PLACE HOLDER

Who is 3Tier?

3Tier is DOT (multiple states) certified Disadvantaged Business Enterprise (DBE) as well as Small and Minority certified in certain jurisdictions. As an engineering design firm, we fall under the Architectural and Engineering Services.

S/M/DBE AES Firm

What does 3Tier do?

3Tier is a full service Mechanical, Electrical, Plumbing, and Process (MEPP) Engineering and Consulting firm and Civil Engineering experience with COA firm licenses in several states including NC† and FL. Tailored MEPP systems designed or engineered as the Engineer of Record, sub consultants, or can assist as third party QA/QC reviewers for Federal, State, Municipal, Industrial, and commercial clients.

In addition to helping meet minority participation goals, 3Tier’s personnel has experiences in several specialized codes/standards, such as NFPA 502 – Standard for Road Tunnels, Bridges, and Other Limited Access Highways, NFPA 820 – Standard for Fire Protection in Wastewater Treatment and Collection Facilities and 10 States Standards and ASME NQA-1 – Nuclear Quality Assurance Certification.

3Tier’s Unique Identifiers & Classification System Codes

3Tier’s Federal Identifiers

  • UEI – R6LLZ4FJNYT7
  • DUNS (deprecated) – 117002102
  • Cage Code – 8FP50

3Tier’s Classification System Codes

NAICS Codes

  • 541330
  • 541340
  • 541420
  • 221310
  • 221320
  • 221330

NAICS Codes

  • 541330
  • 541340
  • 541420
  • 221310
  • 221320
  • 221330

Description

  • Eng. Services Prof.
  • CAD/Drafting Services
  • Industrial Design Services
  • Water Treatment Plants or Facilities
  • Sewage Treatment Plants or Facilities
  • HVAC Eng.