I can't tell you about the maker but I can tell you about the symbols on it. It is a souvenir knife made with the symbols of Freemasonry, specifically Blue Lodge symbols. The eye represents the All Seeing Eye of the Great Architect Of The Universe. The cube represents the building blocks of Solomon's Temple. The G represents God and its being in a star hearkens back to Solomon, as the "Jewish star" is also known as Solomon's Seal. There are also the familiar square and compasses and trowel of operative masonry that are important symbols of the Blue Lodge. The cloud is a symbol I've forgotten, so if any other Brother can illuminate this forgetful Traveller, I'll be obliged.
Swedish Knives, I would speculate your grandfather was a Freemasonry and he carried this knife as a token of his membership. Keep it in memory of him. I look forward to seeing other posts. Also a closer pic of the blade tangs might give more to go on.
Zieg