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Data Haven Towns
- Ansonia
- Bethany
- Branford
- Cheshire
- Clinton
- Derby
- East Haven
- Guilford
- Hamden
- Madison
- Meriden
- Milford
- New Haven
- North Branford
- North Haven
- Orange
- Oxford
- Seymour
- Shelton
- Wallingford
- West Haven
- Woodbridge
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United Way of Greater New Haven
- Bethany
- East Haven
- Hamden
- New Haven
- North Branford
- North Haven
- Orange
- West Haven
- Woodbridge
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The Community Foundation for Greater New Haven
- Ansonia
- Bethany
- Branford
- Cheshire
- Derby
- East Haven
- Guilford
- Hamden
- Madison
- Milford
- New Haven
- North Branford
- North Haven
- Orange
- Oxford
- Seymour
- Shelton
- Wallingford
- West Haven
- Woodbridge
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Regional Growth Partnership Towns
- Bethany
- Branford
- East Haven
- Guilford
- Hamden
- Madison
- Meriden
- Milford
- New Haven
- North Branford
- North Haven
- Orange
- Wallingford
- West Haven
- Woodbridge
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South Central Connecticut Council of Government Towns
- Bethany
- Branford
- East Haven
- Guilford
- Hamden
- Madison
- Meriden
- Milford
- New Haven
- North Branford
- North Haven
- Orange
- Wallingford
- West Haven
- Woodbridge
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Regional Workforce Development Board Towns
- Bethany
- Branford
- Clinton
- East Haven
- Guilford
- Hamden
- Madison
- New Haven
- North Branford
- North Haven
- Orange
- Wallingford
- West Haven
- Woodbridge
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