![John Zillmer](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
John Zillmer
Chairman at
CSX CORPORATION
Net worth: 83 M $ as of 2026-05-30
Profile
Presently, John J. Zillmer holds the position of Non-Executive Chairman of CSX Corp. and Chief Executive Officer & Director at Aramark. Mr. Zillmer is also on the board of Ecolab, Inc. and Advisor at Liberty Capital Partners, Inc. (Rhode Island). In the past Mr. Zillmer held the position of Executive Chairman & Chief Executive Officer at Univar Solutions, Inc., Chairman & Chief Executive Officer for Allied Waste Industries LLC and Executive Vice President for Aramark Services, Inc. John J. Zillmer received an MBA from Kellogg School of Management.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
Aramark
 Aramark RestaurantsConsumer Services Operates as a holding company with interests in food services and facilities management 0.39% | 2026-06-02 | 1,020,874 ( 0.39% ) | 54 M $ | 2026-05-30 |
CSX CORPORATION 0.02% | 2026-06-02 | 353,714 ( 0.02% ) | 16 M $ | 2026-05-30 |
ECOLAB INC. 0.02% | 2026-05-14 | 49,192 ( 0.02% ) | 13 M $ | 2026-05-30 |
John Zillmer active positions
| Companies | Position | Start |
|---|---|---|
| ECOLAB INC. | Director/Board Member | 2006-05-11 |
| CSX CORPORATION | Chairman | 2019-01-30 |
Aramark
Aramark RestaurantsConsumer Services Operates as a holding company with interests in food services and facilities management | Chief Executive Officer | 2019-10-05 |
Old Time Coffee Co.
 Old Time Coffee Co. Food: Specialty/CandyConsumer Non-Durables Provides the finest gourmet office coffee service and vending supplies | Chief Executive Officer | - |
Former positions of John Zillmer
| Companies | Position | End |
|---|---|---|
| PERFORMANCE FOOD GROUP COMPANY | Director/Board Member | 2018-12-31 |
| REYNOLDS AMERICAN, INC. | Director/Board Member | 2017-07-24 |
| UNIVAR SOLUTIONS INC. | Chief Executive Officer | 2012-07-26 |
Allied Waste Industries LLC
 Allied Waste Industries LLC TruckingTransportation Provides waste collection and disposal services | Chief Executive Officer | 2008-12-03 |
| ESSENDANT INC | Director/Board Member | 2008-05-13 |
Training of John Zillmer
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
64
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
Allied Waste Industries LLC
Allied Waste Industries LLC TruckingTransportation Provides waste collection and disposal services | Transportation |
CSX Corp.
 CSX Corp. RailroadsTransportation Provides rail-based freight transportation services | Transportation |
Ecolab, Inc.
 Ecolab, Inc. Chemicals: SpecialtyProcess Industries Develops and markets water treatment, cleaning & sanitizing products and provides laundry & pest control services | Process Industries |
Performance Food Group Co.
 Performance Food Group Co. Other TransportationTransportation Markets and distributes food products | Transportation |
Essendant, Inc.
 Essendant, Inc. Air Freight/CouriersTransportation Provides wholesale distribution, warehousing and order fulfillment services | Transportation |
Pathmark Stores, Inc.
 Pathmark Stores, Inc. Food RetailRetail Trade Owns and operates supermarkets | Retail Trade |
Casella Waste Systems, Inc.
 Casella Waste Systems, Inc. Environmental ServicesIndustrial Services Provides solid waste collection and waste management services | Industrial Services |
Aramark Services, Inc.
 Aramark Services, Inc. RestaurantsConsumer Services Provides food, facilities management and uniform services | Consumer Services |
Reynolds American, Inc.
 Reynolds American, Inc. TobaccoConsumer Non-Durables Manufactures and sells cigarettes & tobacco products | Consumer Non-Durables |
Old Time Coffee Co.
Old Time Coffee Co. Food: Specialty/CandyConsumer Non-Durables Provides the finest gourmet office coffee service and vending supplies | Consumer Non-Durables |
xpedx Holding Co.
 xpedx Holding Co. Containers/PackagingProcess Industries Manufactures and distributes packaging paper and cardboard products | Process Industries |
Aramark
Aramark RestaurantsConsumer Services Operates as a holding company with interests in food services and facilities management | Consumer Services |
Univar Solutions, Inc.
 Univar Solutions, Inc. Wholesale DistributorsDistribution Services Distributes chemicals and ingredients | Distribution Services |
Liberty Capital Partners, Inc. (Rhode Island)
 Liberty Capital Partners, Inc. (Rhode Island) Investment ManagersFinance Liberty Capital Partners invests in companies located in the United States. The firm focuses on the technology sector. It provides financing for early, later, buyout and growth stage capital requirements with an investment size of USD 2 - 10 million. | Finance |
Kellogg School of Management
 Kellogg School of Management Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Veritiv Corp.
 Veritiv Corp. Containers/PackagingProcess Industries Manufactures and distributes packaging products & provides printing and facility solutions | Process Industries |
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