Spara Raises $15M Seed to Power the Future of Inbound Sales with Multimodal AI
September 18, 2025
byFenoms Start-Up Research
Spara, a New York-based startup building AI-powered go-to-market infrastructure, has emerged from stealth with $15 million in seed funding. The round was led by Radical Ventures and Inspired Capital, with participation from XYZ Ventures, FJ Labs, Remarkable Ventures, and a network of strategic angels from OpenAI, Anthropic, and Google. The raise underscores growing investor conviction that the future of revenue growth will be defined by AI agents capable of handling high-value customer interactions.
Transforming Inbound Engagement
Spara’s platform is designed to solve one of the most overlooked bottlenecks in sales: inbound lead response. Despite being the warmest source of potential revenue, inbound leads often wait hours - sometimes days - for follow-up. By then, competitors may already have won the deal. Spara’s multimodal AI agents address this with real-time engagement across chat, email, and voice, ensuring prospects are instantly qualified, enriched with contextual data, and handed off to human sellers at the right stage.
The platform integrates seamlessly with CRMs, calendars, and sales workflows, creating an automated pipeline that doesn’t just capture interest but converts it into revenue. Security and reliability remain central, with SOC2 and GDPR compliance, hallucination safeguards, and transparent audit trails that make the AI trustworthy at enterprise scale.
Why Investors See a Big Market
Backing from Radical Ventures and Inspired Capital reflects the scale of the opportunity. Companies invest millions in outbound campaigns, yet lose high-intent inbound buyers due to delays and inefficiencies. Spara flips this equation, turning inbound into the most predictable growth lever. Early traction with customers such as Rho, MarketMan, and TinyMCE signals that enterprises are eager for solutions that protect and accelerate revenue at the top of the funnel.
What stands out is that Spara didn’t just build another generic AI chatbot. They began with the operational realities of enterprise sales - understanding which qualification signals matter most, how buyers respond differently in chat versus voice, and when to hand off to human AEs. This operational grounding is what gives the technology commercial weight. And here lies a powerful lesson for founders: the success of enterprise AI isn’t about how advanced the model is, but how deeply the product fits the workflows and trust models of the buyer.
By embedding trust and accountability into every workflow, Spara demonstrates a principle that applies to all startups: product-market fit isn’t just about solving a pain point - it’s about aligning with the economics and trust expectations of your customer. Their product isn’t measured by conversations held or AI usage hours; it’s measured by meetings booked, pipeline created, and revenue generated. That clarity of outcome is why investors leaned in. For founders, the insight is striking - the fastest way to adoption isn’t building a tool that replaces people, but one that accelerates them. Spara lets AI qualify, schedule, and follow up, while reserving negotiation, strategy, and closing for humans. It’s a division of labor that builds confidence, creates real efficiency, and keeps buyers engaged.
How the Seed Funding Will Be Deployed
With this fresh $15M, Spara plans to expand its engineering and sales teams, double down on AI research for multimodal capabilities, and build more integrations into enterprise revenue stacks. Additional investments will go into compliance, scalability, and customer success to support large-scale deployments.
A Shift in the Go-to-Market Paradigm
The story of Spara is less about AI for novelty and more about AI for inevitability. Inbound engagement has long been a weak point in sales organizations, and Spara’s approach reframes it as a source of competitive advantage. With automation covering qualification and scheduling, companies can finally meet the “speed-to-lead” demands of modern buyers while ensuring sales teams spend their energy where it counts.
As Spara scales, it could signal a broader shift in enterprise AI adoption: tools that don’t just enhance productivity but directly drive revenue. In that sense, the $15M seed isn’t only a bet on Spara - it’s a bet on inbound becoming the next great growth engine for enterprises worldwide.