Seed companies?

Seed companies?

Hi. I was wondering what everyone's favorite seed companies are? I am looking for organic seeds as well as heirloom varities. I know that theres a lot of seed companies out there, so I wanted to get recomendations from you guys on reputable companies that you've ordered from and been happy with. Also, I'm in zone 5, does anyone know around what time I should be starting my seeds? I think it's still to early, but i've never done it before. Thank you!!
Seedlings question, as well as a few other questions

Seedlings question, as well as a few other questions

Waiting

Waiting

Holly’s Room

Holly’s Room

Tulips again

Tulips again

Broccoli Harvest!

Broccoli Harvest!

Problems with Peppers

Problems with Peppers