GPIO alternatives
As of 4 November 2026, 39 iot platforms protocols are named by companies instead of GPIO: 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.
- GPIO, companies in postings
- 168
- 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 GPIO
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 GPIO | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | ModbusModbus Organization | 2,067 | 1230% | 5,698 | GPIO vs Modbus → | |
| 2 | CAN busISO | 1,760 | 1048% | 5,610 | GPIO vs CAN bus → | |
| 3 | SPIMotorola | 1,559 | 928% | 4,935 | GPIO vs SPI → | |
| 4 | I2CNXP | 1,515 | 902% | 4,820 | GPIO vs I2C → | |
| 5 | UART(industry standard) | 1,237 | 736% | 3,224 | GPIO vs UART → | |
| 6 | MQTTOASIS | 1,201 | 715% | 2,656 | GPIO vs MQTT → | |
| 7 | EtherNet/IPODVA | 1,048 | 624% | 2,374 | GPIO vs EtherNet/IP → | |
| 8 | OPC UAOPC Foundation | 935 | 557% | 2,090 | GPIO vs OPC UA → | |
| 9 | PROFINETPROFIBUS & PROFINET International | 914 | 544% | 2,036 | GPIO vs PROFINET → | |
| 10 | PROFIBUSPROFIBUS & PROFINET International | 701 | 417% | 1,645 | GPIO vs PROFIBUS → | |
| 11 | BACnetASHRAE | 598 | 356% | 1,743 | GPIO vs BACnet → | |
| 12 | USBUSB Implementers Forum | 597 | 355% | 1,786 | GPIO vs USB → | |
| 13 | Bluetooth Low EnergyBluetooth SIG | 473 | 282% | 934 | GPIO vs Bluetooth Low Energy → | |
| 14 | RS-485TIA | 464 | 276% | 1,001 | GPIO vs RS-485 → | |
| 15 | OPC (OPC UA)OPC Foundation | 451 | 268% | 1,193 | GPIO vs OPC (OPC UA) → | |
| 16 | RS-232EIA | 446 | 265% | 1,038 | GPIO vs RS-232 → | |
| 17 | KNXKNX Association | 401 | 239% | 703 | GPIO vs KNX → | |
| 18 | EtherCATEtherCAT Technology Group | 378 | 225% | 884 | GPIO vs EtherCAT → | |
| 19 | BluetoothBluetooth SIG | 346 | 206% | 659 | GPIO vs Bluetooth → | |
| 20 | IEC 61850IEC | 324 | 193% | 1,126 | GPIO vs IEC 61850 → | |
| 21 | DNP3IEEE | 321 | 191% | 895 | GPIO vs DNP3 → | |
| 22 | DeviceNetODVA | 285 | 170% | 598 | GPIO vs DeviceNet → | |
| 23 | DDS (Data Distribution Service)Object Management Group | 280 | 167% | 663 | GPIO vs DDS (Data Distribution Service) → | |
| 24 | LIN BusLIN Consortium | 266 | 158% | 1,210 | GPIO vs LIN Bus → | |
| 25 | CAN FDBosch | 181 | 108% | 545 | GPIO vs CAN FD → | |
| 26 | RS-422TIA/EIA | 180 | 107% | 607 | GPIO vs RS-422 → | |
| 27 | SAE J1939SAE International | 179 | 107% | 468 | GPIO vs SAE J1939 → | |
| 28 | ZigbeeConnectivity Standards Alliance | 179 | 107% | 427 | GPIO vs Zigbee → | |
| 29 | 175 | 104% | 552 | GPIO vs UDS (ISO 14229) → | ||
| 30 | CANopenCAN in Automation | 162 | 96% | 293 | GPIO vs CANopen → | |
| 31 | NFCNFC Forum | 147 | 88% | 366 | GPIO vs NFC → | |
| 32 | DMX512USITT | 122 | 73% | 150 | soon | |
| 33 | LonWorksEchelon | 115 | 68% | 403 | soon | |
| 34 | ARINCSAE ITT | 114 | 68% | 492 | soon | |
| 35 | EcoStruxureSchneider Electric | 109 | 65% | 339 | soon | |
| 36 | LoRaWANLoRa Alliance | 108 | 64% | 185 | soon | |
| 37 | Azure IoT HubMicrosoft | 100 | 60% | 162 | soon | |
| 38 | DALIDiiA | 99 | 59% | 154 | soon | |
| 39 | HART ProtocolFieldComm Group | 99 | 59% | 265 | soon |
Filter on any of them, or on GPIO 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 GPIO: 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/gpio/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.
GPIO alternatives: questions
What is the most used alternative to GPIO?
Modbus: 2,067 companies name it in their own job postings, against 168 for GPIO.
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 GPIO
or on what replaces it
Connect the MCP server, filter on any tool. Start free, no card.