We Invested in Atrios, An AI Platform for Trusted B2B Relationships

We’re excited to announce that Blitzscaling Ventures has invested in Atrios, a B2B social referral platform rethinking how companies generate pipeline in a world where traditional outbound no longer works.

Cold outreach is broken. Email inboxes are flooded or filtered by AI, phone calls go unanswered, and even LinkedIn is increasingly treated as noise. While inbound marketing helps companies get discovered, it’s insufficient on its own. Businesses still need to proactively reach customers, but the old tools simply don’t work.

What still cuts through is timeless: a warm introduction from someone you trust.

Atrios captures this relationship capital and turns it into a scalable marketplace. Companies reach high-value buyers through paid, warm introductions, using the same budgets they already spend but with precision instead of spray-and-pray. We believe this becomes a durable part of the modern marketing mix alongside brand, inbound, events, and partnerships.

Atrios is a likely blitzscaler (see our scorecard) because it combines marketplace dynamics with virality with product-led growth, powered by AI. The platform uses AI to analyze social graphs and enriched data sources to identify high-probability introductions, explain to connectors why an introduction makes sense, and assist with crafting thoughtful, value-based outreach. Human curation and reputation systems ensure quality and trust, preventing spam and preserving long-term network health.

Founded by second-time entrepreneur Taylor Offer (linkedin), Atrios was initially bootstrapped from a simple spreadsheet and grew entirely through word of mouth before joining the a16z Speedrun program. Today, connectors earn meaningful income for successful introductions, while companies see higher-quality conversations and faster paths to revenue. Each successful introduction strengthens the network.

We believe Atrios is addressing a global opportunity as AI reshapes how marketing and sales dollars are spent. Marketplaces with strong incentives, built-in virality, and clear network effects are exactly the kinds of companies that can blitzscale, and Atrios fits that profile well.

We’re excited to partner with Taylor and the Atrios team as they build the future of outbound, powered by trust, networks, and AI.