The company said it will place 909,091 new ordinary shares, raising £500,000 before expenses.
The funds will be used to ensure the company is sufficiently well capitalised to take advantage of longer-term growth opportunities once the coronavirus (COVID-19) situation stabilises and to strengthen the balance sheet.
"Following our well-received annual results, and expressions of interest from both existing and new investors, we are pleased to announce this successful placing,” Ian Mann, the chief executive officer of ECSC said in a statement.
“We particularly welcome the participation of four new shareholders. In addition to enhancing our cash position, this placing also helps us to prepare for post-COVID-19 opportunities. Current rapid changes in remote working come with increased cybersecurity risks and ECSC continues to be ideally placed to help organisations prevent, detect and respond to the resulting incidents," he added.
Shares in ECSC closed at 72.5p last night.