LDIS

What LDIS does

LDIS, LLC is a full-service multi-discipline engineering, procurement, and construction management (EPCM) firm headquartered in Arvada, Colorado, with a second office in Boulder. Founded in 2003 by Ben and Dawn Schwenk initially as a single-person piping design company, LDIS has grown into a comprehensive engineering services provider serving primarily the oil and gas industry across upstream, midstream, and downstream operations, with additional exposure to ammonia/hydrogen, pharmaceutical, mining, water/wastewater, and LPG/propane sectors. The firm delivers services spanning front-end engineering (FEL-1 through FEL-3), detailed design, procurement, project management, and field services including commissioning and startup support.

LDIS operates as an operating unit within Tetra Tech (NASDAQ: TTEK) following Tetra Tech's April 2019 acquisition. The firm is staffed at 11-50 employees and organized across ten core service lines: process engineering, civil/structural engineering, mechanical engineering, electrical engineering, controls/automation engineering, pipeline engineering, piping design, field services, procurement, and project management. Technical capabilities are built around established commercial software including CADWorx (with in-house pipe specification development), RISA 3D, STAAD, L Pile, SAFI, ProMax, Symmetry, Primavera P6, MS Project, and laser scanning technology for facility digitization. Differentiated in-house assets include a 20+ person dedicated piping design team, a full-time laser scanning specialist, and professional engineers licensed across 16 states.

The firm's revenue model is professional services-based, with project fees generated through direct enterprise client engagement across confidential energy and industrial accounts. Notable engagements include a confidential amine carbon capture and CO2 sequestration facility designed for 2 million metric tons per year at full buildout, a confidential owner's engineer scope for a 1.4 MTPY blue ammonia and hydrogen facility in Ingleside, Texas, a confidential 350-500 MMSCFD greenfield gas processing facility, and a Wyoming mine shaft ventilation upgrade. No publicly disclosed revenue, pricing benchmarks, or customer concentration data exist. The go-to-market approach is sales-led, leveraging senior leadership industry relationships, project showcase content on the company website and LinkedIn, and direct inquiry channels ([email protected], 303-953-5333).

Name

LDIS

Legal name

LDIS, LLC

Website

https://ldisllc.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

LDIS, LLC is a multi-discipline engineering services firm headquartered in Arvada, Colorado, operating as a Tetra Tech subsidiary since 2019. It delivers process, mechanical, electrical, piping, and field engineering to oil and gas, hydrogen, pharmaceutical, and mining enterprise clients.

Ownership category

akta.pro rank

Headquarters

HQ city

Arvada

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Engineering Services: LDIS generates revenue through providing comprehensive engineering services including process engineering, civil/structural engineering, mechanical engineering, electrical engineering, controls/automation engineering, piping design, and pipeline engineering. Revenue is project-based, earned through fee-for-service engagements ranging from FEED studies through detailed design and construction support.
2. Project Management Services: Provides expert project management, scheduling, cost control, and risk analysis services for successful project outcomes. Includes development of detailed Project Execution Plans, Work Breakdown Structures, planning and scheduling using Primavera P6 and MS Project.
3. Procurement Services: Full suite procurement services including RFQs, Purchase Orders, Vendor Drawing Coordination, Expediting, Material Tracking, and creation of custom Job Books. Services are billed as part of overall project engagements.
4. Field Services: Field services including commissioning, startup, construction support, PHA facilitation, laser scanning, inventory control, maintenance plans, and operational procedures. Services provided for both brownfield and greenfield sites.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

LDIS, LLC is a multi-discipline engineering, procurement, and construction management (EPCM) firm delivering services for oil and gas, mining, pharmaceutical, water/wastewater, and ammonia/hydrogen sector clients. The firm provides integrated engineering and design spanning process, civil/structural, mechanical, electrical, instrumentation/controls, piping design, pipeline engineering, field services, procurement, and project management, with delivery from FEL-1/FEED studies through detailed design, procurement, construction support, commissioning, and startup for both brownfield and greenfield sites.

Product overview

LDIS, LLC is an engineering, procurement, and construction management (EPCM) firm that delivers comprehensive services for the oil and gas, mining, pharmaceutical, water/wastewater, and renewable energy industries. The company operates as a unified service offering rather than a modular software platform. Its portfolio consists of ten core engineering and project management services: Process Engineering, Civil/Structural Engineering, Mechanical Engineering, Electrical Engineering, Controls/Automation Engineering, Pipeline Engineering, Piping Design, Field Services, Procurement Services, and Project Management Services. These services are offered both individually and as an integrated multidisciplinary package, with the company providing end-to-end support from conceptual design through commissioning and startup. The company was founded in 2003 and acquired by Tetra Tech in 2019.

Differentiator

Problem solved

Functional benefit

Products and services

• Process Engineering Services Process engineering support including feasibility studies, process simulation, PFD/P&ID development, equipment sizing, PSV specification, and PHA facilitation for upstream, midstream, and downstream hydrocarbon processing facilities.
• Civil/Structural Engineering Services Civil and structural engineering including grading design, soil analysis, erosion control, structural stress analysis, concrete design, and foundation engineering for plant, station, and pipeline projects.
• Mechanical Engineering Services Mechanical engineering for onshore production facilities and pipeline networks including equipment specifications, code compliance, standardization, modularization, and equipment lifecycle support.
• Electrical Engineering Services Electrical engineering and design including power distribution, area classification, 3D modeling, equipment specifications, power system modeling, and commissioning support.
• Controls/Automation Engineering Services Instrumentation, controls, and automation engineering including PLC/DCS design, instrument specifications, programming, commissioning support, SCADA system development, and HMI development.
• Pipeline Engineering Services Pipeline/mapping services including integrity management plans, ILI result evaluation, excavation and repair criteria development, construction coordination, and regulatory recordkeeping.
• Piping Design Services Piping design and engineering including material specifications, code compliance (ASME, API, ASTM), CADWorx modeling, stress analysis, and comprehensive drawing deliverables for upstream, midstream, and downstream facilities.
• Field Services Field services including commissioning, start-up support, site walk-downs, PSSR coordination, laser scanning, as-built P&IDs, maintenance plans, and construction inspection for brownfield and greenfield sites.
• Procurement Services Full procurement services including RFQ packaging, vendor bid analysis, purchase orders, expediting, vendor drawing coordination, and custom Job Books creation.
• Project Management Services Project management including scheduling using Primavera P6 and MS Project, cost management and controls, risk analysis, resource planning, and project execution from FEL-1 through detailed design and construction.

Quantifiable outcome

• Gillis CO2 Sequestration Facility processes 2 million metric tons per year of CO2 at full buildout
• +2 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Tetra TechcoreStrategic or Co-development Partner · 1 April 2019In April 2019, LDIS, LLC was acquired by Tetra Tech, a leading provider of consulting, engineering, and technical services. LDIS operates as an LDIS Unit within the Tetra Tech family, providing multidisciplinary engineering, procurement, and construction management services. Robert DeHerrera serves as LDIS Unit President reporting to Tetra Tech leadership.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• KBR: Global engineering, procurement, construction, and technology solutions provider with significant oil & gas, hydrogen, ammonia, and sustainable technology practices. Competes for the same energy-transition engineering scopes LDIS is pursuing, though at much larger scale.
• Jacobs Solutions: Global professional services firm delivering engineering, technical, scientific, and consulting solutions across energy, water, and advanced manufacturing. Overlaps with LDIS on multi-discipline engineering for oil & gas, mining, and water/wastewater projects.
• Stantec: Global design and engineering firm serving energy, water, infrastructure, and mining sectors with multi-discipline capabilities including pipelines, facilities, and environmental services. Has significant overlap with LDIS in oil & gas, mining, and water engineering scopes.
• Fluor Corporation: Global E&C leader delivering design, engineering, procurement, fabrication, construction, and project management for energy, chemicals, mining, and infrastructure clients. Competes with LDIS on large-scale oil & gas, gas processing, and energy transition megaprojects.
• Burns & McDonnell: Large employee-owned engineering, construction, and consulting firm serving oil & gas, chemicals, power, and mining with full EPCM capabilities. Provides overlapping services to LDIS's target customers but at significantly larger scale and broader geographic reach.
• Wood PLC: Global consulting and engineering firm focused on energy and materials, with major capabilities in upstream oil & gas, hydrogen, carbon capture, and process industries. Directly comparable to LDIS on oil & gas process engineering and energy transition EPCM, but with global scale.
• Worley: Global energy, chemicals, and resources project delivery and consulting firm with strong presence in oil & gas, hydrogen, ammonia, and carbon capture — the same emerging sectors where LDIS is building credentials. Competes on similar projects at much larger scale.

Direct peers

• Audubon Engineering Companies: Mid-size EPCM firm providing multi-discipline engineering, procurement, fabrication, and field services primarily to the oil & gas, pipeline, and energy transition markets. Directly comparable to LDIS in scope, customer base, and delivery model across upstream, midstream, and downstream projects.
• ENGlobal Corporation: Engineering and fabrication services firm focused on the energy sector, providing process, mechanical, electrical, instrumentation, and project management services to oil & gas and power clients. Closely matches LDIS in scale, multi-discipline model, and energy industry focus.
• Stress Engineering Services: Engineering consulting and testing firm serving oil & gas, petrochemical, and power industries with specialized expertise in design, failure analysis, and field engineering. Comparable to LDIS in technical depth and customer overlap in upstream and midstream markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights1 record

Customer concentration

• LinkedInlinkedin.com/company/ldis-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LDIS