Corteva Agriscience

It’s about chemistry.

We understand that selecting an architect is really about finding that team that is the right fit. We believe every great vision must embody our client’s aspirations. The best way to do this is through collaborative dialogue. We seek diversity in our clients and projects because we believe passionately that success lies in bringing people and perspectives together. A truly successful project is not only one  that is beautifully designed and exceeds our clients expectations, it is one where a lasting relationship is fostered and forged.

We are very excited about this potential partnership and look forward to continuing the conversations with you.




  • Design Excellence
    45 Design Awards
  • Regionally proven design team
    102 designers in four studios
  • Committed firm leadership
    Principal led projects
  • Relationship driven
    75% of our work is repeat clients
  • Who we are

Working with us

What you can expect from us

  • an ego-free & respectful, collaborative spirit

  • technical expertise

  • commitment to design excellence

  • partners in workplace change management

Your team of experts

Danielle Hermann Principal
OPN Des Moines
Joseph Feldmann Associate Principal
OPN Des Moines
Project Manager

Principal Master Planning

In 2011, OPN started working with Principal to redesign its corporate headquarters in downtown Des Moines. Our work began as a straight-forward study of the campus environment with the goal of modernizing existing facilities and consolidating open space. With leadership from Principal, the design team embarked on an intensive discovery process. We began by analyzing the existing campus and buildings while concurrently conducting in-depth conversations with Principal about history, culture, work practices and the company’s vision for the future. It quickly became clear that Principal had an opportunity to re-imagine its environment and work practices.

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Our Work

Our Portfolio

What we're saying

What our clients are saying

We enjoyed the opportunity to work with OPN Architects on the Delta Dental of Iowa Headquarters in Johnston, Iowa. OPN kept our company’s culture top-of-mind while they designed an open-office space for our employees. The new facility was designed to foster a collaborative and open work environment with a high degree of transparency, where all employees are accessible and visible. Our experience working with OPN was exciting as they kept us involved throughout the entire design process. We felt that they took the time to listen to our needs and respond to it in the design. We are very pleased with the overall results of the project and highly recommend OPN Architects. Donn Hutchins, Former President & CEO, Delta Dental of Iowa

Get in touch

Danielle Hermann, Principal-in-Charge