- G&K Services Incorporated
- Gaiam Incorporated
- Galaxy Nutritional Foods Incorporated
- Gameplan
- Games Incorporated
- GameStop Corporation
- Gannett Company Incorporated
- Gap Inc.
- Garden City Company
- Garmin Ltd.
- Gartner Incorporated
- Gateway Incorporated
- Gatx Corporation
- Gaylord Entertainment Company
- GEICO
- Gemstar-TV Guide International Incorporated
- Genentech Incorporated
- General Dynamics Corporation
- General Electric Capital Corporation
- General Electric Company
- General Growth Properties Incorporated
- General Maritime Corporation
- General Mills Incorporated
- General Motors Acceptance Corporation
- General Motors Corp.
- Genesco Incorporated
- Genesee & Wyoming Incorporated
- Genesis HealthCare Corporation
- Genesys SA
- Genius Products Incorporated
- Gennum Corporation
- Genta Incorporated
- Gentex Corporation
- Gentiva Health Services
- Genuine Parts Company
- GenVec Incorporated
- Genworth Financial Inc
- Genzyme General
- George Weston Limited
- Gerber Scientific Incorporated
- Getty Images Incorporated
- Getty Petroleum Marketing Incorporated
- Getty Realty
- Gildan Activewear Incorporated
- Gilead Sciences Incorporated
- GlaxoSmithKline
- Global Crossing Limited
- Global Energy Incorporated
- Global Industries Limited
- Global Payment Technologies
- Global Payments Incorporated
- Globecomm Systems
- Gold Fields Limited
- Gold Standard Incorporated
- Goldcorp Incorporated
- Golden West Financial Corporation
- Golf Galaxy Incorporated
- Google Inc.
- Graco Incorporated
- Granite Construction Incorporated
- Great Atlantic & Pacific Tea Company Incorporated
- Great Wolf Resorts Incorporated
- Greater Bay Bancorp
- Green Mountain Coffee Incorporated
- Greif Incorporated
- Greyhound Lines Incorporated
- Griffin Land & Nurseries Incorporated
- Grubb & Ellis Company
- Grupo Televisa SA
- GSI Group Incorporated
- GTE North Incorporated
- Guaranty Corporation
- Gucci Group NV
- Guess, Inc.
- Guidant Corporation
- Gulf Power Company
- Gymboree Corporation (The)
- Gyrodyne Company of America Incorporated