The phrase "available internally" is correct and usable in written English.
It can be used to indicate that something is accessible or obtainable within a specific organization or system, rather than externally.
Example: "The new software updates are available internally for all employees to access."
Alternatives: "accessible within the organization" or "obtainable internally".
That information was available internally.
At times, if additional disclosure is requested and the information is available internally, it may be relatively easy to appease the filer by providing such information.
Without getting too technical, it seems that the online software available for this set is outdated, but the new software is only available internally to Pure and its repair agents.
While more information is available internally, there still are usually big information gaps in areas such as wanted-versus-unwanted attrition, average tenure of employees, and allocation of training funds.
The New York Times reported that work virtually came to a standstill when Mr. Getler's criticism — "lobbed like hand grenades" — became available internally before it ran in the Sunday paper.
The tool was developed by the team operating in Boston, and is only available internally inside Facebook.
Some references may be available only internally to Cornell.
In assessing the potential production chemistry problems, it is not necessary to become a chemist; it is assumed that some specialist assistance will be available either internally, through consultants or through the service sector.
There are accessibility problems associated with the basic services available to internally displaced persons at Lac Vert.
A total of $165,574 has been provided to UNFPA to ensure reproductive health and protection outreach services can be made available to internally displaced people in evacuation centres and to those who have returned home to flood-affected areas.
By displacing the center of rotation medially, more fibers of the anterior and posterior parts of the deltoid muscle are recruited for anteflexion or abduction of the arm and therefore fewer fibers are available to internally or externally rotate the arm [ 5].
