Slintel vs Index Exchange
Side-by-side comparison of AI visibility scores, market position, and capabilities
B2B technographic data and sales intelligence platform. San Francisco CA, acquired by 6sense in 2021. Tracks technology usage signals across 60M+ companies for competitive displacement sales.
About
Slintel is a B2B technographic data and sales intelligence platform that tracks technology usage signals across companies to help sales teams identify competitive displacement opportunities and technology-based prospect segments. Founded in 2018 and headquartered in San Francisco, California, Slintel was acquired by 6sense in 2021 to strengthen 6sense's technographic data layer within its broader revenue intelligence platform. Slintel tracks technology adoption patterns across more than 60 million companies globally.\n\nSlintel's technographic data identifies which software tools a company is currently using — from CRM platforms and marketing automation tools to developer infrastructure and security products — by analyzing job postings, web technology signals, and other publicly available data sources. This technology stack intelligence enables sales teams to build target lists of companies currently using a competitor's product or recently replacing a tool the seller could displace, creating highly specific and contextually relevant outreach.\n\nAs part of 6sense, Slintel's technographic intelligence integrates with 6sense's broader account engagement and intent data platform, providing revenue teams with a richer signal set for account prioritization. The combination of technographic data (what tools a company uses), intent data (what a company is researching), and account engagement data (how a company is engaging with a vendor's digital properties) creates a multi-signal account scoring model that represents the next generation of B2B data intelligence.
$127-176M revenue 2025; 594 employees Dec 2024; Frost & Sullivan 2025 Innovation Award; Header Tag most-used header-bidding tech 2024; programmatic ad market $595B 2024 to $800B 2028; SSP leader
About
Index Exchange is a global programmatic advertising marketplace founded in 2001 in Toronto, Canada, originally as a traditional ad network and reborn as one of the industry's most trusted independent supply-side platforms. The company's core technology provides publishers with a transparent, high-performance programmatic auction infrastructure for selling display, video, and connected TV advertising inventory, with a strong emphasis on data privacy, header bidding innovation, and clean supply chain practices in an industry often criticized for opacity.\n\nIndex Exchange's platform connects thousands of premium publishers with hundreds of demand-side platforms and agency trading desks, facilitating billions of daily ad transactions across web, mobile, and CTV environments. The company's Header Tag technology was ranked the most widely used header-bidding solution in 2024, reflecting its deep integration into the publisher technology stack. Index Exchange differentiates through its commitment to transparency — providing buyers with detailed supply path information and working to reduce the intermediary layers and fraud that inflate costs across programmatic ecosystems.\n\nIndex Exchange generated between $127 million and $176 million in revenue in 2025 and received Frost & Sullivan's 2025 Innovation Award, underscoring its continued product investment in a consolidating industry. As privacy regulations reshape digital advertising and third-party cookie deprecation forces structural changes in targeting and measurement, Index Exchange's clean supply path positioning and publisher-first approach make it a preferred partner for premium publishers navigating a period of significant disruption. Its independence from major buy-side platforms gives it credibility on both sides of the marketplace.
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