The Vertex Companies, LLC (VERTEX) is a family of companies including:
- Neptune Fire Protection Engineering and Consulting LLC
- Lockwood, Kessler & Bartlett, Inc. (LKB)
- Xpera Inc. (Xpera Group)
- Compass Project Management, LLC
- Optistar Technology Consultants, Inc.
- VTX Consulting Services Inc.
- Vertex Ingenieros Consultores, S. de R.L. de C.V.
- VERTEX Tenant Improvement (TI)