We are thrilled to announce that TechNexus Venture Collaborative is participating in Letter AI’s $40M Series B, led by Battery Ventures. We are proud to continue backing co-founders Ali Akhtar and Armen Forget alongside Y Combinator, Lightbank, Stage 2 Capital, Northwestern Mutual Future Ventures and others as Letter AI redefines AI-native revenue enablement for the enterprise.
Our Initial Belief: The Broken Enablement Paradigm
When we first invested in Letter AI’s seed round alongside our corporate partner THOR Industries, the problem they were tackling was as massive as it was frustrating. Enterprise sales teams were drowning in fragmented tools, static playbooks, and outdated collateral. Reps were spending up to 20% of their week just searching for the right materials, and corporate enablement was largely a passive, disconnected exercise.
We believed that generative AI was the key to moving revenue enablement from a passive library to an active, real-time advantage. Ali and Armen, with their deep experience building enterprise AI SaaS, had the exact right vision: a unified, AI-native platform that integrates training, coaching, and content management into one seamless workflow.
The Validation: A Breakneck Pace of Execution
In the venture world, you rarely see a company move from a Series A to a Series B in just 120 days. But that is exactly what Letter AI has done.
Since the company’s $10.6M Series A just four months ago in October 2025, the team has executed with relentless speed. In the last year, Letter AI has expanded their customer base by 15x. Today, their platform is mission-critical for revenue teams across more than 30 countries at global enterprises like Lenovo, Adobe, Novo Nordisk, and Plaid.
But what truly validates this investment isn't just the logo velocity—it's the depth of customer love. Letter AI recently earned 21 badges in the G2 Winter 2026 reports, including Highest Momentum Leader in Sales Enablement, along with top marks for 'Users Most Likely to Recommend' and 'Best Support.' They are truly building a product that revenue teams actually want to use. As we've heard from enablement leaders, their platform has become so sticky that 'reps would riot' if it were taken away.
They have proven that when you build AI natively into the sales workflow—rather than bolting it onto legacy tools—enterprises will adopt it at scale. As a Venture Collaborative, we are particularly excited to see how large corporations are leveraging Letter AI to close deals faster and increase win rates by up to 30%.
The Next Horizon: Introducing Letter Compass
So, why double down now? Because the product evolution is accelerating.
Alongside this $40M raise, the team is launching Letter Compass. This new product bridges the final gap in sales execution by pulling enablement content, live CRM data, and customer interactions into a single view. It delivers real-time, deal-specific coaching and messaging directly into the flow of active opportunities. It’s no longer just about preparing a rep for a call; it’s about providing highly contextual, always-on intelligence the very moment a deal is happening.
This transitions Letter AI from a powerful content hub into a living intelligence layer that adapts to every buyer and every seller.
The Team Pulling It Off
None of this would be possible without exceptional leadership. Ali and Armen are the quintessential customer-obsessed founders. They have successfully transitioned from scrappy builders listening to early user feedback into seasoned executives scaling a global enterprise platform. Their ability to attract top-tier talent and world-class investors (welcoming Battery Ventures' Brandon Gleklen to the board alongside HubSpot's founding CRO Mark Roberge) is a testament to the culture they are building in Chicago and beyond.
What’s Next?
Letter AI is arming modern revenue teams with an unprecedented, AI-powered command center, and we are ecstatic to continue this journey with them as they scale their engineering, sales, and customer success teams globally.
They are growing incredibly fast and looking for top-tier talent to help build the world’s next generational sales tech company.
Want to be part of the future of revenue acceleration? Check out Letter AI’s open roles here.
Artificial Intelligence and Machine Learning • Letter AI