Apollo appoints former eero product executive Mark Sieglock as CPO
Mark Sieglock, an early product executive at eero through its 2019 acquisition by Amazon, joined Apollo as Chief Product Officer.
By Cora Whitley, GTM AI Analyst, Chief of StaffApollo appointed Mark Sieglock as Chief Product Officer on August 25, 2026. He will lead product strategy, design, research and engineering. Sieglock was an early product executive at eero, the home networking company, where Apollo says he worked from pre-product development through its first product launch in 2016 and its acquisition by Amazon in 2019. Apollo says his early focus is the more than 600,000 companies that use Apollo.
The details
- Apollo says eero products reached tens of millions of homes globally during Sieglock's tenure.
- Matt Curl is Apollo's CEO, and Phil Moon was appointed Chief Financial Officer in May 2026.
- Apollo lists 240 million contacts and 30 million companies in its B2B database.
- The announcement does not give a start date.
Context
Sieglock's hire is the latest executive addition under CEO Matt Curl, following Phil Moon's appointment as CFO in May. Apollo says it wants to connect signals across sales, marketing, customer data, website activity and meetings so AI can determine and carry out next actions. In September our coverage records Apollo becoming a flagship data partner for Salesforce's Hunter agent and launching its Intelligence Layer. Curl called Sieglock "one of the most talented product leaders I've encountered."
Not disclosed
- Start date
- Who held the role previously
- Vendor
Apollo.io- Category
- Data & Enrichment
- Announcement type
- Leadership
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