Preferential trade agreements are growing in number and deepening in content by incorporating disciplines that go beyond market access. They increasingly encompass non-trade-related disciplines as diverse as intellectual property rights, environment laws, or labor market regulations. Moreover, because investment is complementary to trade, preferential trade agreements provide relevant institutional frameworks to partner countries that wish to regulate their foreign investments. This paper studies the impact of deep trade agreements on foreign direct investment and examines three sub-questions. First, is the impact of trade agreements on foreign direct investment heterogeneous across types of business activity? Second, is this impact heterogeneous across disciplines covered in the agreements? Third, does the level of development of home and host countries matter for this impact? The analysis exploits the World Bank’s data set on the content of preferential trade agreement and data on announcements of bilateral greenfield investment at the activity level. The findings show that deep trade agreements matter for investment: every additional discipline in a preferential trade agreement increases foreign direct investment by 1.4 percent, on average. Deep agreements do not impact foreign direct investment in natural resources and extractive activities and have heterogeneous effects across manufacturing- and services-related activities. The results also reveal that disciplines that go beyond the mandate the World Trade Organization matter more for foreign direct investment. Disciplines related to investment liberalization and protection, intellectual property rights, or migration increase foreign direct investment, whereas disciplines on labor market regulations reduce investment. The results are mostly driven by investment between developed and developing countries.