An easy way to contribute to tree planting is ecosia.org (more info at info.ecosia.org). We've already planted more than 55 million trees and won't be stopping there.

I linked this a different comment: https://www.youtube.com/watch?v=-ld0EDDQZg4& This is our tree planting officer explaining (among other things) how he tries to make sure we plant in the right places (and that includes land ownership questions and how to make sure the tress will still be around in a few years). As for energy consumption, we do offset the CO2 emissions that are associated with searching on Ecosia by running our own solar power plant. Here is some more information on this on our blog: https://blog.ecosia.org/co2-neutral-seach-engine-ecosia-sola...

Thanks for sharing. I’m curious to know how we would align our company to a social initiative such as this and would be curious to know if other things are sacrificed to have a decent amount of profit to pay for tree-planting?

We work very closely with experts from experienced tree-planting organizations to make sure the best possible methods are applied. Our tree-planting officer (yep, that is his actual title) has years of experience and is our link to these partners on the ground. Here is a video of him sharing some more insights of how we pick trees and planting sites: https://www.youtube.com/watch?v=-ld0EDDQZg4&

I only started at Ecosia in 2016, but I feel you.

Not sure if this is appreciated on HN (I only saw a guideline about posts, not comments), but if this piqued someone's interest, we have a bunch of open positions at the moment: https://ecosia.workable.com/

Are there any resources to find companies that give back their profits to society, especially to environment?

I think that's totally fine to link here. It's certainly something that may be of interest to folks who are in this comment section.

Not sure my word is going to mean much, but yes, we do indeed plant these trees :) We also publish regular tree updates to make the impact more visible (latest one is here https://www.youtube.com/watch?v=FeBhY5m9npE&) and just now some of my colleagues are in Indonesia: https://www.facebook.com/ecosia/videos/1056643057857650/

We also use a ODK-backed system for monitoring, where our partners on the ground fill in surveys about the trees they planted.

One of the Devs at Ecosia here. The more up-to-date reports are at our blog: https://blog.ecosia.org/tag/financial-reports/