LEAD: Companies Companies Motorola plans to announce a portable telephone that can be used anywhere on earth.

LEAD: Companies Companies The first contracts for work on a space station were awarded to four contractors.

Gains for Women-Owned Companies Companies owned by women are growing at double the rate of all small businesses in the nation, according to a research group.

Companies Companies are increasingly requiring employees to fly in economy class and stay in less expensive hotels in a drive to cut costs.

LEAD: Companies Companies Another major New Jersey bank is being taken over, the third such deal to be announced in less than a week.

LEAD: Companies Companies Tenneco expects to receive $7.3 billion in cash from the sale of its oil and gas operations.

LEAD: Companies Companies G.M. plans to buy back up to 20 percent of its common stock over several years.

LEAD: Companies Companies General Electric plans to buy back $10 billion worth of its stock during the next five years.

LEAD: Companies Companies Most airlines will curtail a popular discount fare.

LEAD: Companies Companies The advertising industry's fixed commission system could be changing.