# Exhibit 31.1

Rule 15d-14(a)
Certification of the Principal Executive Officer

---

# Exhibit 31.1

# Rule 15d-14(a)
Certification of the Principal Executive Officer

I, Russel T. Williams, chief
executive officer, certify that:

|1. |  | I have reviewed this quarterly report on Form 10-QSB of BankGreenville Financial
                    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 report;
|-- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|3. |  | Based on my knowledge, the financial statements, and other financial information
                    included in this report, fairly present in all material respects the financial
                    condition, results of operations and cash flows of the small business issuer as
                    of, and for, the periods presented in this report;
|-- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|4. |  | The small business issuers other certifying officer 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 small business issuer 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 small business issuer,
including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) Evaluated the effectiveness of the small
business issuers disclosure controls and procedures and presented in this 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 change in the
small business issuers internal control over financial reporting that occurred
during the small business issuers most recent fiscal quarter that has materially
affected, or is reasonably likely to materially affect, the small business issuers
internal control over financial reporting; and
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|5. |  | The small business issuers other certifying officers and I have disclosed,
                    based on our most recent evaluation of internal control over financial
                    reporting, to the small business issuers auditors and the audit committee
                    of the small business issuers board of directors (or persons performing
                    the equivalent functions):
|-- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | a)  All significant deficiencies and material
weaknesses in the design or operation of internal controls over financial reporting which
are reasonably likely to adversely affect the small business issuers 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 small business
issuers internal control over financial reporting.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|                       |  |                              
|---------------------- |  | -----------------------------
|                       |  |                              
|Date:  August 11, 2006 |  | By:   /s/  Russel T. Williams
|                       |  | Russel T. Williams           
|                       |  | Chief Executive Officer