Approximated

Approximated connect user custom domains to your app using a simple API. The job it does: connecting machines, sensors and robots to software that controls or monitors them.

It makes the most sense for manufacturers and operators. They also list Internet of Things, so expect those to show up in the feature set. As a very small product team themselves (1 to 10 people), they tend to serve customers of a similar scale best. You will probably talk to the people who build it, which is great until you need 24/7 support.

Approximated is based in Wilmington, Delaware. You can read more at approximated.app.

Things worth asking about: hardware compatibility, uptime, and support. Ask for a trial on your own data, not a canned demo.

Every review on Revaw shows how it was verified, so if you know Approximated well, your review carries weight here.