Here are some national or international-scale solarpunk-adjacent organizations worth working with or donating to.

• Extinction Rebellion (on Sunbeam City @ExtinctionR) - Nonviolent action in response to the urgent threat of climate change.
• Earth Strike (on Sunbeam City @EarthStrikeInt) - The world's first global general strike. Planned for September 27th 2019, it demands immediate action on climate change.
• Rising Tide: North America/United Kingdom/Australia/Ecuador/Finland - Occupations and blockades, among other actions, to oppose fossil fuels and protect the environment.
• Demand Utopia! - A libertarian municipalist organization which opposes fascism, takes direct action, and fights for liberation and the environment.

• Transition Network - Neighborhood-level organizing, projects, and development of resources (such as Repair Cafes, community gardens,and makerspaces) to build sustainable circular economies.
• Buy Nothing Project - Share your resources and your skills with your neighbors, with the ultimate goal being to buy nothing.
• Falling Fruit - Plant fruit trees and other edible plants in urban environments to help end food insecurity.
• Food Not Lawns - Share skills, labor, and resources to promote urban farming.
• Communitere - A non-profit that builds makerspaces and provides other resources to promote independence and resilience in underserved, exploited, or disaster-struck areas.

• Industrial Workers of the World - Join the one big union! Organize your workplace and fight for your rights as a worker. Also facilitates community self-defense, as well as antifascism and antiracism, with the General Defense Committee.
• Debt Collective - Dispute your debt, organize debt strikes, and oppose the debt economy.
• International Workers Alliance - An international federation of anarcho-syndicalist labor unions and initiatives including the Confederación Nacional del Trabajo and Solidarity Federation.

• Food Not Bombs - Collect corporate food waste and prepare meals with and for people in your community.
• Mutual Aid Disaster Relief - Community-focused aid and reconstruction to areas affected by disasters.
• Timebanking: United States/United Kingdom - Trade your time, labor, and skills with your neighbors without exchanging money.
• WeHaveRoom - Offer room in your house/on your land to those struck by disasters.
• Medic Wiki's list of street medic organizations - Volunteers who provide first aid at protests and actions, and who train others to do the same.

• Peng - Hacking/art activism.
• Framasoft - Education, publishing, and internet privacy.
• heropunch - Hacktivism and software/hardware development for a better future.