Because of licensing issues contacting the designer is your best option. The space character is about the easiest adjustment possible so they shouldn't charge you much if they are willing to do so. Also, I'm not very familiar with the workings of InDesign, but I think it offers space options that override that of the font.

With InDesign you can adjust the word spacing for a Paragraph Style in the Justification settings. Then apply that style to the text. Also works for text that's flush left, etc.

Thanks Guys!

We considered the ability change the word spacing in InDesign and Illustrator but seeing as someone in the company might use the typeface is MS Word, Powerpoint, etc. we were hoping to find an option that wouldn't require any adjustments on the users end.

I will give the type designer a shout and see if we can an adjusted version.

Thanks again for the help!

With PowerPoint you could makes slides in InDesign, then export them as JPEGs and place the JPEGs in the PPT. But obviously that won't work for staff that doesn't know InDesign.

I think the OP is right to modify the font to work out of the box, rather than hope that most (any?) users will follow guidelines, use stylesheets, or care even one whit about wordspacing. In fact, you could argue that it's the duty of the branding designer to anticipate and remove as many of those responsibilities from the end user as possible.

(Letterspacing can be adjusted in PowerPoint and Word, and the space character is adjusted along with it, but I'm not aware of any way to adjust wordspacing independently.)