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Klaus, based in Tallinn, Estonia, develops AI-powered software for quality assurance in customer service, analyzing 100% of text and audio interactions to identify outliers and improve agent performance. The platform helps enterprises enhance customer care centers by automating reviews, serving hundreds of global enterprise customers such as Glovo, SoundCloud, and Epic Games. Klaus raised $19.3 million in total funding, with investors Creandum, Acton Capital, and Global Founders Capital. In February 2024, Zendesk acquired Klaus for an undisclosed amount, following a €12 million Series A in 2022 and a $1.9 million seed round in 2019. The company was founded in 2017 by Kair Käsper, Martin Kõiva, and Egon Sale. Its business model centers on saaS model charging monthly or yearly subscription fees based on the number of connected users.
Klaus has raised $24.7M across 5 funding rounds.
Klaus has raised $24.7M in total across 5 funding rounds.
Klaus is an AI-powered quality management platform for customer support teams, designed to automate conversation reviews and improve service quality. It integrates with helpdesk tools like Zendesk, Intercom, and Salesforce Service Cloud to analyze 100% of customer interactions, identify patterns, predict issues, and provide actionable feedback, solving the problem of manual QA that typically covers only 5% of conversations.[2][3][4] Klaus serves customer experience (CX) teams at companies of all sizes, from startups like WordPress and Soundcloud to enterprises like Trivago, enabling faster feedback loops and reducing review time by 70%.[2][4] Acquired by Zendesk in October 2025, it now bolsters Zendesk's workforce engagement management (WEM) portfolio, with strong growth evidenced by $16.9M in total funding, including a $11.5M round.[2][3]
Founded in Tallinn, Estonia, Klaus emerged from the need to streamline quality assurance for large support teams handling thousands of interactions. Co-founder Kair Käsper highlighted how accelerating customer expectations demand AI to match engagement speed, evolving from a SaaS startup focused on API integrations for feedback at scale.[2][3] Early traction came via connections to 17 helpdesk platforms, attracting users like Wistia and Chargebee; a $5.4M funding round led by Global Founders Capital (with Creandum and Icebreaker) fueled development.[3][4] Pivotal was Zendesk's acquisition in October 2025, integrating Klaus into a CX leader's ecosystem after prior funding totaling $16.9M across two rounds.[2][3]
(Note: Klaus IT Solutions at klausit.com is a separate Indian firm offering automotive IT services and staffing, unrelated to this SaaS company.[1][5])
Klaus rides the AI-driven CX transformation wave, where rising interaction volumes demand automated WEM to meet customer expectations amid post-pandemic digital shifts.[2] Its timing aligns with Zendesk's AI push, enhancing platforms as businesses scale support without proportional QA staff—market forces like AI adoption in service (e.g., AutoQA for full coverage) favor it.[2][3] Klaus influences the ecosystem by setting a new QA category standard, enabling data-driven improvements that boost agent performance and business processes, as noted by analysts like The Futurum Group's CEO.[2] Post-acquisition, it amplifies Zendesk's competitive edge in a $50B+ CX market.
With Zendesk's resources, Klaus will likely expand AI capabilities, targeting deeper WEM integrations and predictive analytics for proactive CX. Trends like multimodal AI and real-time agent coaching will shape it, potentially evolving into a full-spectrum intelligence layer for support ops. Its influence grows as AI becomes table stakes for service excellence, empowering more teams to deliver reputation-boosting experiences—reinforcing Klaus as the QA pioneer that scales quality effortlessly.[2]
Klaus has raised $24.7M in total across 5 funding rounds.
Klaus's investors include Acton Capital Partners, AngelList, CoinFund, Creandum, Dawn Capital, Fund Fellow Founders, Global Founders Capital, Icebreaker.vc, Lowercarbon Capital, Mosaic Ventures, Partech Ventures, Peak.
Klaus has raised $24.7M across 5 funding rounds. Most recently, it raised $12.0M Series A in September 2022.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Sep 1, 2022 | $12M Series A | Acton Capital Partners | AngelList, CoinFund, Creandum, Dawn Capital, Fund Fellow Founders, Global Founders Capital, Icebreaker.vc, Lowercarbon Capital, Mosaic Ventures, Partech Ventures, Peak, Plug & Play Ventures, Point Nine Capital, Weekend Fund, Aleksander Leonard Larsen, Andreas EHN, Jeremy YAP, Trevor Mcfedries | Announced |
| Sep 24, 2020 | $5.4M Venture Round | Philippe Klintefelt Collet | Creandum, Icebreaker.vc | Announced |
| Sep 1, 2020 | $5M Seed | — | AngelList, CoinFund, Creandum, Dawn Capital, Global Founders Capital, Icebreaker.vc, Lowercarbon Capital, Mosaic Ventures, Point Nine Capital, Weekend Fund, Aleksander Leonard Larsen, Andreas EHN, Jeremy YAP, Martin Tajur, Martin Villig, Ragnar Sass, Trevor Mcfedries | Announced |
| Jul 1, 2019 | $2M Seed | Creandum | Icebreaker.vc, Mosaic Ventures, Point Nine Capital, Andreas EHN, Jeremy YAP | Announced |
| May 1, 2018 | $290K Seed | — | Icebreaker.vc, Martin Tajur, Martin Villig, Ragnar Sass | Announced |