Adapt.io vs Index Exchange
Side-by-side comparison of AI visibility scores, market position, and capabilities
B2B contact database and sales intelligence platform. Chennai India, raised $4M+, provides 200M+ contact records and company profiles for global sales prospecting via web app and Chrome extension.
About
Adapt.io is a B2B contact database and sales intelligence platform that provides sales and marketing teams with access to over 200 million professional contact records and company profiles for global prospecting. Founded in 2016 and headquartered in Chennai, India, the company has raised over $4 million in funding. Adapt.io competes in the large but price-sensitive B2B contact data segment by offering broad global coverage at accessible price points, targeting individual sales professionals, SMBs, and growth-stage companies seeking affordable prospecting data.\n\nAdapt.io's contact database covers business email addresses, direct phone numbers, and firmographic data across companies globally. Its Chrome extension integrates with LinkedIn, enabling users to reveal contact information for profiles visited during prospecting research. The web application provides list-building tools where users can filter contacts by industry, company size, geography, job title, and technology stack to build targeted prospect lists for outbound campaigns.\n\nAdapt.io has built its user base largely in the Asia-Pacific and global SMB market segments where US-centric data platforms provide less coverage or carry price points beyond smaller teams' budgets. The platform's combination of international data coverage and affordable pricing has made it popular among sales teams in India, Southeast Asia, and Latin America targeting global markets. Adapt.io's API enables integration with CRM and sales engagement platforms for automated prospect data enrichment and list synchronization.
$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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