About development integration and joining HA Core

Hello
We are an OEM and ODM factory that has been developing and producing personal wireless weather station sensor device for thirty years.
I would like to know that the integration developed by our company has been successfully tested in HA. How can I apply to join HA Core and allow users to select brands to add? What are the requirements? Approval cycle? How much does that cost?
Thank you

These forums are more focused on user issues.

You may want to take a look at the Works with Home Assistant program or the Developer channels on the Home Assistant Discord

If your goal is simply to have your integration part of Core, the way to go is to open a PR vs. GitHub - home-assistant/core: 🏡 Open source home automation that puts local control and privacy first.

But yeah, better to make yourself known on Discord, or there is a high chance that the PR will go under the radar.

Thank you for your reply. How many weeks will it take for a new integration application to be approved by HA Core?

No one here can answer that question…