company

Historical background

The word 'company' as an organised unit of soldiers can be traced to at least the 12th Century, in the context of free companies and the later compagnies d'ordonnance.

The modern military company became popularized during the reorganization of the Swedish Army in 1631 under King Gustav II Adolph. For administrative purposes, the infantry was divided into companies consisting of 150 men, grouped into regiments of eight companies. Tactically, the infantry companies were organized into battalions and grouped with cavalry troops and artillery batteries to form brigades.

From ancient times, some armies have commonly used a base administrative and tactical unit of around 100 men. (Perhaps the best known is the Roman century, originally intended as a 100-man unit, but later ranging from about 60 to 80 men, depending on the time period.) An organization based on the decimal number system (i.e., by tens, hundreds, thousands, and ten-thousands) might seem intuitive. To the Romans, for example, a unit of 100 men seemed sufficiently large to efficiently facilitate organizing a large body of men numbering into the several thousands, yet small enough that one man could reasonably expect to command it as a cohesive unit by using his voice and physical presence, supplemented by musical notes (e.g., drum beats, bugle or trumpet blasts, etc.) and visual cues (e.g., colors, standards, guidons, etc.).

Furthermore, recent studies have indicated that humans are best able to maintain stable relationships in a cohesive group numbering between 100 and 250 members, with 150 members being the common number (see Dunbar's number). Again, a military unit on the order of no more than 100 members, and perhaps ideally fewer, would perhaps present the greatest efficiency as well as effectiveness of control, on a battlefield where the stress, danger, fear, noise, confusion, and the general condition known as the "fog of war" would present the greatest challenge to an officer to command a group of men engaged in mortal combat. Until the latter half of the 19th century, when infantry troops still routinely fought in close order, marching and firing shoulder-to-shoulder in lines facing the enemy, the company remained at around 100, or fewer, men.

The advent of accurate, long-range rifle fire, repeating rifles, and machine guns necessitated highly dispersed combat formations. This, coupled with radio communication, permitted relatively small numbers of men to have much greater firepower and combat effectiveness than previously possible. Companies, however, continue to remain within the general range of 100–250 members, perhaps validating the premise that humans fight best (as well as live, work, socialize, play, etc.) in organizations of around 150 members, more or less.

NATO

NATO defines a company as "larger than a platoon, but smaller than a battalion" while being a "unit consisting of two or more platoons, usually of the same type, with a headquarters and a limited capacity for self-support." The standard NATO symbol for a company consists of a single vertical line placed above a framed unit icon. Member nations have stipulated the different names they will use for organizations of this size.

British Army

Rifle companies consist of three platoons and a company headquarters.

Company-sized organisations in units with a horse-mounted heritage, such as the Household Cavalry, Royal Armoured Corps, Royal Engineers, Royal Corps of Signals, Army Air Corps, Special Air Service, Honourable Artillery Company and Royal Logistic Corps, use the term squadron instead of company, and in the Royal Artillery they are called batteries. Until after the Second World War, the Royal Engineers and Royal Signals had both squadrons and companies depending on whether the units were supporting mounted or foot formations.

The British Army infantry normally identifies its rifle companies by letter (usually, but not always, A, B and C) within a battalion, usually with the addition of a headquarters company and a support/heavy weapons company. Some units name their companies after regimental battle honours; this is commonly the case for composite units, for example the London Regiment with its Somme, Messines and Cambrai companies. The foot guards regiments use traditional names for some of their companies, for example Queen's Company, Left Flank, Prince of Wales's Company etc.

Royal Marines companies are designated by a letter that is unique across the corps, not just within their command. The Intelligence Corps, Royal Military Police and Royal Electrical and Mechanical Engineers all have companies uniquely numbered across their corps.

The defunct Royal Army Service Corps, Royal Pioneer Corps and Royal Army Ordnance Corps had companies; the Royal Corps of Transport had squadrons.

British companies are usually commanded by a major, the officer commanding (OC), with a captain or senior lieutenant as second-in-command (2i/c). The company headquarters also includes a company sergeant major (CSM) normally holding the rank of WO2 and a company quartermaster sergeant (CQMS) of colour sergeant rank, the two most senior soldiers in the company.

The Honourable Artillery Company is in fact a regiment, not a company, in terms of organisation and size.

Canadian Army

In the Canadian Army, the company is the standard sub-unit organization for infantry and combat service support, as modelled after the British. A Canadian infantry battalion consists of three or four rifle companies identified by letter (A Company, B Company, etc.), a Combat Support Company, and an Administration Support Company. A notable exception is The Royal Canadian Regiment, which names its companies sequentially throughout the regiment from the Duke of Edinburgh's Company (instead of A Company) in the 1st Battalion to T Company in the 4th Battalion. Many regiments name their companies after battle honours or former units that make up the current regiment, for example:

75th Company, The Toronto Scottish Regiment (Queen Elizabeth the Queen Mother's Own) – commemorating 75th Battalion (Mississauga), CEF

Victoria Company, The Queen's Own Rifles of Canada – commemorating Queen Victoria

Grenadier Company, The Royal Regiment of Canada – commemorating the Royal Grenadiers

No. 2 (Prince of Wales) Company, Canadian Grenadier Guards – commemorating 1st Regiment "Prince of Wales' Fusiliers"

The combat support company administratively contains the specialized platoons, such as reconnaissance, pioneer, headquarters and signals, anti-armour, and mortar. The administration support company contains the support tradesmen that a battalion requires, such as cooks, vehicle technicians, supply, medics, etc.

As in the British Army, company-sized units with a mounted heritage use the term squadron, and in the artillery they are called batteries.

Soviet/Russian armed forces

Motorised rifle company

A Soviet motorised rifle company could be mounted in either BTR armoured personnel carriers or BMP infantry fighting vehicles, with the former being more numerous into the late 1980s. A BTR rifle company consisted of a company headquarters, three motorised rifle platoons and a machine gun/antitank platoon equipped with three PK machine guns and three AT-7 Saxhorn launchers for a total of 110 personnel and 12 BTRs. A BMP rifle company had the same number of personnel and carriers and consisted of a company headquarters, three motorised rifle platoons and a machine gun platoon equipped with six RPK-74s. While seemingly containing less firepower, US commanders were advised to include the BMP's heavier weaponry in their calculations.

Tank company

Prior to the late 1980s, a Soviet tank company within a Motorised Rifle Regiment consisted of a company headquarters and three tank platoons with T-64, T-72 or T-80 tanks for a total of 39 personnel and 13 tanks; companies using the older T-54, T-55 or T-62s tanks had 13 additional enlisted personnel. Companies within Tank Regiments or independent Tank Battalions had a slightly smaller establishment, having 10 tanks and 30 personnel (40 with older tanks).

Research company

Research companies (single. nauchnaya rota, научная рота) were established in 2013 to allow conscripts with higher education to serve doing scientific and research tasks. There are seven research companies:

2nd and 3rd research company (Aerospace Forces)

5th research company (Army)

6th research company (General Headquarters)

7th research company (Communication)

8th research company (Medical)

9th research company (Radiation, Chemical, and Biological Defense)

United States

Army

In the 1700s, British Army, American Colonial Militia, and Provincial Regulars (e.g., the Virginia Regiment), and later American Army infantry, regiments were organized into companies of somewhat less than 100 officers and enlisted men, although the actual totals widely varied. For example, in 1775, a typical British Army infantry company contained only 47 personnel (comprising 3 officers, 5 noncommissioned officers, a drummer, and 38 privates). However, by 1792, an American infantry company contained 98 personnel (comprising 3 officers, 9 noncommissioned officers, a drummer, a fifer, and 84 privates).

Beginning in 1775, American forces began to develop their own organizational doctrine somewhat based on the Franco-Prussian model (with much influence beginning in 1777 from Continental European expatriates and future American generals the Marquis de Lafayette of France, Count Casimir Pulaski of Poland, and Baron von Steuben of Prussia). As a result, in 1776, a Continental Army Infantry company was authorized one captain, one first lieutenant, one second lieutenant (both lieutenants serving as platoon commanders – not designated as platoon leaders until 1943 under the "Triangular Division" reorganization begun in 1939), an ensign (an obsolete subaltern officer rank charged with carrying the regimental colors in rotation with the other ensigns of the battalion/regiment), four sergeants (section leaders/squad leaders with two to a platoon), four corporals (assistant section leaders/squad leaders with two to a platoon), two musicians (a drummer and a fifer), and 76 privates. The company was organized into two platoons, each consisting of two sections/squads (the terms were sometimes used interchangeably) consisting of one sergeant, one corporal, and 19 privates. (Wright, 1983)

From the late 1700s up until the late 1800s, a US infantry company was commanded by a captain and assisted by a first sergeant (first authorized in 1781), and consisted of a small company headquarters and two identical platoons commanded by lieutenants. Even though from 1808 until 1821 companies were authorized two first lieutenants and two second lieutenants (and again from 1861 to 1866 for two second lieutenants), the positions of company executive officer (second-in-command) and a third platoon commander were not authorized until 1898 when the army expanded under mobilization for the war with Spain. During the 1800s the authorized strength of infantry companies fell to a low of 54 officers and men during periods of relative peace from 1821 to 1838 and again from 1842 to 1846. In contrast, from 1812 to 1815 (second war with Great Britain), 1846 to 1848 (war with Mexico), 1861 to 1890 (American civil war and wars with the plains Indians), and 1898–1899 (war with Spain) authorized company strength ranged from over 100 officers and men up to a high of 119. Also, in 1861 a company quartermaster sergeant was added to the authorized manning of an infantry company and a wagoner was reinstituted (previously authorized from 1796 to 1808) to drive the company supply wagon.

Marine Corps

Rifle Company

Company Headquarters

Company Commander (Commanding Officer/CO) – Captain (O-3)

Executive Officer (XO) – usually a First Lieutenant (O-2)

First Sergeant (1stSgt, E-8)

Gunnery Sergeant (GySgt, E-7)

Property NCO (Sgt, E-5)

Messenger/Driver (Pvt-LCpl, E-1/3)

Rifle Platoon (3)

Platoon Headquarters

Platoon Commander – Lieutenant (O-1/2)

Platoon Sergeant – Staff Sergeant (E-6)

Platoon Guide – Sergeant (E-5)

Messenger – (Pvt-LCpl, E-1/3)

Rifle Squad (3)

Squad Leader – Sergeant (E-5)

Fire Team (3)

Team Leader/Grenadier – Corporal (E-4)

Automatic Rifleman – Lance Corporal (E-3)

Assistant Automatic Rifleman – (Pvt-LCpl, E-1/3)

Rifleman/Scout – (Pvt-LCpl, E-1/3)

Weapons Platoon

Platoon Headquarters

Notable examples

Some companies were well enough known that they have been identified with their company letter. Examples include:

Easy Company of the 506th Parachute Infantry Regiment, 101st Airborne Division, which became the focus of the BBC/HBO miniseries Band of Brothers.

Able Company of the 116th Infantry Regiment, 29th Infantry Division, which landed at Dog Green Sector on Omaha Beach during the Normandy landings and suffered 96% casualties.