STOCKHOLM (AFP) - Arms manufacturers in North America and Western Europe dominated international arms sales in 2014, but their market share dropped while Russian and Asian companies saw theirs rise, the Stockholm International Peace Research Institute (SIPRI) reported Monday.

Total turnover for the 100 biggest arms and military services companies declined for the fourth year in a row, falling by 1.5 per cent from 2013 to stand at US$401 billion (S$565 billion).

The top company was US-based Lockheed Martin, which saw sales grow by 3.9 percent to US$37.5 billion for 2014.

Companies based in Western Europe and the United States continue to dominate the top 100, with 80 per cent of the total market share. But sales for Western European and US companies decreased by 3.2 percentage points between 2013 and 2014.

In Western Europe "a large part of the defence spending, which is missing, is from procurement. It's easier to cut procurement than to cut salaries - so the quickest thing to do is just buy less," said Siemon Wezeman, a senior researcher at SIPRI's Arms and Military Expenditure Programme.

Meanwhile, the 36 companies representing the rest of the world on SIPRI's list saw their sales soar by 25 per cent, boosted by an almost 50-per cent rise in Russian arms sales.

"Russian companies are riding the wave of increasing national military spending and exports," said Wezeman.

The combined annual revenue growth of the 11 Russian companies on SIPRI's list from 2013-14 was 48.4 per cent, according to the report.

The top Russian company on the list was Almaz-Antey, taking 11th place with a turnover of US$8.84 billion. Almaz-Antey manufactures the BUK missile, which was allegedly used to shoot down a Malaysia Airlines Boeing 777 on July 17, 2014 in Ukraine.

Much of Russia's weapons production is delivered to its own armed forces, but it also has large clients in other parts of the world, including India and China - both big players in the arms race.

Moscow has also provided arms to Syria since the Soviet era, though Damascus is now receiving very little, Wezeman said.

After an almost five-year conflict that has left 250,000 people dead and forced millions of others to flee, Syria no longer has the financial means to buy weapons from Russia.

"The Russians basically say: you pay, then we deliver, otherwise we don't do it," Wezeman said.

Russian arms sales don't appear to have suffered much from the international sanctions slapped on Moscow after its annexation of Crimea in March 2014. Weapons industry officials have said the sanctions have merely prompted Russia to seek out new markets and develop new technologies.

But because of its conflict with Russia, Ukraine's arms sale have plunged by 37.4 per cent.

"The noticeable decline in sales for Ukrainian companies was largely due to disruption caused by the conflict in eastern Ukraine, the loss of the Russian market, and the fall in the value of the local currency," said Wezeman.

Ukraine state-owned company UkrOboronProm fell from 58th position in 2013 to 90th in 2014, with a drop in sales of 50.2 percent to US$840 million. Motor Sich, the other Ukrainian company that was ranked in the 2013 top 100, has left the list altogether.

Emerging producers meanwhile continued to strengthen their presence.

Two Turkish arms-producing companies ranked in the top 100: ASELSAN, which increased its sales by 5.6 percent in 2014 but has moved down in the ranking from 66th to 73rd; and Turkish Aerospace Industry (TAI), which has entered the top 100 at 89, with a growth in arms sales of 15.1 percent.

"Turkey is seeking more self-sufficiency for its arms supplies and this, coupled with an aggressive export drive, has contributed to the rapid growth in revenue for ASELSAN and TAI," said Pieter Wezeman, another senior researcher at SIPRI.

South Korean companies also raised their profile in 2014, increasing their total sales by 10.5 per cent compared to 2013.

The most recent South Korean entrant to the top 100 is Hyundai Rotem, a military vehicle manufacturer, which jumped from US$430 million in 2013 to US$770 million in 2014.

A total of 15 Asian companies, excluding Chinese manufacturers, entered the Sipri top 100 list.

The Swedish institute does not include China in its list due to a lack of reliable data.