Can I mention my own company or product?
Conditionally. The rules say you can comment about sustainable finance services or companies you like, but only with factual information, and referral codes are removed.
Subreddit guides
r/sustainableFinance rules, stats, and what to post
A source-backed Rankhog guide to r/sustainableFinance: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 13,883
- Verified
- September 27, 2026
- Category
- Quantitative finance professionals
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- Be Polite or Be Banned: Social media is broken. We can be part of the problem or try to make the best of a bad situation and carve a sane niche for meaningful discussion.
- No Speculators, No Referral Codes, No Green Pimping: Sometimes it is hard to separate speculation from activity that finances the real economy. Most of the time it is not. This is not a subreddit for day traders or others trying to create / judge sentiment about financial positions. Feel free to comment about sustainable finance services, companies or projects you like - with factual information. We don't monitor, vouch-for or endorse any commercial entity. Posts or comments with referral codes will be removed.
- Increase the signal, reduce the noise: Select great quality content and tag it appropriately so that its easily found
- Break it down for me: Lets try to have a healthy mix of technical or expert material together with content that is suitable for interested non-technical people
- Keep it relevant: Post should be related in an obvious way to sustainable finance - not just sustainability
- Use the Paywall Tag: When you post a link from a site that is mostly behind a paywall, add the 'Paywall' flair to the post. Keep in mind some sites provide limited access
Works well
- Sharing new research or data on how sustainable finance projects get funded.
- Posting a factual writeup of a tool that helps measure or report on sustainability in finance.
- Commenting factually about a sustainable finance service you genuinely like, with no referral code.
- Linking a news story about a company or project financing something in the real economy sustainably.
- Writing an explainer that breaks a technical sustainable finance topic down for non-experts, tagged with the right flair.
Avoid
- Posting referral codes in a post or a comment, which gets removed every time.
- Framing a tool as a way to judge sentiment about financial positions or markets.
- Posting general sustainability news that has no clear finance angle.
- Dropping a paywalled article without the Paywall flair.
- Being rude or combative in comments, which can get you banned.
- Sharing anything that reads like day trading or speculation content.
What r/sustainableFinance Is For
This community is about a financial system that takes environmental, social and governance considerations into account so the human economy lasts long term. The description lists news, events, ideas, research, funding, data and tools as welcome material. The people posting here want discussion about how money and finance actually serve sustainability, not about making money from price moves. The rules say outright that this is not a subreddit for day traders or people trying to create or judge sentiment about financial positions. The mods also ask for a mix of technical and expert material alongside content a non-expert can follow.
Rules That Matter Before Posting
“Be Polite or Be Banned” sets the tone, so any post or comment that gets snarky can get you banned outright. “No Speculators, No Referral Codes, No Green Pimping” is the one that decides most marketing outcomes, because it allows factual comments about sustainable finance services you like but removes anything with a referral code. “Increase the signal, reduce the noise” means low effort posts that are not great quality get filtered out. “Break it down for me” rewards content that interested non-technical people can actually follow. “Keep it relevant” removes anything that is about sustainability in general rather than sustainable finance specifically. “Use the Paywall Tag” means any link from a mostly paywalled site needs the Paywall flair or it goes.
What To Post
A good post here is factual and clearly tied to sustainable finance, like news, research, data, tools or funding developments in that space. If you are a founder, you can comment about a sustainable finance service or company you like, including your own, as long as you stick to factual information and skip the referral codes. Share data or tools with a clear explanation of what they do, since the community explicitly welcomes tools. Tag and flair your post properly, and add the Paywall flair when your link sits behind a paywall. Aim for a mix of depth and readability so both experts and interested non-experts get something.
What To Avoid
Referral codes get removed with no exceptions, so never include one. Speculation, day trading content, or anything meant to move sentiment about a financial position is off topic. Posts that are about sustainability but not obviously about sustainable finance fail the relevance rule. Paywalled links without the Paywall flair get removed. Rudeness is a ban, not just a removed post.
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Common questions about r/sustainableFinance
Can I post a link to an article or a report?
Yes, links are allowed, but add the Paywall flair if the source is mostly behind a paywall.
Can I post market predictions or trading takes?
No. The community says it is not a place for day traders or people trying to create sentiment about financial positions.
Is a general climate or ESG story fine to post?
No. Posts must be obviously about sustainable finance, not just sustainability in general.
What if I include a referral code with my link?
No. Any post or comment with a referral code will be removed.