So for a company in this situation, keeping up to date with the latest technology, even if it's only for the benefit of key staff, this can be hugely expensive.

【翻译】因此，对于一家处于这种情况的公司来说，（如果）要跟上最新技术的步伐，即使只是为了主要员工们的利益，这也是非常昂贵的。

keeping up to date with the latest technology，现在分词短语作条件状语。