Sigfox USA’s filing for Chapter 7 bankruptcy protection, owing almost $150m in unsecured debt, followed rapidly from the earlier receivership of Sigfox SA in France, after a court application for ‘redressement judiciaire’ on January 26 2022. Although the two events were not legally connected, the USA bankruptcy was the direct consequence of Sigfox SA terminating the contracts of 45 US staff. This brings to a head the unravelling of the French-born Sigfox group after an ambitious attempt to become a major global player in wireless IoT connectivity that saw its eponymous technology ranked consistently among the big four in low power WAN (LPWAN), along with the two cellular options, NB-IoT and LTE-M, plus LoRa. The company’s operations and technology will now be…