by entering straightforward industry terms like ‘fintech’ or ‘dental practices.’ Each email address is meticulously verified through a live SMTP probe at the time of export, with catch-all servers being distinctly marked, ensuring that users receive only deliverable addresses rather than unreliable guesses based on patterns. Argorant operates on a fully self-service model, offering a free trial without the need for a credit card, along with paid plans starting at less than $100 monthly, flexible monthly billing, and the option to cancel with just one click. Additionally, it comes equipped with a REST API, webhooks, and an MCP server, allowing AI tools like Claude and GPT to seamlessly search for, verify, and export leads in real-time, making it an indispensable tool for modern sales strategies. This combination of features positions Argorant as a leading solution for businesses looking to optimize their lead generation efforts.