diff --git a/Jenkinsfile b/Jenkinsfile
index fb91adb..1360613 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -26,6 +26,7 @@ pipeline {
 				label 'docker'
 			}
 			steps {
+				sh 'docker build permissions-report -t fork-report'
 				sh 'docker build permissions-report -t permissions-report'
 				sh 'docker build artifactory-users-report -t artifactory-users-report'
 			}
@@ -39,6 +40,20 @@ pipeline {
 				}
 			}
 			parallel {
+				stage('GitHub Forks') {
+					agent {
+						label 'docker'
+					}
+					environment {
+						GITHUB_API = credentials('github-token')
+					}
+					steps {
+						sh 'docker build fork-report -t fork-report'
+						sh 'docker run -e GITHUB_API_TOKEN=$GITHUB_API_PSW fork-report > github-jenkinsci-fork-report.json'
+						archiveArtifacts 'github-jenkinsci-fork-report.json'
+						publishReports ([ 'github-jenkinsci-fork-report.json' ])
+					}
+				}
 				stage('Artifactory Permissions') {
 					agent {
 						label 'docker'
diff --git a/fork-report/Dockerfile b/fork-report/Dockerfile
new file mode 100644
index 0000000..8df8db7
--- /dev/null
+++ b/fork-report/Dockerfile
@@ -0,0 +1,7 @@
+FROM ruby:2.6.5-alpine3.10
+
+RUN gem install graphql-client httparty
+
+COPY fork-report.rb /
+
+ENTRYPOINT ["ruby", "/fork-report.rb"]
diff --git a/fork-report/fork-report.rb b/fork-report/fork-report.rb
new file mode 100755
index 0000000..1cb4b42
--- /dev/null
+++ b/fork-report/fork-report.rb
@@ -0,0 +1,107 @@
+# Usage: GITHUB_API_TOKEN=abcdefabcdef ruby fork-report.rb > report.json
+
+require 'graphql/client'
+require 'graphql/client/http'
+require 'httparty'
+require 'pp'
+require 'json'
+
+$auth = "bearer #{ENV['GITHUB_API_TOKEN']}"
+
+module GitHubGraphQL
+  HTTP = GraphQL::Client::HTTP.new('https://api.github.com/graphql') do
+    def headers(context)
+      {
+        'Authorization' => $auth
+      }
+    end
+  end
+  Schema = GraphQL::Client.load_schema(HTTP)
+  Client = GraphQL::Client.new(schema: Schema, execute: HTTP)
+end
+
+
+CollaboratorsQuery = GitHubGraphQL::Client.parse <<-'GRAPHQL'
+
+query($repository_cursor: String) {
+  organization(login: "jenkinsci") {
+    repositories(first: 100, after: $repository_cursor) {
+      pageInfo {
+        startCursor
+        hasNextPage
+        endCursor
+      }
+      edges {
+        node {
+          nameWithOwner
+          isFork
+          parent {
+            nameWithOwner
+          }
+        }
+      }
+    }
+  }
+  rateLimit {
+    limit
+    cost
+    remaining
+    resetAt
+  }
+}
+GRAPHQL
+
+
+$table_data = []
+
+def record_repository(repo_name, source_repo)
+  $table_data << [ repo_name, source_repo ]
+end
+
+def ratelimit_info(rate_limit)
+  STDERR.puts "Rate limit: Cost: #{rate_limit.cost}, limit #{rate_limit.limit}, remaining: #{rate_limit.remaining}, reset at: #{rate_limit.reset_at}"
+end
+
+repository_cursor = nil
+collaborator_cursor = nil
+error_count = 0
+
+loop do
+  STDERR.puts "Calling with cursors: repository #{repository_cursor}"
+  result = GitHubGraphQL::Client.query(CollaboratorsQuery, variables: {repository_cursor: repository_cursor  })
+
+  if !result.errors[:data].empty? then
+    STDERR.puts result.errors[:data]
+    sleep 5
+    if error_count > 50 then
+      # fatal
+      STDERR.puts 'Consecutive error count limit reached, aborting'
+      abort('Too many errors')
+    else
+      error_count += 1
+    end
+  else
+    error_count = 0
+
+    result.data.organization.repositories.edges.each { |repo|
+      repo_name = repo.node.name_with_owner
+      STDERR.puts "Processing #{repo_name}"
+      if repo.node.is_fork then
+        record_repository(repo_name, repo.node.parent&.name_with_owner )
+      end
+    }
+
+    ratelimit_info(result.data.rate_limit)
+
+    repository_paging = result.data.organization.repositories.page_info
+    if repository_paging.has_next_page
+      collaborator_cursor = nil
+      repository_cursor = repository_paging.end_cursor
+      STDERR.puts "Next page of repositories, from #{repository_cursor}"
+    else
+      break
+    end
+  end
+end
+
+puts JSON.generate($table_data)