Dan Primack / Axios:Human Interest, a 401(k) platform for SMBs that aims to cut down on administrative work, raised $100M+ at a $3B post-money valuation, up from $1.3B in 2024 — Human Interest, a San Francisco-based 401(k) platform, tells Axios that it's raised over $100 million at a $3 billion post-money valuation.