| Unit | Type |
| 17th US Inf. | U.S. Reg. Inf. |
| 1812 U S Marine Guard USS Constitution | U S |
| 1812 U.S. Marine & Navy Guard | U.S.Navy Landing Party (fielding as) |
| 1812 US MARINE GUARD | US MARINES |
| 1812 US MARINES USS CONSTITUTION | US MARINE |
| 19/21 US Infantry | US |
| 19th US Infantry, Langham's Company | US |
| 1st [Royal Scots] Rgmt, Grenadier Co | British |
| 1st Battalion, 95th Regiment of Foot | British |
| 1st Infantry - Symmes company | US |
| 1st Regiment Volunteers | US |
| 1st Reg't, Lincoln Militia | British |
| 2/44th Regiment of Foot (UK) | British Heavy Infantry |
| 21st RNBF, No 3 Coy | British Line Infantry |
| 21st Royal North British Fuzileers | Brit Regular |
| 22nd U.S. Infantry | U.S. |
| 22nd U.S. Infantry , Henderson`s Company | US |
| 2nd Kentucky militia | USA |
| 3/2d BN, Royal Marines | British |
| 41st Regiment of Foot | British Infantry |
| 49th Grenadiers / Royal Artillery | British Regular |
| 49th Grenadiers/RA | British |
| 4th Kings Own | British |
| 77th Reg't NY state Militia,MacKay's Company | US |
| 7th US Infy, militia platoon | US |
| 7th USI,US | US |
| 95th Rifles, 2nd Btl. | British |
| Aisquith's Sharp Shooters | U.S. Md. Militia Rifle Co. |
| Baltimore United Volunteers | U.S.Uniformed Militia |
| British Expeditionary Force | British |
| Brook's Detachment, US Marines | US Marines |
| Canadian Volunteers | US |
| Carolina Living History Guild | USN |
| Co A, 2nd U.S. Artillery | US |
| Corps of Royal Engineers | British |
| CROWN FORCES STAFF | BRITISH - CANADIAN - MILITIAS - ALLIES |
| Crown Forces Staff | British |
| Cushing's Co. 2nd U.S.Artillery | Artillery |
| Dolley Madison | First Lady |
| Fell's Point Rifles | Maryland Militia Rifles |
| Fort McHenry Guard | US |
| Fort Norfolk Garrison | US |
| Fort York Guard (Canadian Regiment of Fencible Infantry) | British infantry |
| Friends of Fort Atkinson | US military |
| Grenadier Coy, 89th Regiment of Foot | British Regulars |
| HMS Discovery | RN |
| HMS Dragon | British Royal Navy |
| IMUC | British |
| Incorporated Milita of Upper Canada | British |
| Incorporated Militia of Upper Canada | British |
| Isaac's Co., 34th Maryland Militia Regt. | US State Militia - Prince George's County, MD |
| Kochan & Phillips Historical Textiles | Sutler |
| LaCroix C'y.,2nd Mich Volunteer Militia | US |
| Lions Den Arms & Antiques | Sutler |
| Lt. Col. G.C. Beauregard | Military sutler |
| Maryland Light Dragoons | US state (Md) militia,cavalry, plus one British regular cavalry (6D) |
| Regiment of Riflemen, Gower's Co | U.S. |
| Riversdale House & Museum | individual citizen |
| Royal Marines, 1st Company, 2nd Battalion | British |
| ROYAL NAVY LANDING PARTY | BRITISH |
| Royal Newfoundland Regiment | British |
| Royal Newfoundland Reg't | British |
| Royal Scots (Light Company) | British |
| Ship's Company | USN |
| Smith's Coy, United States Regiment of Riflemen | US |
| Some Wares in Time | sutler |
| Southern Divison Staff / 6th US Infantry | US |
| US Field Musik 1812 | US |
| US Marines Philadelphia | US |
| Veteran Volunteers | American civilians |