- Andrew J. Joyce, Carriage Manufacturer1
- Arbuckle Bros.3
- Arbuckle-Ryan Co.2
- Arbuckles & Co.1
- Arbuthnot, Stephenson & Co.1
- Argus Company1
- Arkell Weekly Co.1
- Art Stove Company1
- Ashepoo Phosphate Co.1
- Astor House1
- Atchison Foundry Works1
- Atlantic Coast Lumber Co.1
- Atlantic Hotel1
- Atlantic Manufacturing Company1
- Atlantic Paint Co.1
- Atlantic Screw Works1
- Aug. Steffen1
- August F. Richter1
- Augustus Pollack1
- Automatic Vaudville Parlor1
- Avenue Hotel1
- Avery, Snell & Co.1
- B. & J. Saylor1
- B. E. Block & Bros. Inc.1
- B. Gloeckner & Co. Inc.1
- B. M. Ford & Co,1
- B. U. Young & Co.1
- Bailey & Noyes1
- Baker Bottling Works1
- Baldwin & Howell1
- Baldwin the Clothier1
- Ball, Black & Co.1
- Baltimore Bargain House3
- Baltimore Pearl Hominy Mills1
- Bank of Commerce1
- Banner Milling Co.1
- Barbee Wire & Iron Works1
- Barker Bros.1
- Barnard, Sumner, and Putnam Company1
- Barnes & Park1
- Barrons Manufacturing Co.1
- Bauch & Sons Company1
- Bawo & Dotter3
- Bayle, Lacoste & Co.1
- Beacon Falls Rubber Shoe Co.2
- Bean & Rabe1
- Beeson Paper Co.1
- Behning & Son1
- Belding Manufacturing & Refrigerators1
- Belknap Hardware & Mfg. Co.1
- Bell Brothers1
- Bell Paint Co.1
- Bemis & Call Hardware and Tool Co.1
- Benedict & Burnham Mf'g Co.1
- Benedict Mfg. Co.1
- Bentley & Gerwig Furniture Co.1
- Berdan & Company1
- Berry Seed Co.2
- Bethesda Mineral Spring Co.1
- Big Rapids Furniture Manufacturing Co.2