I've recently written a piece of software (without any other contributors) for a company which I part own. I was wondering if I could distribute it with the following permission notice, which is a modified version of the MIT License. Are there any obvious risks if I do distribute with this licence and does it give me the right to reuse the code in other projects?
  Permission is hereby granted, to any person within CompanyName (the
  "Company") obtaining a copy of this software and associated
  documentation files, excluding any third party libraries (the
  "Software"), to deal with the Software, with limitations restricted to
  use, copy, modify and merge, the Software may not be published,
  distributed, sublicensed and/or sold without the explicit permission
  from AuthorName (the "Author"). This notice doesn't apply to
  sections of the Software where copyright is held by any persons other
  than the Author.
  
  The Author remains the owner of the Software and may deal in the
  Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or
  sell copies of the Software.
  
  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.