Encontrei um artigo da wikipedia que pode ser útil:
"The oldest use of the term "executive suites" referred to the suite of offices on or near the top floor of a skyscraper where the top executives of a company worked, usually including at least the president or chief executive officer, various vice presidents and their staff."
Se este for o contexto que procura, fica minha sugestão: escritório corporativo/empresarial

Penso que se trata de um software auxiliar de gestão, tendo por base o texto da pergunta: business processes or functions

PT-BR
https://www.microsoft.com/en-us/language/Search?&searchTerm=...

PT-PT
https://www.microsoft.com/en-us/language/Search?&searchTerm=...

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Note added at 6 hrs (2020-01-30 10:27:00 GMT)
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https://psierp.com/lean-era-software/executive-suite/

Caro André, pelas minhas pesquisas, o termo indica o que hoje é muito comum no Brasil, áreas para escritório e/ou reuniões que podem ser compartilhadas ou não, mas que essencialmente tenha "lounge" (comodidades como café, água, áreas para espera e descanso, atendente para organizar as salas de reuniões, etc).

What is the Difference Between Executive Suites and Office Space?

Executive Suites: offer smaller office space plus shared amenities such as lobbies, reception areas, receptionist personnel, break rooms, conference rooms. Thus, the business owner is able to rent less space for an office and use the common areas which are included. Typically an agreement for space can range from month-to-month, to periods of 6, 12, or 18 months. Executive Suites are “plug and play” – like an Office Hotel, they are fully furnished including artwork, décor, Internet, and phone. Typically there is one price for everything making this an affordable and professional option without long term commitments or large start up costs.

Conventional Office Space: is typically leased for long periods of time to obtain the most favorable price. Periods of 3 to 5 years or longer are common. Conventional space in a professional, Class A building in some locations such as the Tri-Valley in Northern California, is often not available under 1,000 square feet. Each feature or amenity may have to be purchased or leased individually such as phone systems, Internet, furnishings. The general rule is that the longer the lease period, the lower the price. This works out well for some businesses with several employees who know they can rent for long periods of time. This doesn’t work so well for smaller businesses, small satellite or branch offices, start ups, or certain business types. The longer commitment period, and the larger square footage requirements can spell pressure for those that need more flexibility.

Apenas mais uma sugestão, sem termos certeza se se refere ao espaço físico ou ao próprio executivo.

visibilidade da suite executiva