- 1990 – Established as an Institutional Fixed Income Broker Dealer
- 1992 – Began executing Institutional Equity orders
- 1992 – GPS began Underwriting Municipal Debt for the California STO
- 2005 – Approved as Underwriter for Freddie Mac and Federal Home Loan Bank
- 2006 – Began Corporate Debt Underwriting (Co-managed $400 million Southern California Edison (SCE) thirty-year issuance)
- 2010 – Selected as Co-manager for the $10.5 billion Citigroup stock issuance (U.S Treasury Disposition)
- 2010 – In December, Great Pacific celebrated its 20th Anniversary
- 2011 – Selected as Co-manager for $9.0 billion AIG stock issuance
- 2011 – Selected as Co-manager for $500 million SCE debt issuance
- 2011 – Approved as an Underwriter for Farmer Mac
- 2012 – Approved as a Co-Sponsor for the GNMA REMIC Program
- 2013 – Selected as Co-manager for $400 million SCE debt issuance
- 2013 – Approved Underwriter for the Fannie Mae Access Program
- 2013 – Selected as Co-manager for $750 Million PG&E debt issuance
- 2013 – Selected as Co-manager for $1.3 Billion Citigroup debt issuance
- 2014 – Selected as Co-manager for Southern California Edison debt issuances
- 2014 – Selected as Co-manager for $350 Million PG&E debt issuance
- 2014 – Selected as Co-manager for Citigroup debt issuances
- 2014 – Selected as Co-manager for Toyota Motor Credit debt issuances
- 2014 – Selected as Co-manager for Goldman Sachs debt issuances
- 2014 – Selected as Co-manager for General Motors Company debt issuances