Exhibit 31.2
CERTIFICATION
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, Harry Brill, certify that:
1. I have reviewed this quarterly report on Form 10-Q of Gladstone Investment Corporation;
2. Based on my knowledge, this quarterly report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements made, in light of
the circumstances under which such statements were made, not misleading with respect to the period
covered by this quarterly report;
3. Based on my knowledge, the financial statements, and other financial information included
in this quarterly report, fairly present in all material respects the financial condition, results
of operations and cash flows of the registrant as of, and for, the periods presented in this
quarterly report;
4. The registrants other certifying officer(s) and I are responsible for establishing and
maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and
15d-15(e)) for the registrant and have:
a) designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our supervision, to ensure that material information relating to
the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this quarterly report is being prepared;
b) evaluated the effectiveness of the registrants disclosure controls and procedures and
presented in this quarterly report our conclusions about the effectiveness of the disclosure
controls and procedures as of the end of the period covered by this report based on such
evaluation; and
c) disclosed in this report any changes in the registrants internal control over financial
reporting that occurred during the registrants most recent fiscal quarter (the registrants fourth
fiscal quarter in the case of an annual report) that has materially affected, or is reasonably
likely to materially affect the registrants internal control over financial reporting; and
5. The registrants other certifying officer(s) and I have disclosed, based on our most
recent evaluation of internal control over financial reporting, to the registrants auditors and
the audit committee of registrants board of directors (or persons performing the equivalent
functions):
a) All significant deficiencies and material weaknesses in the design or operation of internal
control over financial reporting which are reasonably likely to adversely affect the registrants
ability to record, process, summarize and report financial information; and
b) Any fraud, whether or not material, that involves management or other employees who have a
significant role in the registrants internal control over financial reporting.
Date: August 10, 2005
/s/ HARRY BRILL
Harry Brill
Chief Financial Officer and Treasurer