# ACEINNA

> ACEINNA is a Massachusetts-based MEMS sensor company building high-performance, low-cost inertial measurement units (IMUs), GNSS/RTK precision-navigation systems, current sensors, and flow sensors. Spun out of MEMSIC in 2017 with a roughly $50M investment, ACEINNA is best known for its open-source OpenIMU platform and for shipping centimeter-accurate positioning solutions for autonomous vehicles and ADAS at a fraction of the price of legacy systems.

- **Founded:** 2017
- **Headquarters:** Tewksbury, Massachusetts, United States
- **Founders:** Yang Zhao (Founder, Chairman & CEO)
- **Team size:** Approximately 20-50 employees
- **Products:** OpenIMU, INS401, OpenRTK330L / OpenRTK, INS1000, IMU383 / IMU family
- **Notable:** Spun out of MEMSIC in 2017 with roughly $50M in funding - cited as one of the largest MEMS sensor fundings of the year., OpenIMU platform won the Frost & Sullivan 2018 Global New Product Innovation Award in the IMU industry., Shipped a ~$150 high-precision RTK navigation solution positioned against $10,000-plus legacy systems.

## Products & services

- **OpenIMU** — Open-source, high-performance inertial measurement unit platform with publicly available source code, an embedded dev environment (Aceinna Navigation Studio), a VS Code extension, and a ROS driver for robotics navigation.
- **INS401** — Inertial Navigation System with RTK-enabled dual-frequency GNSS receiver and triple-redundant inertial sensors, delivering cm-level accuracy for ADAS and autonomous vehicles at under $500.
- **OpenRTK330L / OpenRTK** — Compact RTK/INS positioning module offering centimeter-level accuracy around the $150 price point, aimed at replacing bulky $10,000-plus systems.
- **INS1000** — GNSS/INS real-time kinematic navigation system for high-precision positioning applications.
- **IMU383 / IMU family** — Sealed, rugged industrial-grade inertial measurement units for navigation, stabilization, and control.
- **Current Sensors** — Multi-MHz bandwidth Anisotropic Magneto-Resistance (AMR) based electric current sensors in a single-chip form factor for power conversion and EV charging.
- **Flow Sensors** — Thermal-MEMS flow sensors leveraging mass-deployed sensing expertise, used in HVAC, medical, and industrial equipment.

## Achievements

- Spun out of MEMSIC in 2017 with roughly $50M in funding - cited as one of the largest MEMS sensor fundings of the year.
- OpenIMU platform won the Frost & Sullivan 2018 Global New Product Innovation Award in the IMU industry.
- Shipped a ~$150 high-precision RTK navigation solution positioned against $10,000-plus legacy systems.
- Launched the INS401 cm-level INS+GNSS/RTK turnkey solution for AVs at under $500 (CES 2022).
- Released an OpenIMU ROS driver to accelerate robotic navigation development.
- Builds on a MEMSIC heritage of sensors in 600M+ phones and 100,000+ aircraft navigation units.

## Latest updates

- **2022-01** — Announced the INS401 INS and GNSS/RTK turnkey solution for ADAS and autonomous-vehicle precise positioning at CES 2022.
- **2020-09** — Launched the OpenIMU ROS driver for robotic navigation development.
- **2020-04** — Began shipping a ~$150 high-precision navigation solution for autonomous vehicles.
- **2018-01** — Finalized a roughly $50M start-up investment from founders and IDG Capital.

## Links

- Website: https://www.aceinna.com
- LinkedIn: https://www.linkedin.com/company/aceinna
- Twitter/X: https://twitter.com/MEMSsensortech
- GitHub: https://github.com/Aceinna
- YouTube: https://www.youtube.com/channel/UCwZQOW94N9KJ15Kn9At_TjQ
- Facebook: https://www.facebook.com/aceinna/

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Profile page: https://yespress.io/aceinna
Published by YesPress — https://yespress.io
Last updated: 2026-06-16