CLIENTS

                    Industry-Related Clients

                        Wireless Carriers

                                        Bell Atlantic Mobile - Philadelphia, PA

                                        Comcast Metrophone - Wayne, PA

                                        Conestoga Wireless - Pennsylvania

                                        D & E Communications - Pennsylvania

                                        Nextel Communications - Bensalem, PA

                                        Nextel Partners - Mechanicsburg, PA

                                        NYNEX - New York

                                        Omnipoint Communications - Pennsylvania

                                        Omnipoint Communications - New York

                                        PageNet - Staten Island, NY & Wayne, PA

                                        Sprint PCS - Mahwah, NJ

                              Tower Owners

                                        American Tower Corporation - Boston, MA

                                        Guaranty Towers, LLC - Newtown Square, PA

                                        Radio Communication Service - West Haven, CT

                                        SpectraSite - Cary, NC

                                        Suburban Cable - Absecon, NJ

                                        Unisite - Newtown, PA

                                        United Radio Incorporated - Syracuse, NY

                                        WFI/Entel - San Diego, CA

                                        WLIR - Garden City, NY

                                        WZBN - Hamilton, NJ

                              Consultants Misc.

                                        Anderson Engineering - Parkasie, PA

                                        ArcNet, LLC - Holmdel, NJ                                

                                        Atometricks Engineering - West Nyack, NY

                                        CDMI - Clark Summit, PA

                                        Collins, William F - Setauket, NY

                                        Communication Installers - Wynantskill, NY

                                        Cook Environmental - Trevose, PA

                                        FDH North America - Mobile, AL

                                        French and Parrello - Holmdel, NJ

                                        Goodkind and O'Dea, Inc - Mt Laurel, NJ

                                        Herbst Musciano Architects - Cedar Knolls, NJ

                                        Industrial Communications - Easton, PA

                                        Kuhn Radio Electronics - York, PA

                                        Pro-Comm - Berlin, MA

                            Other Clients

                                C. Marchall Friedman - St. Louis, MO

                                        GATX New York Harbor Unit - NY

                                        GATX Terminals Corp - Carteret, NJ

                                        GATX Terminals Corp - Elizabeth, NJ

                                        LHTW Corporation - Bensalem, PA

                                        Mobil Oil Corp - Linden, NJ

                                        NJ Division of Building & Construction - Trenton, NJ

                                        Joel David Zieden Architects - Princeton, NJ

                                        Kamlesh Shah Designs, Inc - Cranbury, NJ

                                        Paris Bakery - Hamilton, NJ

                                        Philadelphia Park - Bensalem, PA

                                        PSE & G - Harrison, NJ

                                        Rhone-Poulenc - New Brunswick, NJ

                                        Sun Oil Corp - Philadelphia, PA

                                        Wild Flowers - Pennington, NJ