A SCOTTISH firm that operates ships used to ferry goods to oil and gas platforms is increasing its fleet size by two-thirds to cash in on booming activity in the North Sea.

Aberdeen-based Fletcher Shipping has acquired two platform supply vessels to add to the three it already had. The investment has been made with the support of a £14 million funding package provided by Royal Bank of Scotland, Maven Capital Partners and the Scottish Loan Fund.

This signals financiers' enthusiasm for the oil and gas services sector at a time when the Scottish industry is attracting attention from investors from around the world. Services firms that get their offering right can expect rapid growth.

Fletcher increased turnover to £9.5m in 2012, during which it acquired another supply vessel with support from the Scottish Loan Fund. The fund is managed by Glasgow-based Maven Capital Partners.

The family-owned Fletcher Shipping generated £8.4m turnover in 2011.

"Fletcher Shipping is making the most of the opportunities which exist in the booming oil & gas industry in the North Sea," said Jock Gardiner, of Maven.

In the latest funding round, Royal Bank of Scotland provided £8m debt. Maven client funds provided a £4.5m five-year term loan and the Scottish Loan Fund provided £1m to add to the £4m it provided in 2012.

The Scottish Government-backed loan fund was established to provide debt for promising businesses.

Kerry Sharp, head of the Scottish Investment Bank, said: "Fletcher Shipping is exactly the kind of company the Scottish Loan Fund was established to support - it has excellent potential."

She said the fund is a ­flexible product that acts as a catalyst for further investment.