Capitalize

Capitalize is a New York-based fintech that digitises the 401(k) rollover. In the US, a 401(k) is an employer-sponsored retirement account; when someone changes jobs the account normally stays behind at the former employer’s recordkeeper, and moving it into an IRA — an individual retirement account the saver controls — has traditionally meant paperwork, phone calls and coordination between several institutions.

Capitalize automates that process: it locates a user’s forgotten 401(k) accounts, helps them choose and open an IRA at a partner provider, and then executes the transfer on their behalf. The consumer service is free, monetised through preferred-partner arrangements. The same engine is sold as an embedded Rollover API so banks, brokerages, robo-advisers and recordkeepers can offer in-product rollovers, and since 2026 as a platform for financial advisers to capture held-away retirement assets.

1. Free consumer service: finds legacy 401(k) accounts, matches and opens an IRA at a leading provider, and initiates the rollover on the user's behalf.

2. Enterprise Rollover API embedded by financial institutions including Betterment, Charles Schwab, M1 Finance, Robinhood, SoFi and TIAA.

3. Processing several billion dollars of rollover volume annually.

4. Rollover volume and revenue grew roughly 6x in the 18 months to mid-2024.

5. USD 19 million Series B in August 2024 led by RRE Ventures with Canapi Ventures, Bling Capital and Industry Ventures.

6. Targets an estimated USD 1.65 trillion sitting in left-behind 401(k) accounts.