| Foundational Research Institute | 
    Board chair | 
    2016-01-01 | 
    2018-02-01 | 
        board member | 
    [1], [2] | 
    Board members section removed around February 2018, so membership unclear after this point. | 
  
  
    | Foundational Research Institute | 
    Advisor | 
    2016-03-01 | 
    2016-10-01 | 
        advisor | 
    [3], [4] | 
     | 
  
  
    | Sentience Politics | 
    Research Associate | 
    2016-04-01 | 
    2016-06-23 | 
         | 
    [5], [6] | 
     | 
  
  
    | Effective Altruism Foundation | 
    Director of Outreach | 
    2016-10-26 | 
    2017-06-29 | 
         | 
    [7], [8] | 
     | 
  
  
    | Effective Altruism Foundation | 
    Leader | 
     | 
    2016-10-26 | 
         | 
    [9], [7] | 
     | 
  
  
    | Global Priorities Institute | 
    Research Collaborator | 
    2019-04-01 | 
    2020-05-01 | 
         | 
    [10], [11] | 
     | 
  
  
    | Center on Long-Term Risk | 
    Advisor | 
    2020-05-01 | 
     | 
        advisor | 
    [12] | 
     | 
  
  
    | Effective Altruism Foundation | 
    Advisor | 
    2020-05-13 | 
     | 
        advisor | 
    [13], [14] | 
     | 
  
  
    | Giving Multiplier | 
    Co-founder | 
    2020-11-01 | 
     | 
         | 
    [15], [16] | 
     | 
  
  
    | Global Priorities Institute | 
    Senior Research Affiliate | 
    2022-01-01 | 
    2023-03-01 | 
        affiliate | 
    [17], [18] | 
     | 
  
  
    | Global Priorities Institute | 
    Senior Research Fellow | 
    2023-12-01 | 
     | 
         | 
    [19], [20] | 
     |