Horizontal directional drilling consulting
The firm focuses engineering talent on projects involving installation of buried utilities by horizontal directional drilling.
Source: LinkedIn company description · Retrieved October 13, 2026
Company profilejdhair.com ↗
J. D. Hair & Associates, Inc
J. D. Hair & Associates, Inc. is a consulting firm based in Tulsa, Oklahoma.
- Headquarters
- Tulsa, Oklahoma, United StatesSource: RevenueBaseRetrieved October 13, 2026
- Employee range
- 11 to 50Source: RevenueBaseRetrieved October 13, 2026
- Founded
- 1987Source: RevenueBaseRetrieved October 13, 2026
- Published list appearances
- 4 supported appearances ↗Source: RevenueBase lists
What does J. D. Hair & Associates, Inc do?
The firm focuses engineering talent on projects involving buried utility installation by horizontal directional drilling. Since 1987, the firm has consulted on more than one thousand HDD crossings, in locations ranging from Alaska to Australia.
Based on the company’s public LinkedIn information, supplied through RevenueBase.
Who it serves
Its clients include Fortune 500 energy companies, major international design and construction firms, local utilities, and HDD contractors, located on every continent except Antarctica.
Services & capabilities.
HDD crossing design
The firm works in the specialized field of HDD crossing design.
Source: LinkedIn company description · Retrieved October 13, 2026
Company lists.
Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.
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↗Positions describe ordering within each source list. See how lists are built ↗
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Open the published source list.J. D. Hair & Associates, Inc
#9 Drilling engineering consultants
Snapshot: October 10, 2026
Company information
Sources & data notes.
RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 23, 2026 and October 10, 2026. How the company lists are built.
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