Merge

Integrations are the quiet tax on B2B software. Every new customer asks for one. Every product roadmap bends around them. And behind the scenes, engineering teams spend countless hours stitching together fragile connections just so software can speak to the systems companies already rely on. That friction is exactly what Merge set out to eliminate. Founded in 2020 by Shensi Ding, Co Founder and CEO, alongside Gil Feig, the company emerged from a simple but stubborn reality both founders had experienced firsthand. Building integrations was not innovation. It was repetition. And repetition at scale becomes infrastructure.

Merge’s answer is a unified API designed to let developers integrate once and unlock hundreds of customer facing integrations across the tools companies already live inside every day. HRIS systems. Payroll. Applicant tracking. CRM. Accounting platforms. Ticketing tools. Project management software. File storage. Instead of engineering teams rebuilding the same bridges over and over, Merge normalizes the schemas, manages authentication, handles syncing, and keeps the pipes flowing so products can read and write data across entire categories through a single integration layer.

The market noticed. Early momentum turned into a $15M Series A led by Addition with participation from NEA, followed by a $55M Series B led by Accel in 2022 with NEA and Addition doubling down. That brought total funding to $75M. In the 12 months after the Series A, annual recurring revenue expanded 26x. The signal was clear. When thousands of companies start trusting a platform to run their integrations, you are no longer building features. You are operating infrastructure.

Now the next act is unfolding where software meets autonomy. Merge is leaning into infrastructure for AI agents, giving teams a way to let agents interact with business tools without creating security nightmares or reliability headaches. Agents can call actions across systems while Merge handles governance, observability, and the operational discipline required when machines start touching real company data. The future is not just software talking to software. It is software thinking while it talks. 📡

Inside the company, the focus is deeply technical and unapologetically product driven. Teams across San Francisco, New York City, and Berlin work close to the infrastructure layer where integrations either hold or break under real production pressure. Engineers wrestle with APIs, schemas, sync reliability, and scale. Product leaders obsess over developer experience. Customer facing teams translate complex integration problems into outcomes that unblock sales cycles and reduce churn.

That combination is why Merge continues to attract builders who prefer hard problems over easy launches. Engineers who enjoy mapping messy external APIs into clean data models. Product thinkers who want to shape platforms instead of shipping surface features. Operators who understand that the quiet systems underneath the software economy are often the ones with the deepest leverage.

Merge is still expanding the surface area of what it connects and how AI agents interact with the tools companies depend on. The companies that get integrations right tend to disappear into the background while everything else runs smoothly. If you are building products that need to connect, or you are the kind of engineer who likes constructing the rails the rest of the industry rides on, Merge is a name worth keeping close.