# Alexion Pharmaceuticals, Inc.

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

- Legal business name: Alexion Pharmaceuticals, Inc.
- Alternative and DBA names: Alexion Pharmaceuticals; Alexionpharmaceuticals; Udec Pharmaceuticals Inc.
- Entity type: C corporation
- Original incorporation date: January 28, 1992
- Time in business: 34 years and 8 months
- Jurisdiction count: 30

## All known addresses

- 352 Knotter Dr, Cheshire, CT 06410 (listed in Alabama, New York, North Dakota, Oregon, Rhode Island, West Virginia)
- 121 Seaport Blvd, Boston, MA 02210 (listed in Alaska, California, Colorado, District of Columbia, Florida, Iowa, Kansas, Massachusetts, Montana, New Hampshire, North Dakota, Ohio, Oregon, South Dakota, Texas, Utah, Vermont)
- 45 Memorial Cir, Augusta, ME 04330 (listed in Maine)
- 109 Executive Dr Ste 3, Madison, MS 39110 (listed in Mississippi)
- 221 Bolivar St, Jefferson City, MO 65101 (listed in Missouri)
- 80 State St, Albany, NY 12207 (listed in New York)
- 2626 Glenwood Ave Ste 550, Raleigh, NC 27608 (listed in North Carolina)
- 361 Calle de San Francisco Ste 4, San Juan, PR 00901 (listed in Puerto Rico)

## Registered states

- [Alabama](https://index.baselayer.com/al/7bcb188d526ddfa3): Foreign registration
- [Alaska](https://index.baselayer.com/ak/e75697c5fd31be0f): Foreign registration
- [Alaska](https://index.baselayer.com/ak/f9ed5287857a63a7): Foreign registration
- [California](https://index.baselayer.com/ca/83bdcea2641b9d42): Foreign registration
- [Colorado](https://index.baselayer.com/co/a07ebd4b45e6dcdd): Foreign registration
- [Connecticut](https://index.baselayer.com/ct/feb9b943d76944f2): Foreign registration
- [Delaware](https://index.baselayer.com/de/d18308e510d45b63)
- [District of Columbia](https://index.baselayer.com/dc/04632a97bd5f9c05): Foreign registration
- [Florida](https://index.baselayer.com/fl/e5a1ddc38e13fdce): Foreign registration
- [Iowa](https://index.baselayer.com/ia/7e4b5d276f94c4a9): Foreign registration
- [Kansas](https://index.baselayer.com/ks/8cd985c0ab6d7845): Foreign registration
- [Maine](https://index.baselayer.com/me/721f019ffae5161d): Foreign registration
- [Massachusetts](https://index.baselayer.com/ma/e951cfbac243491d): Foreign registration
- [Mississippi](https://index.baselayer.com/ms/376f984cff7c59d8): Foreign registration
- [Missouri](https://index.baselayer.com/mo/b14561aaae3393f0): Foreign registration
- [Montana](https://index.baselayer.com/mt/b93ff4a84f6aa1ec): Foreign registration
- [New Hampshire](https://index.baselayer.com/nh/2af19519108130d9): Foreign registration
- [New York](https://index.baselayer.com/ny/a02c0af4c669d678): Foreign registration
- [New York](https://index.baselayer.com/ny/dc657cb181551074): Foreign registration
- [North Carolina](https://index.baselayer.com/nc/6e4b43ec826f0afd): Foreign registration
- [North Dakota](https://index.baselayer.com/nd/e7dd38dbb99ce13b): Foreign registration
- [North Dakota](https://index.baselayer.com/nd/2f6ba8085c5030c1): Foreign registration
- [Ohio](https://index.baselayer.com/oh/10937f971fe9ef67): Foreign registration
- [Oklahoma](https://index.baselayer.com/ok/b23640489b73b603): Foreign registration
- [Oregon](https://index.baselayer.com/or/90ea5a62bd8dbb96): Foreign registration
- [Oregon](https://index.baselayer.com/or/fe1113bab82c06df): Foreign registration
- [Puerto Rico](https://index.baselayer.com/pr/831a58a75bb7d46a): Foreign registration
- [Rhode Island](https://index.baselayer.com/ri/83ecef88723033cf): Foreign registration
- [South Carolina](https://index.baselayer.com/sc/a302248895937a0d): Foreign registration
- [South Dakota](https://index.baselayer.com/sd/6e7261b33ae00576): Foreign registration
- [Texas](https://index.baselayer.com/tx/7cd6cd01866bf19a): Foreign registration
- [Utah](https://index.baselayer.com/ut/9fc06dfe21fa115f): Foreign registration
- [Utah](https://index.baselayer.com/ut/ad63ecf8149dabca): Foreign registration
- [Vermont](https://index.baselayer.com/vt/a952e1244c0e0418): Foreign registration
- [West Virginia](https://index.baselayer.com/wv/85cb7cfc60e409a4): Foreign registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/d18308e510d45b63)