Wheaton's corporate presence is characterized by financial services, religious publishing, and public sector employment.
* **First Trust Portfolios L.P.**: A major financial services and investment management firm headquartered in Wheaton, serving as one of the city's largest private employers. * **Crossway**: A prominent not-for-profit Christian ministry and publishing house headquartered in the city, known for publishing the English Standard Version (ESV) Bible. * **DuPage County Government**: As the county seat, the sprawling county complex in Wheaton employs thousands in administration, judicial services, and public works. * **Wheaton College**: A major educational and economic anchor, employing hundreds of faculty and administrative staff.