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Impinj, based in Seattle, Washington, develops and manufactures RAIN RFID technology, encompassing tag chips, reader chips, readers, gateways, antennas, and software, to enable businesses to wirelessly connect, track, and manage billions of everyday items. These solutions are deployed across diverse sectors including retail, supply chain, manufacturing, and healthcare, facilitating applications in inventory management, asset tracking, and supply chain optimization. The company reported $366.1 million in revenue in 2024 and maintains a workforce of 451 employees, having connected over 120 billion items worldwide. Impinj operates as a public entity, listed on NASDAQ under the ticker PI, serving partners who build Internet of Things solutions across global markets. The organization was founded in 2000 by Chris Diorio and Carver Mead, based on research from Caltech.
Impinj has raised $103.0M across 5 funding rounds.
Impinj has raised $103.0M in total across 5 funding rounds.
Impinj has raised $103.0M across 5 funding rounds. Most recently, it raised $21.0M Series U in July 2012.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jul 1, 2012 | $21M Series U | — | Founders' Co OP, Madrona Venture Group | Announced |
| Mar 1, 2007 | $19M Series E | — | Founders' Co OP, Madrona Venture Group, Solasta Ventures | Announced |
| Dec 1, 2005 | $27M Series D | — | Founders' Co OP, Madrona Venture Group | Announced |
| Jul 1, 2004 | $22M Series C | — | Founders' Co OP, Madrona Venture Group | Announced |
| May 1, 2002 | $14M Series B | — | Founders' Co OP, Madrona Venture Group | Announced |
Impinj has raised $103.0M in total across 5 funding rounds.
Impinj's investors include Founders' Co-op, Madrona Ventures, Solasta Ventures.
Impinj is a Seattle-based technology company that develops RAIN RFID platforms, including chips, readers, antennas, and software, to wirelessly connect everyday items like apparel, medical supplies, and auto parts to the Internet of Things (IoT).[1][2][3] It serves enterprises in retail, healthcare, manufacturing, supply chain, and logistics by solving inventory visibility, asset tracking, and automation challenges, enabling real-time data for efficiencies, waste reduction, and profitability.[3][4][5] With over 25 years of innovation, Impinj's platform supports billions of tagged items annually, powering solutions through a global partner ecosystem and recent advancements like Gen2X for enhanced performance, privacy, and new use cases.[2][4][8]
Impinj was founded in 2000 by Chris Diorio, a former student of Carver Mead at the California Institute of Technology, based on their research into impact-ionized hot-electron injection (the origin of the company name "Impinj").[1][2] Diorio, now CEO, envisioned expanding the internet to connect not just devices but every everyday item, starting with passive UHF RFID technology.[2] Early milestones included pioneering EPCglobal UHF Gen 2 products in 2006, securing Wal-Mart supplier contracts, and launching tools like the 2012 Store Performance Simulator for RFID profitability analysis.[1] From a small team, Impinj has grown to tag over a billion items weekly industry-wide, marking 25 years in 2025 with breakthroughs in supply chain traceability.[8]
Impinj stands out in the RAIN RFID market through these key strengths:
Impinj rides the boundless IoT wave, extending internet connectivity from cloud to physical items via RAIN RFID, addressing exploding demand for item-level traceability amid supply chain disruptions and sustainability pressures.[2][4][5] Timing aligns with regulatory scrutiny on efficiency and ESG, where RFID optimizes resources, cuts waste, and supports circular economies—tagging billions of items yearly for lifecycle management.[3][7][8] Market forces like e-commerce growth, labor shortages, and counterfeiting favor its low-power tech, influencing ecosystems by enabling partners to build scalable solutions in retail (e.g., Wal-Mart scale), healthcare, and logistics, while driving industry standards.[1][5]
Impinj is poised to dominate RAIN RFID expansion with Gen2X unlocking consumer/enterprise use cases like advanced anti-theft and privacy safeguards, potentially tagging trillions of items as IoT matures.[4][5] Trends in AI-driven analytics, sustainability mandates, and 5G/edge computing will amplify its platform, boosting adoption in automated supply chains and smart manufacturing. Its influence may evolve from RFID pioneer to IoT infrastructure leader, delivering trusted connectivity for a world where every item has a digital life—realizing the 2000 vision of boundless transformation.[2][8]
