OPC UA alternatives
As of 4 November 2026, 39 iot platforms protocols are named by companies instead of OPC UA: Modbus by 2,067 companies, CAN bus by 1,760, SPI by 1,559.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- OPC UA, companies in postings
- 935
- Most used alternative
- Modbus · 2,067
- Fastest hiring, 90 days
- Modbus
- Alternatives ranked
- 39
- Catalogue
- T-1.0.1-prov
iot platforms protocols companies choose instead of OPC UA
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs OPC UA | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | ModbusModbus Organization | 2,067 | 221% | 5,698 | OPC UA vs Modbus → | |
| 2 | CAN busISO | 1,760 | 188% | 5,610 | OPC UA vs CAN bus → | |
| 3 | SPIMotorola | 1,559 | 167% | 4,935 | OPC UA vs SPI → | |
| 4 | I2CNXP | 1,515 | 162% | 4,820 | OPC UA vs I2C → | |
| 5 | UART(industry standard) | 1,237 | 132% | 3,224 | OPC UA vs UART → | |
| 6 | MQTTOASIS | 1,201 | 128% | 2,656 | OPC UA vs MQTT → | |
| 7 | EtherNet/IPODVA | 1,048 | 112% | 2,374 | OPC UA vs EtherNet/IP → | |
| 8 | PROFINETPROFIBUS & PROFINET International | 914 | 98% | 2,036 | OPC UA vs PROFINET → | |
| 9 | PROFIBUSPROFIBUS & PROFINET International | 701 | 75% | 1,645 | OPC UA vs PROFIBUS → | |
| 10 | BACnetASHRAE | 598 | 64% | 1,743 | OPC UA vs BACnet → | |
| 11 | USBUSB Implementers Forum | 597 | 64% | 1,786 | OPC UA vs USB → | |
| 12 | Bluetooth Low EnergyBluetooth SIG | 473 | 51% | 934 | OPC UA vs Bluetooth Low Energy → | |
| 13 | RS-485TIA | 464 | 50% | 1,001 | OPC UA vs RS-485 → | |
| 14 | OPC (OPC UA)OPC Foundation | 451 | 48% | 1,193 | OPC UA vs OPC (OPC UA) → | |
| 15 | RS-232EIA | 446 | 48% | 1,038 | OPC UA vs RS-232 → | |
| 16 | KNXKNX Association | 401 | 43% | 703 | OPC UA vs KNX → | |
| 17 | EtherCATEtherCAT Technology Group | 378 | 40% | 884 | OPC UA vs EtherCAT → | |
| 18 | BluetoothBluetooth SIG | 346 | 37% | 659 | OPC UA vs Bluetooth → | |
| 19 | IEC 61850IEC | 324 | 35% | 1,126 | OPC UA vs IEC 61850 → | |
| 20 | DNP3IEEE | 321 | 34% | 895 | OPC UA vs DNP3 → | |
| 21 | DeviceNetODVA | 285 | 30% | 598 | OPC UA vs DeviceNet → | |
| 22 | DDS (Data Distribution Service)Object Management Group | 280 | 30% | 663 | OPC UA vs DDS (Data Distribution Service) → | |
| 23 | LIN BusLIN Consortium | 266 | 28% | 1,210 | OPC UA vs LIN Bus → | |
| 24 | CAN FDBosch | 181 | 19% | 545 | OPC UA vs CAN FD → | |
| 25 | RS-422TIA/EIA | 180 | 19% | 607 | OPC UA vs RS-422 → | |
| 26 | SAE J1939SAE International | 179 | 19% | 468 | OPC UA vs SAE J1939 → | |
| 27 | ZigbeeConnectivity Standards Alliance | 179 | 19% | 427 | OPC UA vs Zigbee → | |
| 28 | 175 | 19% | 552 | OPC UA vs UDS (ISO 14229) → | ||
| 29 | 168 | 18% | 380 | OPC UA vs GPIO → | ||
| 30 | CANopenCAN in Automation | 162 | 17% | 293 | OPC UA vs CANopen → | |
| 31 | NFCNFC Forum | 147 | 16% | 366 | OPC UA vs NFC → | |
| 32 | DMX512USITT | 122 | 13% | 150 | soon | |
| 33 | LonWorksEchelon | 115 | 12% | 403 | soon | |
| 34 | ARINCSAE ITT | 114 | 12% | 492 | soon | |
| 35 | EcoStruxureSchneider Electric | 109 | 12% | 339 | soon | |
| 36 | LoRaWANLoRa Alliance | 108 | 12% | 185 | soon | |
| 37 | Azure IoT HubMicrosoft | 100 | 11% | 162 | soon | |
| 38 | DALIDiiA | 99 | 11% | 154 | soon | |
| 39 | HART ProtocolFieldComm Group | 99 | 11% | 265 | soon |
Filter on any of them, or on OPC UA users who also name an alternative, and open the person who owns the stack.
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39 iot platforms protocols are named by companies instead of OPC UA: Modbus by 2,067 companies, CAN bus by 1,760, SPI by 1,559, measured from their own job postings. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/opc-ua/alternatives)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
OPC UA alternatives: questions
What is the most used alternative to OPC UA?
Modbus: 2,067 companies name it in their own job postings, against 935 for OPC UA.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
Get these companies your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on OPC UA
or on what replaces it
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