Past Sigma Lambda Chi International Officers are:
| President | Vice President | Secretary Treasurer | |
| Feb. 23, 1952 | P. J. Petrullo | William Nelson | James W. Goff |
| Nov. 27, 1954 | L. H. Charles | J. J. Casey | Earley D. McFarland |
| Mar. 24, 1956 | J. J. Casey | Bobby E. Wells Donald F. Wall |
Geoffrey E. Smith |
| May 3, 1958 | Ed Ek | Frank J. Rooney P. L. Labian |
Arthur L. Holbrook |
| Jan. 18, 1960 | William L. Morris | W. L. Favrao Jay D. Thompson |
Alan Sliker |
| Dec. 5, 1961 | William L. Morris | J. M. Trimmer Gerald Richman |
Alan Sliker |
| Dec.14, 1963 | J. M. Trimmer | Alan Sliker B. M. Radcliffe |
Loys A. Johnson |
| Apr. 15, 1967 | W. L. Favrao | J. O. Stakely J. W. Young |
R. L. Larimer |
| Apr. 18, 1969 | J. O. Stakely | J. W. Young J. J. Casey |
H. Duff Williamson |
| Apr. 16, 1970 | J. O. Stakely | J. W. Young | H. Duff Williamson |
| Apr. 22, 1971 | J. W. Young | J. J. Casey | James H. Snyder |
| Apr. 27, 1973 | J. L. Clark | A. H. Parthum, Jr. | H. E. McClure |
| Apr. 3, 1975 | A.H. Parthum, Jr. | S. D. Schuette | James F. Goddard |
| Apr. 27, 1977 | James F. Goddard | F. E. Rebholz | David A. Marchman |
| Apr. 19, 1979 | James F. Goddard | F. E. Rebholz | Jim Rodger |
| April 1981 | Bill Brown | Pat Glon | Ben Bateman |
| April 1983 | Ira Ward | Greg Wilson | Wes Crawford |
| April 1985 | Wes Crawford | Mark Taylor | Gary Gehrig |
| April 1987 | Wes Crawford | Hank Mol | Gary Gehrig |
| April 1989 | Hank Mol | David A. Marchman | Zarjon Baha |
| April 1991 | David A. Marchman | Zarjon Baha | Frederick B. Muehlhausen |
| April 1993 | Zarjon Baha | Thomas A. Love | Frederick B. Muehlhausen |
| April 1995 | Thomas A. Love | J. Mark Taylor | Frederick B. Muehlhausen |
| April 1997 | J. Mark Taylor | Frederick B. Muehlhausen | John R. Koontz |
| April 1999 | Frederick B. Muehlhausen | Linda B. Swoboda | James L. Jenkins |
| April 2001 | Linda B. Swoboda | D. Mark Hutchings | James L. Jenkins |
| April 2003 | D. Mark Hutchings | James L. Jenkins | Yi Jiang |
| April 2005 | James L. Jenkins | Gary R. Smith | Yi Jiang |
| April 2007 | Gary R. Smith | Thomas Mills | Yi Jiang/G. Lasker |
| April 2009 | Thomas Mills | Lori A. Brown | Gregory Lasker |
| April 2011 | Lori A. Brown | Charles Gains | Gregory Lasker |
| April 2013 | Lori A. Brown | Christine Piper | James L. Jenkins |
| April 2015 | Christine Piper | Keith Rahn | James L. Jenkins |
| April 2017 | Keith Rahn | Richard Gebken | James L. Jenkins |
| April 2019 | Keith Rahn | Richard Gebken | James L. Jenkins |
Past Sigma Lambda Chi International Executive Directors (formerly known as National Office Managers) are:
H. D. Williamson
Dave Marchman
Dave Pierce
Pat Glon
D. Perry Achor
F. B. Muehlhausen
The current Sigma Lambda Chi International Executive Director is:
Wesley G. Crawford