diff --git a/src/state/IState.ts b/src/state/IState.ts
index 521c494..c0456ba 100644
--- a/src/state/IState.ts
+++ b/src/state/IState.ts
@@ -16,7 +16,9 @@ export interface IState extends EventEmitter {
 
     reset(): void;
 
+    getGroups(): Map<string, IGroup>;
     getGroup(id: string): IGroup;
+    getScenes(): Map<string, IScene>;
     getScene(id: string): IScene;
     onSceneCreate(data: ISceneData): IScene;
     synchronizeScenes(data: ISceneDataArray): IScene[];
@@ -24,6 +26,7 @@ export interface IState extends EventEmitter {
 
     getControl(id: string): IControl;
 
+    getParticipants(): Map<string, IParticipant>;
     getParticipantByUserID(id: number): IParticipant;
     getParticipantByUsername(name: string): IParticipant;
     getParticipantBySessionID(id: string): IParticipant;
diff --git a/src/state/State.ts b/src/state/State.ts
index 0a568ca..a03aebe 100644
--- a/src/state/State.ts
+++ b/src/state/State.ts
@@ -308,6 +308,13 @@ export class State extends EventEmitter implements IState {
         return group;
     }
 
+    /**
+     * Retrieve all groups.
+     */
+    public getGroups(): Map<string, Group> {
+        return this.groups;
+    }
+
     /**
      * Retrieve a group with the matching ID from the group store.
      */
@@ -315,6 +322,13 @@ export class State extends EventEmitter implements IState {
         return this.groups.get(id);
     }
 
+    /**
+     * Retrieve all scenes
+     */
+    public getScenes(): Map<string, Scene> {
+        return this.scenes;
+    }
+
     /**
      * Retrieve a scene with the matching ID from the scene store.
      */
@@ -336,6 +350,13 @@ export class State extends EventEmitter implements IState {
         return result;
     }
 
+    /**
+     * Retrieve all participants.
+     */
+    public getParticipants(): Map<string, IParticipant> {
+        return this.participants;
+    }
+
     private getParticipantBy<K extends keyof IParticipant>(field: K, value: IParticipant[K]): IParticipant {
         let result;
         this.participants.forEach(participant => {