Several errors occurred in last week's compilation of Washington's Top 100 companies. Assets of Potomac Electric Power Co. as of Dec. 31, 1982, totaled $2.7 million. Pepco ranks third in assets, behind C&P Telephone and Martin Marietta Corp. Assets of BDM Corp. as of Dec. 31, 1982, totaled $53.7 million, 35th among Washington nonfinancial companies. BDM now has 2,450 employes and about 85 percent of its business is defense-related. The firm's profits increased 46 percent last year; revenue was up 34 percent. Assets of Manor Care Inc. as of the end of its fiscal year on May 31, 1982, totaled $426.5 million, 14th in the area. Now traded on the New York Stock Exchange, the Silver Spring health care firm has 1,700 employes in the Washington area and 16,000 worldwide. It was incorrectly reported that Syscon Corp. was acquired by Continentel Telcom. Continental Telcom acquired STSC Corp. With sales of $71.4 million, Syscon ranks 33rd among Washington-area nonfinancial corporations. Evaluation Research Corp. was omitted from the listings; the firm ranks 54th in revenues at $17.3 million. Profiles of Syscon and Evaluation Research appear on this page. The Norfolk Southern Railroad was removed from the Washington companies list after the newly merged railroad said it was consolidating headquarters operations in Norfolk. With revenues of $3.3 billion, and assets of $6.8 billion, Norfolk Southern ranks second among Virginia corporations. Earnings last year totaled $411.4 million ($6.57 a share). PHH Group and Allegheny Beverage Corp. were not listed among the 10 largest Maryland corporations based outside the Washington area, though both are larger than Easco Corp., the smallest industrial firm listed. PHH of Hunt Valley, a vehicle management and cost control firm, earned $29.6 million ($1.93 a share) on revenues of $471.7 million. Allegheny Beverage, a Pepsi-Cola bottler and owner of The Macke Co. in Washington, earned $9.4 million ($2.30 a share) on revenues of $453.4 millio

Allbritton Enterprises DESCRIPTION: Through his holding company, Perpetual Corp., Washington financier Joe L. Allbritton operates a multimillion-dollar personal conglomerate and controls insurance, banking and broadcasting properties. FOUNDED: 1978 TOP EXECUTIVE: Joe L. Allbritton, chairman DEVELOPMENTS: Now chairman of Riggs National Corp., parent of Riggs Bank, Allbritton came to Washington from Texas when he purchased The Washington Star nearly a decade ago. He has since become one of the city's most visible entrepreneurs. In the last year, he has moved the headquarters of Perpetual Corp. to Washington and consolidated his operations here. Allbritton owns a 41 percent stake in Riggs, which he used to shake up the bank's management and take over as chairman last year. His principal operations include Pierce National Life Insurance Co. in California and Allbritton Communications Co., which owns WJLA-TV (Channel 7) in the District. The communications company purchased two new television stations in Oklahoma and Arkansas last year and owns others in Lynchburg, Va., and Charleston, S.C. plus daily newspapers in Trenton, Paterson and Union City, N.J., and weeklies in Massachusetts. Blake Construction Co. DESCRIPTION: One of the area's largest, family-owned general contracting companies. The company, which specializes in government work, also is involved in real estate development and management. It has about 200 employes. FOUNDED: 1949 TOP EXECUTIVES: Howard M. Bender, chairman; Stanley Prill, president and chief operating officer DEVELOPMENTS: The firm has played a key role in a number of local construction projects, including the headquarters for the National Association of Home Builders, the George Washington University Library and the Department of Energy's James Forrestal Building. Bureau of National Affairs DESCRIPTION: An employe-owned business that publishes legal, economic, labor, tax, financial, environmental, safety and energy information for business and professional users. FOUNDED: 1929 TOP EXECUTIVES: John D. Stewart, chairman; William A. Beltz, president and chief executive DEVELOPMENTS: BNA is an authoritative information service with a film division that produces documentaries on personnel management, but its main interest is publishing. BNA's attention throughout 1982 was focused on a takeover bid by the Thomson publishing empire. All BNA stock, currently valued at about $18 per share, is owned by its 1,400 employes or by retired workers. Thomson is offering "not less than $50," but cannot buy any of the stock unless the employes agree to change BNA's charter. Management is resisting the Thomson bid, and so far the workers have supported management's position, preferring continued independence to quick cash. CEI Construction Inc. DESCRIPTION: CEI was formed in 1981 as the holding company for the George Hyman Construction Co., the area's largest union contractor and for Omni Construction Co., the biggest local nonunion construction firm and related businesses. Also owns other construction firms including A.J. Clark Co. of Bethesda, Clark-Morris Co. of Dallas, Wrenn-Wilson Construction of Durham, N.C., HRW Systems of Bladensburg and Clark-Kenith Inc. of Atlanta. FOUNDED: 1949 TOP EXECUTIVES: Benjamin T. Rome, chairman; A. James Clark, chief executive DEVELOPMENTS: Clark Enterprises construction companies are far and away Washington's largest contractors according to Engineering News Record, the bible of big builders, with as much as $1 billion worth of projects under construction at resource recovery plants. In a business where even big companies are often run on a job-by-job, day-by-day basis, CEI has earned a national reputation for its industrial-style organization, meticulous planning and scheduling and careful financial management. Donohoe Construction Co. Inc. DESCRIPTION: General contractor, builder and developer specializing in commercial and residential real estate with commercial leasing and management operations as well. FOUNDED: 1884 TOP EXECUTIVES: Clarence F. Donohoe Jr., chairman; Richard J. Donohoe, president DEVELOPMENTS: Donohoe celebrates this year a pair of golden anniversaries--100 years in business and $100 million in business. Despite a slowdown in construction, Donohoe's business for the year was up 21 percent. The 115-unit Paradise Garden housing project for Bishop Walter McCullough's downtown congregation is being built by Donohoe. The company's own $50 million Holiday Inn Internationale and office project is nearing completion on Rockville Pike. A new Embassy Suites division is building the first two of several planned luxury suite hotels, in Tysons Corner and Crystal City. Donohoe is both a partner and general contractor in Park Place of Rosslyn, as it was on the Georgetown Park shopping center, one of the techniques that permits its construction operations to continue in a down economy. Howard P. Foley Co. DESCRIPTION: A general, industrial, commercial and power-line electrical contractor. FOUNDED: 1911 TOP EXECUTIVES: E. Kendall Lorenz, chairman; Bancroft T. Foley Jr., president DEVELOPMENTS: The low-profile, high-volume electrical contractor handled $175 million in 1982 volume, according to Dun & Bradstreet. The Foley headquarters is in downtown Washington at 888 17th St. NW, but few of its 4,100 employes work in the city. Job sites range across the United States, Canada and the Caribbean. Kettler Brothers DESCRIPTION: A builder in Virginia, Maryland and the District. Kettler is developing the planned community of Montgomery Village in Gaithersburg and is involved in two luxury townhouse projects--the District's Westover Place and Rockville's North Farm. FOUNDED: 1952 TOP EXECUTIVE: Clarence E. Kettler, president DEVELOPMENTS: Kettler Brothers went through a reorganization last year, following the death of board chairman Milton E. Kettler. The company--now run primarily by Clarence E. Kettler--has recently purchased the Hidden Valley resort in Pennsylvania for about $9 million. It plans to build a 2,000-unit hotel-condominium complex there over the next 15 years. Also underway is the 350-acre Cove Creek waterfront resort community on Maryland's Eastern Shore. Kettler Brothers' residential sales went just as expected in 1982--with 350 sales made during the year. In 1983, the firm has already sold 250 houses, and Clarence Kettler is optimistic about meeting the projection of 400 house sales for the year.

Koons Automotive Organization DESCRIPTION: An auto sales empire that includes the largest Ford dealership in the world and 12 other locations. FOUNDED: 1964 TOP EXECUTIVE: James E. Koons, president DEVELOPMENTS: The Seven Corners Ford dealership has annual sales estimated at more than $35 million and for more than 15 years has been the No. 1 dealership for Ford Motor Co. But within the Koons empire, the Ford store is rivaled by JKJ Chevrolet, which sold more Chevies than Seven Corners sold Fords. A company spokesman said 1982 was a record-setting year for the family-owned firm, whose holdings stretch as far as Hollywood, Fla. Koons sells such abroad range of autos that when Giant Food Inc. decided to give away 100 domestic cars from every manufacturer, it was able to order them all from Koons. Chevy, Ford, Pontiac, Oldsmobile, Chrysler, AMC, Renault, Toyota, Honda dealerships were joined by the newest--an Annapolis Porsche and Audi outlet. Each is operated as an independent entity and there are also leasing and distribution businesses. Mars Inc. DESCRIPTION: A worldwide food-processing empire consisting of autonomous divisions reporting to headquarters in McLean. Mars is one of the largest privately held firms in the United States, with heirs of founder Frank Mars controlling almost all of the stock. Mars produces M&Ms, Milky Way and Snickers candy, Kal Kan pet food, Uncle Ben's rice and other food products. The company has 15 manufacturing plants in the United States and 26 more abroad, mostly in Western Europe and Australia. FOUNDED: 1920 TOP EXECUTIVES: Forrest E. Mars Jr. and John F. Mars, grandsons of the founder, share the title of president. Along with their sister, Jacqueline Mars Badger, they are the only members of the board of directors. DEVELOPMENTS: Mars releases no information on revenues or profits. With estimated worldwide sales of at least $3 billion last year, Mars is a giant of the food-processing industry, larger than Pillsbury, H. J. Heinz and Quaker Oats and more than twice the size of its arch rival, Hershey Foods. The company has about 5,000 workers in its U.S. plants and an estimated total of 15,000 to 20,000 worldwide. The exact number is not known because most Mars operations are nonunion, reflecting a company-wide tradition of paternalism in labor relations. The heads of individual divisions are said by food industry experts to be under strict requirements to achieve a return on investment of at least 13.5 percent a year; failure to do so results in a reduction of their own compensation. Through aggressive pricing policies and heavy advertising, Mars products have achieved a dominant position in the U.S. candy market, boosting their share of the industry's $5 billion annual sales to an estimated 40 percent, mostly at the expense of Hershey. Howard L. Walker, head of the candy division, said in an unprecedented interview with The Washington Post in 1981 that the company planned to expand its market further by moving into snack foods other than candy, and by emphasizing the nutritional value of what it calls "Now Foods." Advertising Age magazine estimates that Mars spent $83.7 million on U.S. advertising in 1980, making it the 58th largest advertiser. In one of its rare marketing mistakes, Mars refused to allow its M&Ms candies to be used in the popular movie "E.T. The Extraterrestrial." The moviemakers instead used Hershey Foods' Reese's Pieces, giving that product a big boost in its competition with M&Ms. Oliver T. Carr Co. DESCRIPTION: One of the largest and oldest development firms in the Washington area. FOUNDED: 1910 TOP EXECUTIVES: Oliver T. Carr, president; Robert Carr, vice president of development; Richard Carr, vice president of acquisition DEVELOPMENTS: The Oliver T. Carr Co. completed two major projects last year--1825 I St. NW, the final phase of its vast International Square development fronting on K Street between 18th and 19th streets NW and 2121 K St. NW, an office-retail project. Nearing completion now is the first phase of Metropolitan Square, a 386,000-square foot office and retail project opposite the U.S. Treasury. Also underway are 1255 23rd St. NW, a 270,000-square-foot mixed-use project in the West End neighborhood, where Carr has been the major developer. Also under construction are the Clark Building, a 270,000-square-foot office building in Bethesda and King Street Station, a 132,000-square-foot project in Alexandria. Next on the Carr company schedule are the $211 million, 3.7-acre Metro Center project downtown that will have offices and stores including a new flagship for The Hecht Co., and the renovation of the Willard Hotel on Pennsylvania Avenue NW.

Ourisman Enterprises DESCRIPTION: Chevrolet, Dodge and two Ford dealerships FOUNDED 1921 TOP EXECUTIVE: Mandell Ourisman, chairman; John Ourisman, president DEVELOPMENTS: Ourisman delivered 11,701 cars in 1982, a major gain in what was nationally the worst domestic auto-sales year in two decades. The company opended an Aexandria Ford dealership a year ago, when Ford sales were bottoming out, and John Ourisman says he expects an overall increase in Ford sales this year. Mandell Ourisman, whose business interests extend far beyond the auto business, says he will continue to expand by purchasing dealerships and might even consider dropping his unusual all-domestic strategy to open an import store.

Raleigh Stores Corp. DESCRIPTION: A Washington-based retailer of clothing with 12 stores in the metropolitan area. FOUNDED: 1911 TOP EXECUTIVE: Sidney Lansburgh Jr., president and chief executive officer DEVELOPMENTS: Raleighs opened its 12th store at Fair Oaks Mall in Fairfax this year, consolidating its position as the biggest clothing retailer in the Washington area. In the tradition of the garment trade, Raleighs never discusses its business in public, but it's no secret that Hart, Schaffner & Marx regards Raleighs as one of its oldest and very best customers. The 900 Raleighs employes sell men's suits the way Rosenthal and Koons sell cars--by the acre. Ringling Brothers and Barnum & Bailey Combined Shows DESCRIPTION: A three-ring conglomerate with two circus companies, a monster magic act and ice shows. FOUNDED: 1870 TOP EXECUTIVES: Irvin Feld, chief executive officer and co-owner with his son, Kenneth DEVELOPMENTS: The Greatest Show on Earth became a Washington business last year when those fearless father and son showmen, Irvin and Kenneth Feld, repurchased Ringling Brothers and Barnum & Bailey's Circus from the Mattel toy conglomerate for $22.8 million. "The good lord never meant for a circus to be owned by a corporation," the elder Feld proclaimed after announcing the deal beneath a rainbow of balloons launched by a bevy of beauties. From a New Mexico Avenue NW headquarters that looks like it was decorated by a ringmaster, the Felds live out a profitable fantasy. Analysts estimate the Greatest Show on Earth itself turns a $5 million profit on $40 million worth of popcorn, ponderous pachyderm parades and pure entertainment.

Rosenthal Automotive Organization DESCRIPTION: One of the largest, fastest-growing auto dealership groups in the Washington area, based in Arlington. FOUNDED: 1953 TOP EXECUTIVE: Robert M. Rosenthal, president DEVELOPMENTS: The Rosenthal Organization began as Rosenthal Chevrolet, but the growing importance of imports in the domestic auto market has changed the company. Of Rosenthal's seven dealerships, only two are domestics--Dodge and Chevrolet. The other five sell Hondas, Datsuns, Mazdas, Jaguars and Toyotas. There's also an insurance company and an advertising agency. In a market where domestics have been taking it on the nose, the Rosenthal strategy is working. The 1,000-employe company delivered 22,753 cars and trucks to customers last year for more than $200 million in sales. This year's Rosenthal sales are running at a seasonally adjusted annual rate 36 percent above last year's level, which is why company officials say they expect to do a $300 million business in 1983. Four more Rosenthal dealerships are in the works, including a Datsun shop scheduled to open this month and a Honda shop that will start up around November. Rosenthal officials are mum on what will be sold in the other two, but it's probable they will go import, too, especially since Isuzu and Mitsubishi are searching the country for a few good dealers.

Satellite Business Systems DESCRIPTION: A joint venture of Comsat General Corp., International Business Machines Corp. and Aetna Life & Casualty, SBS is a satellite communications company that offers private, high-capacity telephone networks to transmit voice, data and video messages, primarily for large companies with high-volume communications requirements. The McLean company also provides long distance phone service. FOUNDED: 1975 TOP EXECUTIVE: Robert C. Hall, president and chief executive officer DEVELOPMENTS: Last November, the Space Shuttle Columbia blasted off caring the third SBS satellite and by the end of the year, SBS's revenues, also were heading for orbit. With several new services, sales shot from $5.3 million to $39.1 million. After years of legal and technical problems, 1982 indicated that SBS is beginning to show the potential that led three corporate giants to make an investment of nearly $600 million. SBS has a contract with NASA to launch a fourth bird and an application pending with the Federal Communications Commission for a fifth. With two additions already this year, SBS has 17 corporate customers using its private communcations network. SBS began Message Service I, its first national network and in late December inaugurated a second network called SBS Skyline that provides long-distance residential phone service. This is expected to be another year of rocketing growth for SBS, which has about 1,200 employes in the Washington area. Temporaries Inc. DESCRIPTION: Temporaries Inc. is a services firm with 28 offices around the country. Temporaries specializes in clerical and secretarial services, though its recent venture into the health-care market contributes about 5 percent to its revenues. The firm also is starting to move into the home-care market and has started to provide respiratory care specialists. FOUNDED: 1969 TOP EXECUTIVE: Barry Wright, president and chief executive DEVELOPMENTS: "This is the first time we had to report something negative," says Barry Wright, president of the 14-year-old firm. Business was off 20 percent last year, but the firm still posted a modest profit, he says. The temporaries market bottomed out last fall, and Wright says he expects to regain lost ground in 1983, bringing the firm's revenues back to $35 million. U.S. News and World Report DESCRIPTION: Employe-owned magazine publishing and information services company. U.S. News & World Report magazine is the cornerstone of the business and chief revenue producer. FOUNDED: 1933 TOP EXECUTIVES: Samuel J. Keker, chairman; James H. McIlhenny, president DEVELOPMENTS: U.S. News will celebrate its 50th anniversary this year by moving into a new eight-story headquarters building at 23rd and N streets NW. The building is the first stage of a $200 million joint venture with Boston Properties that will include a 450-room hotel, more offices and condominiums. On the publishing side, the magazine increased its guaranteed weekly circulation by 50,000 copies last year and now has a total weekly distribution of nearly 2.1 million. The company scrapped most of its book-publishing operation in a cost-cutting move. Parkway Productions, acquired a year earlier, is the leading producer of "fine arts programming" for radio stations. U.S. News has about 825 employes, 500 of whom are in Washington. Revenues are expected to exceed $100 million this year. Weaver Brothers Inc. DESCRIPTION: One of the region's largest privately owned mortgage banking and real estate firms, based in Chevy Chase with 315 employes. FOUNDED: 1888 TOP EXECUTIVES: Clarence Dodge Jr., chairman; Martin F. West Jr., president DEVELOPMENTS: According to Dun & Bradstreet, Weaver Brothers' sales are about $19 million. The firm is involved in real estate development and management of shopping centers, apartments and other commercial properties, leasing and insurance, with offices from Gaithersburg to Richmond and Virginia Beach. Weaver's loan portfolio exceeds $1 billion.