How many bidders does a TxDOT letting attract?

A TxDOT letting drew 4.7 bidders on average (median 4) across the 2,072 lettings with published bid tabs from October 15, 2025 to October 15, 2026; 7.4% of lettings had a single bidder.

Source: TxDOT Bid Tab Rankings (every published letting), BidSparq

Data as of: October 18, 2026 (refreshed weekly)

Sample: 2,072 TxDOT lettings with published bid tabs, 9,643 bids from 527 contractors, lettings October 15, 2025 to October 15, 2026 (as of 2026-10-18).

License: free to cite with attribution to BidSparq

Verify this yourself: TxDOT Bid Tabulations on the Texas Open Data Portal (dataset de7b-7dna, every bid item from every TxDOT letting that published bids).

Essential statistics

  • 1 bidder: 154 lettings (7.4%).
  • 2 bidders: 346 lettings (16.7%).
  • 3 bidders: 352 lettings (17.0%).
  • 4 bidders: 301 lettings (14.5%).
  • 5 bidders: 239 lettings (11.5%).
  • 6+ bidders: 680 lettings (32.8%).
  • By project type, competition runs from a median of 3 bidders (Maintenance) to 6 (Construction).

Bidders per TxDOT letting, October 15, 2025 to October 15, 2026

BiddersLettingsShare
11547.4%
234616.7%
335217.0%
430114.5%
523911.5%
6+68032.8%

What this means

A bid tab is the tabulation TxDOT publishes after a letting: every bidder, every bid item, every unit price, next to the sealed engineer's estimate. This corpus holds every TxDOT letting that published bid tabs on data.texas.gov, loaded weekly and matched against the source month by month, so these are counts and rankings over the whole population, not a sample.

The low bidder is the apparent low bid at letting. TxDOT can still reject bids or re-let a project, so low bids are not the same as awards, and one bid means one contractor on one letting.

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