Nautilus General Contractors offers engineering, cost estimation, construction management and consulting services. The company maintains operations and serves clients in Southern California and Arizona. It is also licensed to operate in Nevada and Colorado. Nautilus General Contractors specializes in building repair, reconstruction, renovation and rehabilitation. The company provides tenant improvement services to commercial building owners and tenants. Its sister company, Nautilus Building Consultants, offers forensic consultation and reconstruction planning services, as well as assists owners, insurance carriers, contractors and subcontractors in assessing, processing and presenting relevant facts during legal disputes. Nautilus General Contractors also serves clients through its other sister company, Nautilus Custom Builders.