Sifflet, a leading data observability platform, announced it has raised $18 million in funding from existing shareholders EQT Ventures and Mangrove Capital Partners, with Capmont Technology joining as a new investor.
What Sifflet does: Founded in 2021, Sifflet has established itself as a leader in the space since the official product launch in 2023, with a strong and differentiated approach to Data Observability that leverages both technical and business context in monitoring. This new investment will significantly accelerate the company’s growth, enabling it to expand its North American presence and meet surging demand, while also driving product innovation.
Over the past year, the company has tripled its customer base and revenue. Last year, a roster of customers signed with Sifflet, including St-Gobain, Penguin Random House, and Euronext, alongside many others.
New leaders: To support this next growth phase, Sifflet has welcomed two seasoned industry leaders: Rémi Bastien (ex-Content Square) joins to scale global operations and Romain Doutriaux (ex-Pigment) will lead pipe gen efforts. And they will help accelerate Sifflet’s go-to-market strategy and deepen its impact across enterprise data teams.
How the funding will be used: With continued funding, a strengthened leadership team, and growing global demand, Sifflet is poised to deliver its most ambitious product milestone yet: the rollout of its data observability agents, coming this fall.
KEY QUOTES:
“Sifflet has become an essential part of how we ensure data reliability across the business, not just within engineering. What sets them apart is their ability to combine technical depth with real-world usability. Their AI-native approach doesn’t just detect issues, it gives our team the context to act faster and smarter. That’s game-changing at our scale.”
Chief Data Officer of Penguin RandomHouse Pete Williams
“At Sifflet, we’ve always believed that data quality is both a technical and organizational challenge – and the market is now confirming that belief. With this new capital, we’re doubling down on product innovation, AI-native capabilities, and North American expansion to help enterprises unlock trusted, actionable data at scale.”
Salma Bakouk, co-founder and CEO of Sifflet
“Backing a company once is a bet. Backing a company three times is conviction. What Sifflet has accomplished in the past year — tripling their customer base and revenue — is extraordinary. The team is not just creating a new product but defining a new standard for how data-driven companies operate.”
Yannick Oswald from Mangrove Capital Partners
“We invest in category-defining companies built on clarity of vision and execution. Sifflet stood out immediately: a sharp team solving a complex, enterprise-critical problem with both speed and precision. As AI adoption accelerates, the need for trusted, usable data becomes non-negotiable. We’re excited to support Sifflet as they scale this capability globally.”
Torsten Kreindl, founding partner at Capmont Technology
“We’ve seen Sifflet grow from a compelling vision into a platform that’s setting a new standard in data observability. The team’s ability to pair deep technical innovation with commercial traction—especially as they expand into North America—is impressive. We’re proud to continue supporting them in this next chapter.”
EQT Ventures partner Carl Svantesson
