T-Mobile Ventures

John Saw, T-Mobile's Senior Vice President of Advanced & Emerging Technologies, oversees the fund. He has served as the carrier's chief technology officer since 2014 and directs both the investment committee and the engineering teams that evaluate technical fit. Day-to-day deal sourcing is managed by the ventures team within his division.

The fund leverages T-Mobile's network engineering team and enterprise partnerships to identify startups building on 5G infrastructure. Because the carrier actively tests and deploys emerging network technologies across its US footprint, the engineering bench sees commercial-grade innovation before formal fundraising processes begin. This operational pipeline — combined with inbound interest from founders seeking carrier distribution — supplies the majority of the deal funnel.

T-Mobile Ventures deploys directly from the parent company's balance sheet. It does not accept outside limited partners, which allows the fund to prioritize strategic alignment over liquidity pressure. The initial commitment was $5 billion, but the firm has not disclosed annual deployment figures or total capital called since launch.

The firm's standard practice is to accept an observer or full board seat in portfolio companies where the technology has direct integration potential with T-Mobile's network. This reflects the strategic mandate: board presence ensures the technical roadmap stays aligned with the carrier's infrastructure deployment schedule.

The fund focuses on Series A through C rounds, occasionally participating in seed extensions when the company has demonstrated a working prototype on 5G architecture. Later-stage deals are less common because the strategic window — network integration before competitors standardize the technology — narrows at scale.

The fund does not invest in consumer mobile apps, media content, or smartphones — areas where T-Mobile already maintains vendor relationships that would conflict with the ventures team's objectivity. It also avoids pure semiconductor plays, preferring to invest in the application layer that runs on chips rather than the chips themselves.

Deutsche Telekom operates a separate venture arm, DTCP, which focuses on European and Israeli deep-tech and digital infrastructure. T-Mobile Ventures coordinates with DTCP on cross-border deals but maintains an independent US-focused mandate. A startup targeting the European market would engage DTCP; one needing US carrier distribution starts with T-Mobile Ventures.