EXHIBIT 31



CERTIFICATION PURSUANT TO SECTION 302



I, Andriy Zinchuk, Chief Executive Officer
and Chief Financial Officer of Greenrock Ventures, Inc., certify that:



|1. |  | I have reviewed the
attached report on Form 10-Q.
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|2. |  | Based on my knowledge,
this 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;
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|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 registrant
as of, and for, the periods presented in this report;
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|4. |  | I am responsible for
establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules) for
the registrant and have:
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|a) |  | designed
such disclosure controls and procedures to ensure that material information relating to the registrant,
including its consolidated subsidiaries, is made known to me by others within those entities, particularly
during the period in which this report is being prepared;
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|b) |  | designed
such internal control over financial reporting to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for external purposes in accordance
with generally accepted accounting principles;
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|c) |  | evaluated
the effectiveness of the registrant's disclosure controls and procedures and presented in this report
my conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the
period covered by this report based on such evaluations; and
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|d) |  | Disclosed
in this report any change in the registrant's internal control over financial reporting that occurred
during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case
of an annual report) that has materially affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting; and
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|5. |  | I have disclosed,
based on my most recent evaluation, to the registrant's auditors and the audit committee of registrant's
board of directors (or persons performing the equivalent functions):
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|a) |  | all
significant deficiencies in the design or operation of internal controls which could adversely affect
the registrant's ability to record, process, summarize and report financial data and have identified
for the registrant's auditors any material weaknesses in internal controls; and
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|b) |  | any
fraud, whether or not material, that involves management or other employees who have a  significant role
in the registrant's internal controls.
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|Date: May 5, 2011 | By: | /s/ Andriy Zinchuk          
|----------------- | --- | ----------------------------
|                  |     | President and Director and  
|                  |     | Chief Financial Officer     
|                  |     | Principal Accounting Officer