Detroit-based Signal Advisors Raises $16 Million to Build End-to-End Platform for Independent Financial Advisors - Tech-enabled distributor of annuities and life insurance to independent financial advisors - Simplifies licensing & contracting, new business submission, case design, marketing, compliance and more DETROIT, April 26, 2021-- Signal Advisors, a tech-enabled distributor of annuities and life insurance, today announced a $10 million Series A led by General Catalyst, which closed in December 2020.