Castellanos, Gabriel

Procurement contact · DSC CONTRACTING SERVICES DIVISION · Department of the Interior

Emailgabriel_castellanos@nps.gov
Phone3039692118
On SAM.gov notices16 since Nov 2021 — 7 in the last 24 months
Last listedApr 2026

What they buy

NAICSIndustryNotices
236220Commercial And Institutional Building Construction6
237990Other Heavy And Civil Engineering Construction5
238910Site Preparation Contractors3
237110Water And Sewer Line And Related Structures Construction2
PSCProduct or serviceNotices
Z2AAREPAIR OR ALTERATION OF OFFICE BUILDINGS5
Y1PZCONSTRUCTION OF OTHER NON-BUILDING FACILITIES3
P400SALVAGE- DEMOLITION OF BUILDINGS3
Z2NEREPAIR OR ALTERATION OF WATER SUPPLY FACILITIES2
Y1AZCONSTRUCTION OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS1
Z2JZREPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS1
Y1NECONSTRUCTION OF WATER SUPPLY FACILITIES1

How they restrict competition

  • No set-aside stated — 11
  • Small Business — 5

What they post

  • Sources Sought — 6
  • Solicitation — 4
  • Presolicitation — 3
  • Special Notice — 3

Track what DOI buys

See Castellanos,'s full record, every buyer at DOI and the contracts expiring next in FedSift's Agency Intelligence. Free plan available, no credit card.

Open in FedSift →

Source: SAM.gov contract notices that list this contact, including SAM's fiscal-year archives from FY2015. FedSift republishes public federal procurement data and is not affiliated with the U.S. Government. Is this you? Ask us to remove this page.

FedSift turns SAM.gov and USASpending data into federal BD intelligence — smart matches, recompete radar, cited AI solicitation analysis and compliance matrices.

Source data: SAM.gov (solicitations) and USASpending.gov (awards), refreshed nightly. FedSift is not affiliated with the U.S. Government.

Pricing · Privacy · Terms · support@fedsift.app