Top 10 agencies

• Shutterstock images rating-4.44
• Fotolia rating-3.97
• Dreamstime rating-3.83
• Mostphotos rating-3.67
• Alamy rating-3.52
• iStockPhoto rating-3.38
• Veer Marketplace rating-3.33
• First Light rating-3.33
• ClusterShot rating-3.29
• Getty Images rating-3.27