About Grant Demaree
Grant Demaree is a founder & CEO, director at Onebrief.
Grant Demaree first appears on SEC filings in 2022.
Experience
This experience comes from Grant Demaree's profile and from SEC filings. For roles taken from filings, the years are when the filings name Grant Demaree in the role, so the role may have started earlier or lasted longer.
Onebrief, Inc. Current
Founder & CEO, director
CEO and co-founder (2019 – Present)
2019 – Present · Honolulu, HI
Onebrief sells planning and collaboration software to military commands.
AA
Alchemist Accelerator Current
Mentor
2019 – Present
YC
Y Combinator
S21 Portfolio Company
2021
UA
US Army
Transitioning Military Officer
2017 – 2018
CR
Combined Joint Task Force - Operation Inherent Resolve
Partner Force Development Officer
2016 – 2017
1D
101st Airborne Division
Executive Officer
2015 – 2016
JA
Joint Task Force - United Assistance
Assistant Operations Officer
2014 – 2015
2D
2nd BCT, 101st Airborne Division
Battalion Communications Officer
2014
SC
Sandhurst Competition
Team Captain
2012 – 2013
DA
Defense Threat Reduction Agency
Intern
2011
BA
Boy Scouts of America
Eagle Scout
2009
Key Colleagues at Startups
The people Grant Demaree works with at each company, as listed on that company's latest Form D.
Onebrief, Inc. · Form D, Oct 14, 2026
CM
Christopher Miller
Director
RT
Raymond Tonsing
Director
LC
Lewis Craparotta
Director
AL
Adam Lackey
Executive officer
MB
Michael Brown
Director
DB
Derron Blakely
Secretary and General Counsel
NY
Nadav Yuhjtman
Executive officer
PK
Paul Kwan
Director