Epsagon founders raise $34M seed round for Harmony, an AI agent platform built inside Slack and Teams

Nitzan Shapira and Ran Ribenzaft, who sold Epsagon to Cisco for roughly $500 million, raised a $34 million seed round led by Lightspeed Venture Partners for Harmony, an AI agent platform that operates inside Slack and Microsoft Teams to automate employee service tasks like IT tickets and HR queries. The company claims over 100 prebuilt agents and cites 48% no-touch resolution by week two and 75% ticket deflection at month three, though these are company-published figures. Early customers include eToro, Cyera, n8n, and Kith.

Nitzan Shapira and Ran Ribenzaft sold Epsagon to Cisco for roughly $500 million. Now they're back with Harmony, a Slack and Teams AI agent startup with a $34 million seed round and a cap table built on founder reputation. A $34 million seed round tells you investors aren't waiting for the spreadsheet. Harmony emerged from stealth on July 28 with Lightspeed Venture Partners leading the round, joined by Hitachi Ventures, Fin Capital, Mercer Ventures, Operator Partners, the Wiz founding team, and Ofir Ehrlich, the co-founder and CEO of Eon.io. That's a lot of money. Business Insider reported that Nitzan Shapira and Ran Ribenzaft previously sold Epsagon to Cisco for $500 million and are now using Harmony to take on employee service work inside Slack and Microsoft Teams. Cisco's 2021 acquisition of Epsagon was also reported by CTech at roughly the same figure. The old company watched cloud systems. The new one wants to act on the human work sitting above them. That distinction matters. Epsagon helped developers understand what was breaking across microservices and serverless systems. Harmony is pointed at IT tickets, HR questions, procurement requests, finance queries, legal approvals, onboarding, app access, password resets, and the tedious requests that fill internal queues. You don't ask employees to open another portal. You meet them where they're already typing. Harmony calls the core of the product an organizational context graph. The idea is straightforward enough: the agent needs to know who you are, what role you have, what permissions apply, what device you're using, and what work history sits behind the request. Without that, you've got a chatbot. With it, the company argues, you've got software that can resolve a request instead of just replying to one. The company says it has more than 100 prebuilt agents that can be deployed in days, not months. Its own AI ITSM page cites 48% no-touch resolution by week two and 75% ticket deflection sustained at month three. Keep your eyes open here. Those are company-published numbers, not independent benchmarks. But they're specific enough to make the claim testable, and testable is where enterprise software either earns trust or loses it. Early customers named by Business Insider and Harmony include eToro, Cyera, n8n, and Kith. Harmony has also said the team is split mainly between Israel and New York, with Nitzan Shapira writing on LinkedIn last week that the company reached 50 employees in its first year. Business Insider put the figure at 60. Either way, this is still a small team for a product trying to touch IT, HR, finance, procurement, DevOps, security, and legal. That's the risk. The market is already moving Harmony isn't walking into an empty category. ServiceNow owns a large part of enterprise service management, and Atlassian's Jira Service Management has a real position with technical teams. Once a company commits to either, it goes deep - the integrations compound, the workflows multiply, and switching costs climb fast. Both also ask employees and admins to live inside their own platforms. Harmony's pitch is simpler: the workflow should come to the employee, not the other way around. Viktor shows how crowded this can get quickly. Fortune reported in May that Viktor raised a $75 million Series A led by Accel to put an AI coworker inside Slack and Microsoft Teams. Its founders, Fryderyk Wiatrowski and Peter Albert, said the product had reached a $15 million annualized revenue run rate and more than 2,000 organizations shortly after public launch. You don't need to squint to see the overlap. Slack and Teams are becoming the front door for a lot of enterprise AI products at once. Microsoft is the heavier problem. Copilot is already inside Teams, Office, and the broader Microsoft stack, and Salesforce has its own agent push around Slack through Agentforce. A startup can still win against platforms, but it has to be sharper than the bundled option. Context matters more than speed. A real ability to close tickets without creating new security and compliance problems matters most of all. Founder reputation is doing real work Frankly, the most interesting investor in the announcement isn't the fund. It's Assaf Rappaport. CTech reported in June that the Wiz co-founder had participated in at least 10 disclosed investments in 2026, after Google's roughly $32 billion deal for Wiz made him one of Israel's most closely watched enterprise software angels. His involvement doesn't prove Harmony will work. It does tell you the founders are being judged by people who know what durable infrastructure companies look like from the inside. Lightspeed also has history here. The firm backed Epsagon before Cisco bought it, and now it's leading Harmony's seed. That kind of repeat backing is never just about a deck. Investors remember whether founders shipped, hired, sold, and handled pressure when the company stopped being theoretical. The money will go toward engineering and sales hiring, according to Business Insider. The harder work is more specific: getting through enterprise procurement, proving the agents can operate safely across sensitive systems - and doing both without letting strong early deflection rates collapse when Harmony moves from friendly early customers into large, messy organisations. A seed round can buy attention. It can't buy that proof. Also read: Convertible Note Discount and Cap Explained: Who Actually Wins https://startupfortune.com/convertible-note-discount-and-cap-explained-who-actually-wins/ • Act Security raises $60M and exits stealth with a platform built to stop AI agents from inheriting dangerous cloud permissions https://startupfortune.com/act-security-raises-60m-and-exits-stealth-with-a-platform-built-to-stop-ai-agents-from-inheriting-dangerous-cloud-permissions/ • Cyera acquires Oasis Security for $1 billion to lock down the logins of AI agents https://startupfortune.com/cyera-acquires-oasis-security-for-1-billion-to-lock-down-the-logins-of-ai-agents/