The attendee I didn’t expect at last weekend’s Build Summit — a conference organized for founders and startups — was one of the sponsors: Fidelity Investments.

It wasn’t a corporate name I anticipated seeing at the event, which was organized by @APompliano, @andruyeung and @polina_marinova, a troika of Millennials who are themselves disrupting the event industry for fintech.

It made more sense when I cornered Charlie Stephens, the Fidelity business manager who joined the Boston-based money manager and spearheaded the decision to participate. He explained the firm’s strategy of offering more services to startups.

Fidelity jump started that effort in January by buying Shoobx, its first acquisition in seven years. Shoobx helps startups raise money, manage ownership documents, meet legal requirements and ensure secure record keeping. The company competes with Carta and AngelList.

At the heart of the business is helping startups manage their “cap table.” That is the list of who has equity, which, until fairly recently, often resided in an Excel document on the founder’s laptop. That was a recipe for confusion if the CEO accidentally deleted a column or row.

Ownership in startups can get complicated real fast as founders raise additional capital or assign equity stakes to new employees when recruiting talent. It’s a recordkeeping challenge that comes along with tax and regulatory implications.

Stephens said Shoobx aims to help startups with everything from managing their cap table to completing an IPO.

“We are focused on supporting founders with their cap table, and it’s going to evolve into a suite of powerful tools to help private companies grow,” he said.

Fidelity is a late entrant into the market, but it’s significant because the firm is so large.

It also aligns with three macro trends in the wealth industry:

–Wealth is being created earlier and at a faster pace by startups

–Fidelity wants to connect to offer services earlier in the corporate life cycle.

–Fidelity and other money managers are investing more into the private sector.