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| 00:07:7C | Westermo Teleindustri AB | Westermo Network Technologies AB | 9 Jan 2019 |
| 00:11:B4 | Westermo Teleindustri AB | Westermo Network Technologies AB | 9 Jan 2019 |
| 00:18:36 | Reliance Electric Limited | REJ Co.,Ltd | 10 Jan 2019 |
| 70:B3:D5:62:8 | MECT S.R.L. | MECT SRL | 10 Jan 2019 |
| CC:37:AB | Edgecore Networks Corportation | Edgecore Networks Corporation | 11 Jan 2019 |
| 00:19:8F | Alcatel Bell N.V. | Nokia Bell N.V. | 19 Jan 2019 |
| 00:03:12 | TR-Systemtechnik GmbH | TRsystems GmbH | 26 Jan 2019 |
| 00:22:AF | Safety Vision | Safety Vision, LLC | 26 Jan 2019 |
| 00:50:C2:C7:C | Scienlab Electronic Systems GmbH | Keysight Technologies Inc. | 26 Jan 2019 |
| 00:22:89 | Optosecurity Inc. | Vandelrande APC inc. | 31 Jan 2019 |
| E8:A4:C1 | Deep Sea Electronics PLC | Deep Sea Electronics Ltd | 8 Feb 2019 |
| 00:50:C2:06:5 | Clever Devices, Ltd. | Clever Devices | 21 Feb 2019 |
| 00:0C:6C | Elgato Systems LLC | Corsair Memory, Inc. | 28 Feb 2019 |
| 00:50:C2:FF:9 | Penttech AB | AVA Monitoring AB | 28 Feb 2019 |
| 00:1F:53 | GEMAC Gesellschaft für Mikroelektronikanwendung Chemnitz mbH | GEMAC Chemnitz GmbH | 1 Mar 2019 |
| 00:40:51 | GRACILIS, INC. | Garbee and Garbee | 1 Mar 2019 |
| 00:08:5D | Aastra | Mitel Corporation | 9 Mar 2019 |
| 00:0C:6C | Corsair Memory, Inc. | Eve Systems GmbH | 19 Mar 2019 |
| 6C:D1:46 | Smartek d.o.o. | FRAMOS GmbH | 19 Mar 2019 |
| 80:7B:1E | Corsair Components | Corsair Memory, Inc. | 19 Mar 2019 |
| 08:47:D0 | Nokia Shanghai Bell Co. Ltd.） | Nokia Shanghai Bell Co., Ltd. | 20 Mar 2019 |
| 08:9C:86 | Nokia Shanghai Bell Co. Ltd.） | Nokia Shanghai Bell Co., Ltd. | 20 Mar 2019 |
| 88:B3:62 | Nokia Shanghai Bell Co. Ltd.） | Nokia Shanghai Bell Co., Ltd. | 20 Mar 2019 |
| 00:04:C4 | Allen & Heath Limited | Audiotonix Group Limited | 27 Mar 2019 |
| 00:0C:FF | MRO-TEK LIMITED | MRO-TEK Realty Limited | 30 Mar 2019 |
| 00:80:8C | NetScout Systems, Inc. | NetAlly | 30 Mar 2019 |
| 00:A0:0E | NetScout Systems, Inc. | NetAlly | 30 Mar 2019 |
| 00:C0:17 | NetScout Systems, Inc. | NetAlly | 30 Mar 2019 |
| 04:9F:81 | Netscout Systems, Inc. | NetAlly | 30 Mar 2019 |
| D8:E7:2B | NetScout Systems, Inc. | NetAlly | 30 Mar 2019 |
| 00:50:C2:B6:6 | Deuta-Werke GmbH | 8185 | 11 Apr 2019 |
| 00:07:89 | DONGWON SYSTEMS | Allradio Co., Ltd | 27 Apr 2019 |
| BC:C3:1B | Kygo Life AS | Kygo Life A | 8 May 2019 |
| D4:F0:27 | Navetas Energy Management | Trust Power Ltd. | 11 May 2019 |
| 00:04:AB | Comverse Network Systems, Inc. | Mavenir Inc. | 15 May 2019 |
| E0:67:B3 | C-Data Technology Co., Ltd | Shenzhen C-Data Technology Co., Ltd | 15 May 2019 |
| B4:A2:EB:C | ASSA ABLOY Korea Co., Ltd. iRevo | Shanghai Shenou Communication Equipment Co., Ltd. | 21 May 2019 |
| 00:0B:40 | Oclaro | Cambridge Industries Group (CIG) | 12 Jun 2019 |
| 70:B3:D5:F0:A | Neuyronal Innovation Control S.L. | Neuronal Innovation Control S.L. | 12 Jun 2019 |
| D4:3D:39 | FCI. Inc | Dialog Semiconductor | 14 Jun 2019 |
| 34:04:9E:1 | Connected IO Inc. | Connected IO | 20 Jun 2019 |
| 00:1D:8D | Raytek GmbH | Fluke Process Instruments GmbH | 26 Jun 2019 |
| 00:00:6B | SILICON GRAPHICS INC./MIPS | Silicon Graphics | 1 Jul 2019 |
| 00:07:58 | Dragonwave | DragonWave Inc. | 1 Jul 2019 |
| 00:25:A7 | Comverge, Inc. | itron | 1 Jul 2019 |
| 08:00:69 | SILICON GRAPHICS INC. | Silicon Graphics | 1 Jul 2019 |
| 54:21:60 | Resolution Products | Alula | 9 Jul 2019 |
| 00:C0:B6 | Overland Storage, Inc. | HVE, Inc. | 10 Jul 2019 |
| F0:26:4C | Dr. Sigrist AG | Sigrist-Photometer AG | 24 Jul 2019 |
| E0:AA:B0 | GENERAL VISION ELECTRONICS CO. LTD. | Suntaii Enterprise Co., Ltd. | 2 Aug 2019 |
| 00:08:29 | Aval Nagasaki Corporation | TOKYO ELECTRON DEVICE NAGASAKI LIMITED | 8 Aug 2019 |
| 00:30:92 | ModuNORM GmbH | Kontron Electronics AG | 8 Aug 2019 |
| 70:B3:D5:E3:C | Independent Project Engineering Lmited | Densitron Technologies Ltd | 9 Aug 2019 |
| 5C:71:0D | Cisco Systems | Cisco Systems, Inc | 10 Aug 2019 |
| 70:B3:D5:38:A | Innovative Advantage | KSE GmbH | 10 Aug 2019 |
| 00:50:C2:A7:E | Independent Project Engineering Ltd | Densitron Technologies Ltd | 14 Aug 2019 |
| E0:AA:B0 | Suntaii Enterprise Co., Ltd. | SUNTAILI ENTERPRISE CO. LTD, | 14 Aug 2019 |
| 00:24:87 | Blackboard Inc. | Transact Campus, Inc. | 15 Aug 2019 |
| 00:30:56 | Beck IPC GmbH | HMS Industrial Networks | 21 Aug 2019 |
| 00:03:CB | Nippon Systems Development Co., Ltd. | SystemGear Co., Ltd. | 23 Aug 2019 |
| B4:E9:A3 | port GmbH | port industrial automation GmbH | 25 Aug 2019 |
| 70:B3:D5:36:3 | Contec DTx | Contec Americas Inc. | 29 Aug 2019 |
| 70:B3:D5:39:2 | Contec DTx | Contec Americas Inc. | 29 Aug 2019 |
| 70:B3:D5:8B:7 | Contec DTx | Contec Americas Inc. | 29 Aug 2019 |
| 70:B3:D5:D1:0 | Contec DTx | Contec Americas Inc. | 29 Aug 2019 |
| 00:50:C2:AC:C | StockerYale | ProPhotonix | 4 Sep 2019 |
| 70:B3:D5:9B:8 | Loma Systems | Loma Systems s.r.o. | 8 Sep 2019 |
| 1C:FD:08:9 | LABEL | Cobham Slip Rings | 10 Sep 2019 |
| 00:50:C2:88:6 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 00:50:C2:DD:6 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 70:B3:D5:30:4 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 70:B3:D5:9D:4 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 70:B3:D5:A0:5 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 70:B3:D5:AE:2 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| 70:B3:D5:ED:8 | Transas Marine Limited | Wartsila Voyage Limited | 18 Sep 2019 |
| AC:BD:0B | IMAC CO.,LTD | Leimac Ltd. | 18 Sep 2019 |
| 00:23:E6 | Pirkus, Inc. | Innovation Farm, Inc. | 21 Sep 2019 |
| 00:22:A0 | Delphi Corporation | APTIV SERVICES US, LLC | 25 Sep 2019 |
| 5C:2A:EF | Open Access Pty Ltd | r2p Asia-Pacific Pty Ltd | 29 Sep 2019 |
| 8C:E3:8E | Toshiba Memory Corporation | Kioxia Corporation | 2 Oct 2019 |
| 00:50:C2:24:D | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 00:50:C2:AB:5 | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 00:50:C2:EA:9 | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 40:D8:55:0C:8 | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 70:B3:D5:27:E | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 70:B3:D5:74:A | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 70:B3:D5:BB:2 | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 70:B3:D5:D6:4 | Mettler Toledo Hi Speed | Mettler Toledo | 3 Oct 2019 |
| 00:0E:A4 | Certance Inc. | Quantum Corp. | 4 Oct 2019 |
| 00:50:84 | ATL PRODUCTS | Quantum Corp. | 4 Oct 2019 |
| 00:10:38 | MICRO RESEARCH INSTITUTE, INC. | Micro Research Ltd. | 5 Oct 2019 |
| 00:0D:0A | Projectiondesign as | Barco Projection Systems NV | 8 Oct 2019 |
| CC:59:3E | TOUMAZ LTD | Sensium Healthcare Limited | 10 Oct 2019 |
| 00:1B:B0 | BHARAT ELECTRONICS | Bharat Electronics Limited | 11 Oct 2019 |
| 00:0C:E6 | Meru Networks Inc | Fortinet Inc. | 17 Oct 2019 |
| 00:0C:DF | PULNiX America, Inc | JAI Manufacturing | 5 Nov 2019 |
| D4:1F:0C | JAI Oy | JAI Manufacturing | 5 Nov 2019 |
| 40:D8:55:1D:8 | Owl Computing Technologies, Inc. | Owl Cyber Defense Solutions, LLC | 13 Nov 2019 |
| 34:E3:DA | Hoval AG | Hoval Aktiengesellschaft | 16 Nov 2019 |
| 70:B3:D5:F4:C | Global Lightning Protection Services A(S | PolyTech A/S | 21 Nov 2019 |
| 00:0D:B4 | NETASQ | Stormshield | 23 Nov 2019 |
| 00:12:58 | Activis Polska | TechVoIP Sp z o.o. | 3 Dec 2019 |
| 00:0E:F3 | Smarthome | Smartlabs, Inc. | 4 Dec 2019 |
| 4C:A0:03 | T-21 Technologies LLC | VITEC | 4 Dec 2019 |
| 00:26:74 | Electronic Solutions, Inc. | Hunter Douglas | 8 Dec 2019 |
| 70:38:11 | Invensys Rail | Siemens Mobility Limited | 13 Dec 2019 |
| FA:66:73 | NES (NELLS ELECTRONIC SYSTEMS) | NELLS ELECTRONIC SYSTEMS (NES) | 17 Dec 2019 |
| D4:CF:F9 | Shenzhen Sen5 Technology Co., Ltd. | Shenzhen SEI Robotics Co.,Ltd | 25 Dec 2019 |
| DC:35:F1 | Positivo Informática SA. | Positivo Tecnologia S.A. | 25 Dec 2019 |