The GREYLOCK is a business credit card from GREYLOCK. The annual fee is No annual fee.. The ongoing APR is Current rates vary between 10.75% - 18.00%. after a 0% APR for 12 months introductory rate for 12 months. Signup bonus: 10,000 bonus points after spending $500 within 90 days of account opening.. Rewards: 3x points for gas, 2x points for restaurants and groceries, 1 point for all other purchases.. This product does not report routine activity to your personal credit (only on default if a personal guarantee is required).