HP Breakup. On Nov 1, 2015, the Hewlett-Packard Company was renamed HP Inc. and a new, independent company -- Hewlett Packard Enterprise (no hyphen; singular; green-rectangle logo) -- was spun out. Portions of HPE were later spun out into DXC and Micro Focus, which have spun out other companies. Details: HP Breakup

HPInc is the legal successor to the companies acquired by the Hewlett-Packard Company before the company was split into HPInc and Hewlett Packard Enterprise (HPE.) Responsibility for any commitments to former employees of Autonomy, Compaq, Digital, EDS, Tandem, etc. remain with HPInc -- regardless of whether the employee's last business unit ended up in HPInc or HPE. This includes employment verification and any retiree health coverage, pension, 401(k), etc. plans. HPE is responsible for any commitments to former employees of companies acquired by HPE, such as Cray, Nimble, etc. (About the HP Breakup)

Which HP-related companies am I a retiree or former employee of? (Not always obvious.) Given HP's complex history of acquisitions, divestitures, and spinoffs, the company or companies that you are legally a former employee of may not be obvious. (For example, the Hewlett-Packard Company was renamed HPInc in 2015.) If any doubt, check here: Which Company

HP Alumni Association information for former employees of certain acquisitions:  Autonomy    Compaq    Digital    EDS    Tandem

HPInc -- notification of current postal address. Requires several steps:

1. HPInc Payroll -- updates HP Inc payroll records only:
Go to HPInc U.S. external HR support site

2. HPInc Benefits Center -- benefits issues, disability, death notifications. Operated by Alight Solutions:
1-800-890-3100 (Outside the U.S., Puerto Rico, and Canada: 1-847-883-0465)

3. The HPInc Retirement Service Center administers pension and 401(k) accounts for HPInc (formerly named Hewlett-Packard Company.) Also administers any pension or 401(k) accounts that Hewlett-Packard predecessor companies (such as Compaq, Digital, and EDS) may have had. Operated by Fidelity Investments.
1-800-457-4015, M-F 7:30 AM to 11:00 PM Central Time. Outside the U.S., call 1-508-787-9902 collect. Website: https://nb.fidelity.com/public/nb/hp/home

If you ever worked for Hewlett Packard Enterprise. Requires several steps:

1. HPE Payroll -- updates HPE payroll records only. Email -- provide your full name, employee ID and contact details: payroll.usa.inactiveee@hpe.com 

2. HPE Benefits Center -- benefits issues, disability, death notifications. Operated by Bswift since April 1, 2019:
1-800-537-5304 (Outside the United States, Puerto Rico, and Canada: 1-312-843-5219)

3. The HPE Retirement Service Center administers pension and 401(k) accounts for Hewlett Packard Enterprise. Also administers any pension or 401(k) accounts that companies acquired by HPE since the HPInc/HPE split (Cray, Nimble, etc.) may have had. Operated by Fidelity Investments.1-800-409-4015, M-F 7:30 AM to 11:00 PM Central Time. Outside the U.S., call 1-508-787-9902 collect. Website: https://nb.fidelity.com/public/nb/default/home

HPInc -- notification of current postal address. To find the official contact page for former HPInc employees worldwide. (Employment verification, Experience Letters, payroll, address change, HR issues) HPInc Worldwide HR Support Country Selector   If country not listed, contact regional headquarters: HPInc Offices Worldwide or HPInc Corporate Headquarters

If you ever worked for Hewlett Packard Enterprise. To find the official contact page for HPE retirees and former employees worldwide. (Employment verification, Experience Letters, payroll, address change, HR issues) HPE Worldwide HR Support Country Selector  If country not listed, contact regional headquarters: HPE Offices Worldwide or HPE Corporate Headquarters [scroll down]