Short answer. Yes. Rule 39, Section 37 provides that service of the examination order binds all credits due the judgment obligor, and all of the obligor's money and property in your possession or control, from the time you are served. So the freeze takes effect at service itself, not at some later ruling.
What the law says
the court may, by an order, require such person, corporation, or other juridical entity, or any officer or member thereof, to appear before the court or a commissioner appointed by it, at a time and place within the province or city where such debtor resides or is found, and be examined concerning the same.
Rule 39, Section 37 — Examination of obligor of judgment obligor. Read the full provision →
What the law says
The service of the order shall bind all credits due the judgment obligor and all money and property of the judgment obligor in the possession or in the control of such person, corporation, or juridical entity from the time of service
Rule 39, Section 37 — Examination of obligor of judgment obligor. Read the full provision →
The examination order and when it's issued
Rule 39, Section 37 comes into play when a writ of execution against the judgment obligor's own property has come back showing the judgment is still unsatisfied, in whole or in part. Upon proof satisfying the court that a person, corporation, or other juridical entity — such as your company — either holds property of the judgment obligor or owes the judgment obligor a debt, the court may, by an order, require such person, corporation, or other juridical entity to appear and be examined about it before the court or a commissioner it appoints.
What the order requires you to do
The order directs your company, or an officer or member of it, to appear at a time and place within the province or city where your company resides or is found, to be examined concerning the property or debt in question. This examination process exists precisely because the judgment obligor's own assets were not enough to satisfy the judgment, so the court is looking to what third parties like your company hold or owe.
The service-triggers-the-freeze rule
On the timing question you're asking about, the article is explicit: the service of the order shall bind all credits due the judgment obligor and all money and property of the judgment obligor in the possession or in the control of such person, corporation, or juridical entity from the time of service. So the binding effect attaches the moment the order is served on your company, not upon the examination being conducted or upon any further ruling the court makes afterward.
What is bound, specifically
What gets bound is specifically defined: all credits your company owes the judgment obligor, and all money and property of the judgment obligor that your company possesses or controls. The court may also require that notice of the proceeding be given to any party to the action, in whatever manner it considers proper, so other parties can stay informed of what is effectively a freeze reaching your company's obligations to the judgment obligor from the moment of service.