We're building the sync layer of the internet

CloudSync started with a simple question: why is keeping data in sync across tools still so hard? We're here to fix that.

Our story

From hack week to hyper-growth

In 2024, three infrastructure engineers at a fast-growing startup spent 60% of their time building and maintaining data sync pipelines. Every new tool meant another integration to build, another failure mode to handle, another 3 AM PagerDuty alert.

During a hack week, they built a prototype: a universal sync engine that could connect any two services with a single API call. The prototype worked so well that other teams started using it within hours.

CloudSync was born. Today, we process over 500 million file syncs daily for 10,000+ companies, from two-person startups to Fortune 500 enterprises. And we're just getting started.

Our journey

2024 Q1

The hack week

Three engineers build a universal sync prototype in 48 hours.

2024 Q3

Y Combinator W24

Accepted into YC. 1,000 teams on the waitlist before launch.

2025 Q1

Series A

$18M raised from Sequoia and Accel to scale infrastructure.

2025 Q3

SOC 2 certified

Enterprise-ready with SOC 2 Type II, GDPR, and HIPAA compliance.

2026

10K+ companies

500M+ daily file syncs. 200+ integrations. 99.99% uptime.

Our values

Reliability First

We obsess over uptime. 99.99% isn't a marketing number — it's our commitment. Every system is designed for failure, so the whole never fails.

Developer Love

We build tools we'd want to use ourselves. Clear docs, intuitive APIs, and SDKs that feel native. If it's not delightful, it's not done.

Radical Transparency

Public status page, open incident reports, transparent pricing. We believe trust is earned through honesty, not marketing.

Meet the team

Kai Nakamura

CEO & Co-founder

Ex-Stripe infrastructure. Built payment sync handling 1B+ events/day.

Priya Sharma

CTO & Co-founder

Distributed systems PhD. Previously at Google Cloud, built Spanner APIs.

Leo Kim

Head of Product

Product lead from Notion. Obsessed with developer experience and clean APIs.

Zara Ahmed

Head of Engineering

Staff SRE from Datadog. Built monitoring infrastructure for 100K+ hosts.

Backed by

Sequoia Accel Y Combinator

We're hiring

Remote-first, async culture. Build infrastructure used by thousands of companies. Competitive comp + meaningful equity.

View Open Positions →