GRAEF (Graef-USA Inc.)
Milwaukee-headquartered since 1961 and engaged by the City of Wauwatosa after the August 2025 floods to assess sub-surface and drainage damage at Hart Park. It presented that assessment at the ASFPM national conference held in Milwaukee in June 2026 - a current, named metro engagement.
Who runs it
- Joanna Colletti ✓ PE (IL, WI), CFM - Market Area Leader, Water
Credentials & verification
- CFM (Certified Floodplain Manager)
- Named PE + CFM with Wisconsin registration
- Years in business
- Founded 1961
Services
Service area
Milwaukee metro · Wauwatosa · Southeastern Wisconsin · Madison · Chicago · Minneapolis
Our verification notes
A nuance worth knowing: the firm's named PE and CFM is based in the Chicago office but holds both Illinois and Wisconsin registrations, which is what the FEMA form requires, though she is not seated in a Wisconsin office. No Wisconsin-office PE and CFM was independently confirmed. The firm does not advertise signing floodproofing certificates; the qualification rests on credentials plus documented Wisconsin floodplain work.
Sources checked
- https://www.tosanews.com/not-timeline-for-hart-park-repairs-as-city-awaits-word-on-fema-aid/
- https://www.floods.org/wp-content/uploads/ASFPM-Milwaukee-conference-PROGRAM-1.pdf
Last verified 2026-08-13. This is an independent listing, not an endorsement, and we are not affiliated with GRAEF (Graef-USA Inc.). Confirm the current license, insurance and references directly before signing any contract.
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