About 30,000 people attended last year, said John W. Olcott, the president of the trade group, which represents operators and suppliers of private corporate aircraft.

It represents suppliers and manufacturers on the Strategic Forum for Construction.

ABMEC represents the designers, manufacturers and suppliers of mining equipment within the UK.

The RMS also serves the needs of its company members who represent the major manufacturers and suppliers of microscopes, equipment and services.

The committee also represents end users, wireless suppliers, system integrators, research firms, consultants, government agencies, and industry consortia.

Allied members, representing suppliers to the trucking industry, also have representation within the organization.

The Council represents grocery manufacturers and suppliers and described itself as "a powerful lobby group".

The association represents contractors, suppliers, and manufacturers involved in water, sewer, gas, electric, telecommunications, site work, and other segments of the industry across the country.

The committee members represent suppliers with claims of nearly $90 million.

Robert L. Roth, a Washington lawyer who has represented hospitals and suppliers of medical equipment, said: "The interests of providers and beneficiaries are aligned.