Tandem Expansion Fund | 675 followers on LinkedIn. Tandem Expansion is a private growth capital fund seeking to invest in small and mid-sized Canadian companies in a variety of technology-based sectors. Tandem will act as a catalyst for growth and expansion by making targeted investments in companies with high growth potential and strong management teams. The fund’s executives collectively represent decades of direct experience as founders and managers of startups as well as successful investors in venture capital and private equity.