# Adelphi Research By Design LLC

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: Adelphi Research By Design LLC
- Alternative and DBA names: Research By Design LLC
- Entity type: LLC
- Original incorporation date: April 8, 2003
- Time in business: 23 years and 6 months
- Jurisdiction count: 14

## All known addresses

- 2711 Centerville Rd Ste 400, Wilmington, DE 19808 (listed in Arizona)
- 2005 S Easton Rd Ste 300, Doylestown, PA 18901 (listed in California, Florida, Georgia, Indiana, Maryland, Nebraska, Oregon, Pennsylvania)
- 437 Madison Ave, New York, NY 10022 (listed in California, Massachusetts)
- 3410 Belle Chase Way Ste 600, Lansing, MI 48911 (listed in Michigan)
- 80 State St, Albany, NY 12207 (listed in New York)
- 1285 Avenue Americas, New York, NY 10019 (listed in Vermont)

## Registered states

- [Arizona](https://index.baselayer.com/az/d06cd230523ec8f7): Foreign registration
- [Arizona](https://index.baselayer.com/az/7e850ecf94068dca): Foreign registration
- [California](https://index.baselayer.com/ca/886dd198ac25bc48): Foreign registration
- [California](https://index.baselayer.com/ca/e85e3882e09e24ec): Foreign registration
- [Delaware](https://index.baselayer.com/de/14b9df09d3bdcd3e)
- [Florida](https://index.baselayer.com/fl/eab5c0e46671ce7f): Foreign registration
- [Georgia](https://index.baselayer.com/ga/badea714484477c9): Foreign registration
- [Indiana](https://index.baselayer.com/in/30f1842b2423bc39): Foreign registration
- [Maryland](https://index.baselayer.com/md/199fbdab825aeb4c): Foreign registration
- [Massachusetts](https://index.baselayer.com/ma/f1756c3aa855eee4): Foreign registration
- [Michigan](https://index.baselayer.com/mi/d453d20d0321e02a): Foreign registration
- [Nebraska](https://index.baselayer.com/ne/def0c03b8fa57126): Foreign registration
- [New York](https://index.baselayer.com/ny/e00cc7165e04eb25): Foreign registration
- [Oregon](https://index.baselayer.com/or/7cea9629df699fa6): Foreign registration
- [Pennsylvania](https://index.baselayer.com/pa/0ae4bc8f48d85efb): Foreign registration
- [Vermont](https://index.baselayer.com/vt/c442aa1de5fff0bc): Foreign registration

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/14b9df09d3bdcd3e)