Thank you both for your interest. OpenPhil recently responded to us on this, here's what we know: 

Different OpenPhil teams have discussed ALLFED's appeal for support that to see if there would be a fit, and they have concluded that there currently isn't a fit for ALLFED.

To clarify further, ALLFED has never received any grants from Open Philanthropy. No direct reason for this has been offered.

Thank you for doing this really important work, I'm really looking forward to the results.

From your list of organizations I would suggest small edits for ALLFED: the actual value raised from SFF over the years is around $3 million not $1.5 million if my estimates are correct. And the link to the research outputs is actually this one. The value of grants from OP is zero.

My previous experience assessing the projects of the listed organizations (I did not vote for those I'm unfamiliar with), how neglected the work they're doing is, and the marginal impact I expect from funding them.

ALLFED has published peer-reviewed cost-effectiveness analyses estimating that this work is likely to be more cost-effective than GiveWell interventions for saving lives in the present generation, and potentially more cost-effective than artificial general intelligence safety for improving the long run future (resilient foods and resilience to loss of electricity/industry).

Independent evaluations of cost-effectiveness of the type of work that ALLFED does can be found here:

• CEARCH's in-depth analysis of interventions for Resilience to Nuclear & Volcanic Winter. They argue that policy advocacy campaigns are the most promising intervention, around 30x the cost-effectiveness of a typical GiveWell-recommended charity.
• Unjournal's 1st eval is up: Resilient foods paper This is an evaluation of the aforementioned peer-reviewed papers by subject-matter expert senior researchers.
• Speedrun: Demonstrate the ability to rapidly scale food production in the case of nuclear winter by Marie Buhl from Rethink Priorities: "my (extremely rough) estimate that this project reduces x-risk with a cost-effectiveness of ~$260 million per 0.01% absolute reduction^[1] (~70% confidence interval: 2.2 million to 2.7 billion). If this estimate were accurate, then this project would clear our median roughly estimated cost-effectiveness bar of $500M per basis-point of x-risk averted".
• Famine deaths due to the climatic effects of nuclear war by Vasco Grilo: "I guess the true cost-effectiveness is within the same order of magnitude of that of GiveWell’s top charities"
• Shallow evaluations of longtermist organizations by Nuno Sempere: "I disagree strongly with ALLFED's estimates (probability of cost overruns, impact of ALLFED's work if deployed, etc.), however, I feel that the case for an organization working in this area is relatively solid." (Note that this is a 3 year old analysis, when the funding situation and risk landscapes were different).

Appendix: list of project titles

1. Recovering infrastructure as quickly as possible after a catastrophe
2. Retrofitting ships to be wind-powered
3. Emergency CubeSat
4. Developing plants resilient to low sunlight, temperature, or water
5. Foods from thin air: Towards CO2-based diets for deep space missions, Earth's environment, and existential food resilience
6. Potential of combined production of lignocellulosic sugar and leaf protein concentrate for preventing mass starvation in an ASRS
7. Potential of microbial fats for preventing mass starvation in an ASRS
8. Potential of single cell protein from wood and agricultural residues for preventing mass starvation in an ASRS
9. Potential of single cell protein via solid fermentation of peat/lignite for preventing mass starvation in an ASRS
10. Rapid repurposing of industrial infrastructure for microbial food production in global catastrophic food shocks
11. Retrofitting single cell protein animal feed factories to single cell protein human food factories
12. Agricultural residues: Potential for feeding ruminants
13. Integrated model with addition of crop relocation, expanded planted area, and (maybe) leaf protein concentrate
14. Quick cost estimates of potential resilient foods
15. Systematic review of health outcomes of nutritional issues in an ASRS
16. Integrated model with infrastructure and population loss
17. Expanded planted area scale-up analysis
18. In-depth analysis of labor and equipment for industrial food production
19. Food production during an x-pandemic
20. Analysis of international cooperation in an ASRS like nuclear winter
21. Cost and scaling of energy/electricity production in a catastrophe
22. GIS analysis of water supply and demand if the sun is obscured
23. Integrated model with varying number of Tg and duration of aerosols
24. Literature review and mapping of regions resilient to global catastrophes
25. Estimating worst drop in food production globally so far for every country
26. GCFF mental health
27. Literature assessment on whether people inexperienced in growing food could be trained quickly to do so
28. Supply-chain modelling under severe disruption scenarios
29. Mortality from losing infrastructure if basic needs are met
30. Trade economics without money in loss of industry
31. Produce a governmental ASRS response plan for a particular country
32. Produce ASRS or GCIL response plans at various governance levels
33. Piloting agriculture in ASRS conditions
34. Water treatment in an x-pandemic
35. Plant-based meat to displace inefficient animal agriculture in an ASRS

Interesting post. Just a quick comment on the effectiveness of "research and dissemination" and "Spreading “we’re all in this together” frames" type interventions. These sound similar to interventions that policymakers try time and again in response to disasters because they're intuitive, despite the fact that they don't work very well or at all.

The source I linked describes a comparison of interventions for pandemic response in the general public, so it's not directly applicable, but I worry a similar issue may be at hand here. The interventions aimed at changing minds generally have negligible effects, especially compared to other interventions such as providing social support and tapping into individuals’ behavioral skills and habits as well as removing practical obstacles to behavior.

I don't know what the equivalent on the "nuclear war prevention" area is of these other interventions that work well for pandemic response, but I do worry that the "knowledge and beliefs" type interventions proposed would also be negligible like they are in this other field.

Thank you so much for writing and sharing this resource Sam, and again I can't thank you enough for your support in helping us launch our policy org ORCG, we quite probably could not have done it without you.