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This tender closed on 9 November 2026 — kept here for reference.

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ClosedtenderUnited States

33330226RF0010010 Indefinite Delivery Indefinite Quantity (IDIQ) for Construction Services in Washington DC Metropolitan Area

Issued by SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION · via SAM.gov — US federal contract opportunities

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Published
9 Nov 2026
Closed
9 Nov 2026, 20:00 UTC
Reference
33330226RF0010010
Location
DC, United States
Sector
Construction & Infrastructure

This notice was amended

Details changed after publication. Re-check the official notice before bidding.

  • Submission deadline changed from 6 Oct 2026, 19:00 UTC to 9 Nov 2026, 20:00 UTC
    First seen by FreeTender on 7 Oct 2026 — most portals don’t publish when a corrigendum was issued.

At a glance

SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION in United States has published a tender in construction & infrastructure: “33330226RF0010010 Indefinite Delivery Indefinite Quantity (IDIQ) for Construction Services in Washington DC Metropolitan Area”. The deadline passed on 9 November 2026. Quote reference 33330226RF0010010 in any correspondence with the buyer. FreeTender has recorded 2 notices from this buyer since 2026, 1 of them currently open. There are 385 open construction & infrastructure notices in United States on FreeTender. Bids are submitted to the buyer through SAM.gov — US federal contract opportunities, not through FreeTender.

Key requirements

Taken from the notice by FreeTender. The tender document on the official portal is binding — check it, and any corrigendum, before you bid.

To bid on SAM.gov (US federal)

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Details

SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION is soliciting 33330226RF0010010 Indefinite Delivery Indefinite Quantity (IDIQ) for Construction Services in Washington DC Metropolitan Area. Solicitation number 33330226RF0010010. Classified under NAICS 236220 — Commercial and Institutional Building Construction. Product/service code Z1JA — MAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS. Place of performance: DC, USA. Responses are due by 09 November 2026 20:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

Amendment 3 -   Ommit clauses, updated link and RFI responses. (See attachment) Amendment 2 -  Extend the proposal and RFI's due dates. (See attachment) Amendment 1 - Extend the proposal due date. (See attachment) The Smithsonian Institution seeks interested Small Business contractors to establish multiple Small Business Indefinite Delivery / Indefinite Quantity (IDIQ) Contracts with construction firms to provide construction services between $1 million to $8 million per project. The NAICS code is 236220 for Commercial and Institutional Building Construction. This announcement is for the selection and award of one or more Contracts that will support construction needs in our facilities for the Washington, DC Metropolitan area and surrounding facilities such as the Smithsonian Conservation Biology Institute in Front Royal, VA and the Smithsonian Environmental Research Center, Edgewater, MD. REQUEST FOR CLARIFICATIONS It is desired that all questions/clarifications be sent in, sequentially numbered for example first questions 1,2,3, second set of questions 4,5,6, etc. in word format to ColemanSI@si.edu It is requested that all questions be sent in no later than October 12, 2026 at 3PM EST. No site visit has been arranged, if you feel a site visit is warranted, please send an email requesting one. Qualifications are to be submitted by 3:00PM ET November 9, 2026 to Dropbox Link: https://www.dropbox.com/request/gy0wr7le8oqp3rmm3o6x

This notice has closed — what to do next

We hold 2 notices from SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION · SMITHSONIAN INSTITUTION, going back to October 2026 — 1 of them still open. There are 385 open Construction & Infrastructure tenders in United States.

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Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this construction & infrastructure opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
Common bidding mistakes to avoid →Writing a winning proposal

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