10 Charter Communications procurement leaders
Senior vice president of strategic procurement, vice president of procurement and director of strategic sourcing are among the roles held by these ten Charter Communications procurement leaders. A reader can learn how procurement leaders work at Charter Communications from people who have held the role.
Professionals to explore
Cale St. Clair
LinkedInExperience: Director, Strategic Sourcing · Charter Communications
Cale St. Clair has been Director, Strategic Sourcing at Charter Communications since August 2025 and was Senior Manager Strategic Sourcing there from 2024 to 2025. Cale St. Clair was also Sr. Category Manager, IT Procurement at Amazon (2021 to 2024) and Vice President, Global Procurement at Northern Trust (2018 to 2020).
Greg Jewell
LinkedInExperience: Vice President, Procurement · Spectrum
Greg Jewell has been Vice President, Procurement at Spectrum since September 2022. Greg Jewell held supply chain and business operations roles at Comcast from 2013 to 2022, including Executive Director, Supply Chain (2019 to 2022) and Senior Director, Business Operations (2018 to 2019).
James Koo
LinkedInExperience: Director Category Management · Charter Communications
James Koo has been Director Category Management at Charter Communications since August 2026. James Koo was Director, Category Management & Strategic Sourcing at Cox Communications from December 2024 to August 2026, and the profile describes James Koo as an enterprise procurement leader overseeing Product & Engineering sourcing.
Janelle Kent
LinkedInExperience: Director, Procurement - Indirect · Charter Communications
Janelle Kent has been Director, Procurement - Indirect at Charter Communications since January 2026, based in Littleton, Colorado. Janelle Kent also held the roles of Sr. Procurement Manager - Indirect (2025 to 2026) and Procurement Manager - Indirect (2024 to 2025) at the company, and was Global Supply Manager at Apple from 2021 to 2023.
Julie Reiman
LinkedInExperience: Sr. Director Strategic Sourcing · Charter Communications
Julie Reiman has been Sr. Director Strategic Sourcing at Charter Communications since November 2024 and was Director Strategic Sourcing there from December 2016 to November 2024. The profile headline describes the current role as Sr. Director Strategic Sourcing, Global Strategy, based in the Denver area.
Keith Kastenholz
LinkedInExperience: Director, Strategic Sourcing · Charter Communications
Keith Kastenholz has been Director, Strategic Sourcing at Charter Communications since March 2026 and was Senior Procurement Manager there from 2024 to 2026. Keith Kastenholz was Global Category Manager - Indirect at Johnson Controls from 2021 to 2024, and the profile lists category strategy, negotiations and strategic sourcing as skills.
Melody Ratliff
LinkedInExperience: Director, Strategic Sourcing · Charter Communications
Melody Ratliff has been Director, Strategic Sourcing at Charter Communications since August 2026, based in Atlanta, Georgia. Melody Ratliff was Director Strategic Sourcing, IT & Marketing Technology at Cox Communications from July 2020 to August 2026 and Global Communications Sourcing Manager at UPS from 2008 to 2017.
Michael Vail
LinkedInExperience: Senior Director, Procurement · Charter Communications
Michael Vail has been Senior Director, Procurement at Charter Communications since February 2025, based in Denver, Colorado. Michael Vail also held the roles of Director, Procurement (2022 to 2025), Senior Manager, Procurement (2020 to 2022) and Manager, Procurement (2018 to 2020) at the company.
Michelle Hawkins
LinkedInExperience: Senior Vice President of Strategic Procurement · Charter Communications
Michelle Hawkins has been Senior Vice President of Strategic Procurement at Charter Communications since February 2018, based in Denver, Colorado. Michelle Hawkins was Head of MSC Procurement at Nokia from 2011 to 2012, according to the work history in the profile.
Robert Zook
LinkedInExperience: Vice President, Procurement · Charter Communications
Robert Zook has been Vice President, Procurement at Charter Communications since May 2016. Robert Zook was Head of Procurement at Bright House Networks from 2014 to 2016 and Global Category Lead, Corproate Procurement at Citi from 2006 to 2014, as shown in the profile.
Choose the right perspective
Choose the person whose title names the spend area or sourcing scope closest to your question, and note when the role began. Weigh level too, because an executive who sets procurement direction and a director who runs individual sourcing events see different parts of the work.
Questions to take into the conversation
- 01What took most of your time in your current procurement role, and what did you change first?
- 02How did you balance cost, risk and supplier relationships when they pulled in different directions?
- 03What did you carry over from earlier roles that changed how you approach sourcing work?
Reaching Charter Communications procurement leaders
How can I contact one of these Charter Communications procurement leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 2 companies: Charter Communications and Spectrum, based on profile data retrieved on October 18, 2026. Being listed here doesn't mean someone has agreed to take calls.
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Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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