| Ms. Patricia E. Ables | Administrative Aide | (845) 365-8864 | pat@admin.ldeo.columbia.edu | Traffic | |
| Mr. Bruce Baez | Mechanic | (845) 365-8600 | | Physical Plant | |
| Ms. Shelley Barsky | Administrative Aide | (845) 365-8873 | sbarsky@admin.ldeo.columbia.edu | 204 Administration | |
| Ms. Maria Angelina S. Calungcagin | Accountant | (845) 365-8852 | angelina@admin.ldeo.columbia.edu | 202 Administration | |
| Mrs. Kathleen J. Carlsen | Human Resources Coordinator | (845) 365-8357 | kathleen@admin.ldeo.columbia.edu | 205 Administration | |
| Mr. Joseph M. Casilli | Mechanic | (845) 365-8600 | | Physical Plant | |
| Mr. Robert Daly | Supervisor | (845) 365-8718 | rdaly@admin.ldeo.columbia.edu | Traffic | |
| Mr. Antonio De Loatch | Driver | (845) 365-8864 | | Traffic | |
| Ms. Bonnie L. Deutsch | Analyst/Buyer | (845) 365-8854 | bonnie@admin.ldeo.columbia.edu | 204 Administration | |
| Ms. Wanda Diaz | Financial Analyst | (845) 365-8735 | wanda@admin.ldeo.columbia.edu | 202 Administration | |
| Mr. Thomas W. Eberhard | Manager | (845) 365-8865 | tome@admin.ldeo.columbia.edu | Traffic | |
| Mr. Bernard D. Gallagher | Senior Electronic Technician | (845) 365-8436 | bdg@ldeo.columbia.edu | Instrument Lab | |
| Mr. Richard E. Greco | Manager of Facilities | (845) 365-8602 | dick@admin.ldeo.columbia.edu | Physical Plant | |
| Ms. Maryann Hanneman | Telephone Operations Coordinator | (845) 365-8990 | hanneman@admin.ldeo.columbia.edu | 101 Administration | |
| Ms. Kristine Harding | Administrative Aide | (845) 365-8591 | harding@admin.ldeo.columbia.edu | 206 Administration | |
| Ms. L. Diane Hicks | Budget Assistant | (845) 365-8352 | diane@admin.ldeo.columbia.edu | 202 Administration | |
| Ms. Annette Higgins | Project Coordinator | (845) 365-8372 | ahiggins@admin.ldeo.columbia.edu | 206E Administration | |
| Mrs. Karen Hoffer | Manager | (845) 365-8404 | khoffer@ldeo.columbia.edu | 204 Administration | |
| Mr. Charles H. Jones | Mechanic | (845) 365-8600 | | Physical Plant | |
| Ms. Paula Kolacia | Travel Services Coordinator | (845) 365-8431 | pkolacia@admin.ldeo.columbia.edu | 206 Administration | |
| Mrs. Jessie Lamarque | Administrative Aide | (845) 365-8851 | jnl@admin.ldeo.columbia.edu | 202 Administration | |
| Mr. Maurice A Mack | Driver | (845) 365-8864 | | Traffic | |
| Ms. Virginia M. Maher | Manager of Human Resources | (845) 365-8847 | vmaher@admin.ldeo.columbia.edu | 205 Administration | |
| Mr. Howard Matza | Manager of Security Safety Comm. and Property | (845) 365-8822 | hmatza@admin.ldeo.columbia.edu | 101 Administration | |
| Ms. Edith Miller | Assistant Director of Finance and Administration | (845) 365-8804 | edie@admin.ldeo.columbia.edu | 217 Administration | |
| Mrs. Margaret Morrone | Administrative Aide | (845) 365-8600 | morrone@admin.ldeo.columbia.edu | Physical Plant | |
| Mr. Herbert P. Muench | Mechanic | (845) 365-8600 | | Physical Plant | |
| Ms. Victoria Nazario | Accountant | (845) 365-8495 | vicky@admin.ldeo.columbia.edu | 202 Administration | |
| Mr. Patrick J. O'Reilly | Assistant Director of Facilities and Engineering | (845) 365-8843 | oreilly@admin.ldeo.columbia.edu | 211 Administration | |
| Mrs. Maribel Respo | Manager | (845) 365-8829 | mrespo@admin.ldeo.columbia.edu | 206 Administration | |
| Ms. Carla Rivera | Accountant | (845) 365-8889 | carla@admin.ldeo.columbia.edu | 202 Administration | |
| Ms. Theresa Sencen | Project Coordinator | (845) 365-8855 | theresa@admin.ldeo.columbia.edu | 206 Administration | |
| Ms. Linda Sheridan | Coordinator | (845) 365-8856 | lindas@admin.ldeo.columbia.edu | 202 Administration | |
| Mr. Raymond Slavin | Mechanic | (845) 365-8600 | | Physical Plant | |
| Mr. Eric Soto | Mechanic | (845) 365-8600 | es241@columbia.edu | Physical Plant | |
| Mr. Kevin Sullivan | Mechanic | (845) 365-8600 | | Physical Plant | |
| Mr. Lenny Sullivan | Mechanic | (845) 365-8601 | sully@admin.ldeo.columbia.edu | Physical Plant | |
| Mrs. Virginia P. Tavarone | Financial Services Assistant | (845) 365-8885 | gpt@admin.ldeo.columbia.edu | 202 Administration | |
| Ms. Patricia E. Temple | Administrative Aide | (845) 365-8842 | ptemple@admin.ldeo.columbia.edu | 209 Administration | |
| Mr. Juan A. Torres | Driver | (845) 365-8864 | | Traffic | |
| Ms. Cathy H. Troutman | Assistant Manager Safety and Security | (845) 365-8860 | cathyt@admin.ldeo.columbia.edu | 101 Administration | |
| Mr. Richard Trubiroha | Mechanic | (845) 365-8600 | | Physical Plant | |
| Mrs. Jennifer Verdin | Human Resources Payroll Specialist | (845) 365-8840 | verdin@admin.ldeo.columbia.edu | 205 Administration | |
| Mr. Stephen Weinstein | Night Supervisor (Custodial and Security) | (845) 365-8990 | cleaners@admin.ldeo.columbia.edu | 101 Administration | |
| Mr. Douglas Yano | Assistant Mechanic | (845) 365-8600 | | Physical Plant | |
| Ms. Rachel Young | Project Coordinator | (845) 365-8588 | ryoung@admin.ldeo.columbia.edu | 206 Administration | |