The economic research firm said that among component measures, the largest gains were made in new orders for goods industries and consumer confidence.
Over six months, Germany's LEI rose 2 percent, which equates to an annual rate of about 4.1 percent, the Conference Board said.
Six of seven component indexes increased in the month with yield spreads, new orders in investment goods industries, consumer confidence, inventories, orders for new construction projects and gross enterprises and properties income.
Stock prices was the only one in decline in July, the research firm said.
The LEI for Germany now stands at 105.4. The index uses 2004 as a base year, assigning that year a value of 100.