Letter AI has raised $10.6 million in Series A funding to enhance its AI-driven platform, which has seen its customer base grow fifteenfold over the past year.
Letter AI has successfully secured $10.6 million in Series A funding aimed at expanding its innovative AI-driven platform. This platform is designed to assist revenue teams in improving their performance through smarter content, personalized training, and real-time coaching tools.
The funding round was spearheaded by Stage 2 Capital, with additional support from Lightbank, Y Combinator, Formus, Northwestern Mutual Future Ventures, Mangusta, and several other investors.
As part of this investment deal, Mark Roberge, co-founder and managing director at Stage 2 Capital and the founding Chief Revenue Officer of HubSpot, will join Letter AI’s board of directors.
In a blog post announcing the funding, Letter AI revealed that its customer base has expanded an impressive fifteenfold over the past year. Major clients such as Lenovo, Adobe, Novo Nordisk, Plaid, Zip, Kong, and SolarWinds have adopted the platform to enhance their sales enablement strategies.
Reflecting on the past year, the company emphasized its mission to help go-to-market teams accelerate their processes and close deals more effectively. Two years ago, Letter AI launched its AI-native sales training and coaching platform, which features advanced roleplays and tailored learning paths. This offering quickly gained traction among customers.
Building on this success, the startup has introduced an AI-powered content hub that allows revenue teams to create, manage, and share materials more efficiently. The platform now includes features such as automated tagging, metadata management, translations, and content generation, all enhanced by personalized AI agents that can surface information instantly across platforms like Slack, Microsoft Teams, and the app itself.
Additionally, Letter AI has rolled out interactive sales rooms equipped with embedded AI agents to maintain buyer engagement throughout the deal process. The company has also implemented RFP automation capable of responding to over 80% of inquiries, saving teams hundreds of hours in the process. Currently, its tools support more than 20 languages, highlighting its commitment to global scalability.
Looking to the future, Letter AI aims to redefine sales enablement by transforming it from a passive process into one that is proactive, personalized, and fast-moving, all powered by a single, AI-native platform.
“When we speak with enablement leaders and CROs about their biggest pain points before using Letter AI, we consistently hear the same challenges: enablement is reactive, generic, and slow. To put it more simply, enablement is passive. We are on a mission to make enablement active—that is, proactive, personalized, and high velocity. All delivered in a unified, deeply integrated platform—not dozens of point solutions that fail to communicate with each other,” the company stated in their blog post.
Letter AI was founded by Ali Akhtar and Armen Forget, who bring extensive experience from leading roles in product and engineering at companies such as Samsara, McKinsey, and project44.
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