Top-50-artThis marks the 20th year Trenchless Technology has conducted its annual survey ranking trenchless engineering companies in North America.


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The rankings are based on reported North American trenchless project billings (USD). Coming in at No. 1 for the second straight year is Englewood, Colo.-based CH2M, which reported trenchless billings of $164 million over its last fiscal year.

Rounding out the Top 10 are: No. 2: Mott MacDonald ($154 million); No. 3: Stantec ($105 million); No. 4: AECOM ($80.2 million); No. 5: Hatch ($80 million); No. 6: Black & Veatch ($74.9 million); No. 7: CDM Smith (70.4 million); No. 8: Arcadis ($54.2 million); No. 9: Jacobs Engineering Group ($47.4 million); and No. 10: Cardno ($45.2 million).

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Click here to check out the 2016 Top 50 Trenchless Design Firms

With a reported $27 million in trenchless billings, Canadian firm CCI Inc. comes in at No. 14 – the largest 100 percent trenchless design firm in North America and one of six 100 percent trenchless firms in the Top 50.

In addition to trenchless billings, the survey asks participants to report total company billings, number of trenchless experts employed by the company, the number of trenchless projects completed in the past five years and a breakdown of trenchless projects completed by method.

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Here is the breakdown of trenchless projects completed by method in the past year by the Top 50: Auger boring: 356; horizontal directional drilling: 1,883; microtunneling: 219; pipe jacking: 270; pipe bursting: 178; pipe rehabilitation: 1,207; sanitary sewer evaluation studies: 844; subsurface utility engineering: 4,278+ (although Cardno reported 2,392 in this category – 56 percent of the total); utility tunneling: 225; and 1,448 other trenchless projects.

RELATED: 2015 Trenchless Technology Top 50 Trenchless Design Firms

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This year’s survey results for 2015 billings – or the last fiscal year – are similar to what was reported last year for 2014. Looking specifically at trenchless billings, this year’s Top 50 trenchless firms completed a collective $1.28 billion in work, up slightly from $1.19 billion in 2014. Of the Top 50 firms’ collective revenue of $40.9 billion, 3.14 percent was in trenchless design. According to the survey, the Top 50 firms have completed more than 36,823 trenchless projects from 2010 to 2015. In a positive for the workforce, the survey also reveals there are more than 4,542 professionals working in trenchless design across the Top 50 – an 11 percent increase from 2015.

RELATED: Trenchless Technology Magazine Announces Its 2015 Top 50 Trenchless Design Firms

Trenchless Technology’s survey is aimed at providing readers a glimpse into the state of the trenchless design market. Trenchless Technology wishes to thank everyone who participated in this year’s survey. For more information on how to participate, contact Trenchless Technology managing editor Sharon M. Bueno at