List AG membership

Author: graeme-a-stewart

organization/advisory-group.md

@@ -28,3 +28,16 @@ A nominal meeting schedule consists of one AG meeting per year, arranged to prec
 ## Advisory Group Chair Election
 
 The Advisory Group chair is elected annually and serves for 2 years, serving a maximum of 2 terms. The Steering Group secretary serves as returning officer and is in charge of running the election. Candidates for the chair of the Advisory Group can be nominated and can self-nominate. The election will be held by confidential ballot. In the case of a tie, with more than two candidates, the top two candidates are retained and a second round is held. If there is still a tie after the second round, the SG chair is decided by lot.
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+## Advisory Group Composition
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+Currently the HSF Advisory Group comprises representatives from:
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+- ALICE Experiment
+- ATLAS Experiment
+- Belle II Experiment
+- CMS Experiment
+- DUNE Experiment
+- LHCb Experiment
+- MCnet Community
+- WLCG Project