• Dan Leyendecker, PE
  • Derek Naiser, PE, CFM
  • Robert Viera, PE, RPLS
  • Eric Trejo, PE, SECB
  • Janna Lenz, CPA
  • Logan Burton, PE, CFM
  • Marcus Naiser, PE
  • Byron Sanderfer, PE, CFM, LEED AP BD+C
  • Amy Hesseltine, PE
  • Eric Villarreal, PE
  • Sergio Canales, RPLS
  • Al Garza, PE
  • Alan Thompson, PE
  • Clifton Kuecker

Firm Overview

LNV’s history begins with the architectural/engineering firm of Smith & Russo, established in 1962. In April 2000, Dan Leyendecker, Derek Naiser and Robert Viera acquired the company to found LNV. Their vision was to develop a firm that provided technically sound, cost-effective solutions for public and private clients.
In 2004, LNV opened its first branch office in San Antonio. Three years later, the firm expanded its services to include architecture and environmental. LNV opened the doors to its Austin office in 2008.
By 2013, the firm further expanded its presence across the state with the opening of its Laredo and Fort Worth offices.


    Minority Certifications

  • DBE: Texas Unified Certification Program (TUCP) – Corpus Christi Regional Transportation Authority (CCRTA)
  • HUB: State of Texas, Texas Comptroller of Public Accounts (CPA)
  • MBE: North Central Texas Regional Certification Agency (NCTRCA)
  • MBE: South Central Texas Regional Certification Agency (SCTRCA)
  • MBE: National Minority Supplier Development Council (NMSDC) - Southwest Minority Supplier Development Council (SMSDC)

  • Firm Registrations

  • Texas Board of Professional Engineers (TBPE), No. F-366
  • Texas Board of Architectural Examiners (TBAE), No. BR 599
  • Texas Board of Professional Land Surveying (TBPLS), Corpus Christi No. 10126500
  • Texas Board of Professional Land Surveying (TBPLS), Austin No. 10126501
  • Texas Board of Professional Land Surveying (TBPLS), San Antonio No. 10126502
  • Kentucky Board of Engineers and Land Surveyors (Engineering), No. 2720
  • Oklahoma State Board of Licensure for Professional Engineers and Land Surveyors (Engineering), No. 5436
  • Centralized Master Bidders List (CMBL), No. 1742951947700

  • TxDOT Areas of Certification


Partial Client List

- Department of the Navy
- Department of the Army
- Defense Logistics Agency
- Texas Department of Transportation
- Texas Water Development Board
- Texas Commission of Environmental Quality
- Texas Parks and Wildlife Department
Local Government Agencies
- Municipalities
- Counties
- River Authorities
- Water Suppliers
Educational Institutions
- Universities and Colleges
- Independent School Districts
- Private Schools
- Libraries
- Feed yards
- Petrochemical Refineries
- Solid and Liquid Waste Facilities
- Chemical Plants
- Private Developers
- Franchises
- Contractors