Diedrich Drill
Diedrich Drill is a La Porte, Indiana-based manufacturer founded in 1973 that designs and builds geotechnical drill rigs (D50, D70 mechanical; D26 hydraulic) and 80+ tooling products, serving drilling contractors, engineering firms, environmental consultants, and government agencies across global markets via direct quote-based sales and a rental partner network.
- Company typePrivate
- Founded1973
- HeadquartersLaporte, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Diedrich Drill does
Diedrich Drill is a La Porte, Indiana-based manufacturer of geotechnical drill rigs and complementary tooling, founded in 1973 by John Diedrich as a machine shop supplying precision parts for coal and mineral exploration. The company produces three core rigs — the D50 and D70 mechanical rigs (high-torque John Deere turbo diesel powertrains for demanding applications) and the D26 hydraulic rig (CAT 1.7L diesel with compact footprint for restricted-access sites) — alongside an in-house tooling catalog of more than 80 SKUs including augers, drill rods, samplers, casings, hand tooling, hoisting assemblies, tri-cone and drag bits, and water swivels. All manufacturing, assembly, and service operations are concentrated at the La Porte facility, where the company also performs preventative maintenance, minor and major repairs for current and legacy rigs.
The company sells through a quote-based direct sales motion (toll-free phone and website request forms), with no e-commerce channel, and supplements that motion with a rental partner network offering financing and rent-to-own programs. Pricing is quote-based and not publicly disclosed, with a standard new-rig lead time of approximately 90 days. Customer segments are horizontally distributed across geotechnical engineering, geothermal, groundwater, environmental, and government agency end-markets, with no disclosed named-logo customer concentration. Since 2016, the company has been owned by Cape Kauri Partners LLC, a private equity firm focused on middle-market industrial companies; no subsequent funding events, acquisitions, or leadership changes are disclosed.
Diedrich Drill firmographics
Firmographics- Name
- Diedrich Drill
- Legal name
- Diedrich Drill
- Website
- https://diedrichdrill.com
- Company type
- Private
- Founded year
- 1973
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Diedrich Drill is a La Porte, Indiana-based manufacturer founded in 1973 that designs and builds geotechnical drill rigs (D50, D70 mechanical; D26 hydraulic) and 80+ tooling products, serving drilling contractors, engineering firms, environmental consultants, and government agencies across global markets via direct quote-based sales and a rental partner network.
- Ownership category
- akta.pro rank
Diedrich Drill industry classification
Industry- Product category
- Geotechnical Drilling Equipment
- NAICS
- Mining and Oil and Gas Field Machinery Manufacturing (33313), Construction Machinery Manufacturing (33312)
- SIC
- Mining Machinery & Equip (No Oil & Gas Field Mach & Equip) (3532), Construction, Mining & Materials Handling Machinery & Equip (3530)
- akta.pro primary industry
- Drilling Rigs & Drill Systems (IMAHAMAA)
- akta.pro secondary industries
- Drill Tools, Bits & Downhole Equipment (IMAHAMAB), Rock Drilling & Blasthole Drilling Equipment (IMAHAMAC), Drilling & Rock Excavation Equipment (Rotary/Top-Hammer, Jumbos, Raiseborers) (IMAKANAC)
Keywords
Where Diedrich Drill is headquartered
LocationHeadquarters
- HQ city
- Laporte
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Diedrich Drill business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Drill Rig Sales: Sale of mechanical and hydraulic geotechnical drill rigs (D50, D70, D26 models). Rigs available in track, skid, trailer, or truck mount configurations. Customization options available.
- Tooling & Accessories: Comprehensive tooling catalog including augers, drill rods, samplers, subs, casings, hand tooling, hoisting assemblies, piston samplers, safety hammers, thin wall samplers, tri-cone & drag bits, and water swivels.
- Maintenance & Repair Services: Service department provides preventative maintenance (82-point inspection, fluid changes), minor repairs (hydraulic pump, rotary box rebuilds), and major repairs (engine replacement, feed frame replacement). All repairs performed in La Porte, Indiana.
- Financing Programs: Various financing options tailored to individual customer needs, financial situations, and goals. Rent-to-own programs also available through partner network.
- Parts & Components: Replacement parts for current and legacy Diedrich drill rigs. Engineering drawings and technical guidance available upon request.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Multi-year contract | Custom drill rig pricing based on model, configuration, and specifications |
| Other | Multi-year contract | Financing and rent-to-own programs for drill rig acquisition |
| Other | Pay-as-you-go | Service tiers: Preventative, Minor, Major repairs |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
Diedrich Drill product offering
Product offeringCore offering
Diedrich Drill manufactures geotechnical drill rigs and a catalog of 80+ compatible tooling items under one roof in La Porte, Indiana. Its current product line includes three drill rig platforms (D50 mechanical, D70 mechanical, D26 hydraulic) configurable in track, skid, trailer, or truck mount formats, alongside in-house tooling and a service department that delivers preventative maintenance and repairs for current and legacy rigs.
Product overview
Diedrich Drill manufactures geotechnical drill rigs and tooling as a unified product portfolio. The core offerings include three drill rig models: the D50 and D70 mechanical rigs (for high-torque demanding applications) and the D26 hydraulic rig (for compact/precision work). These rigs are complemented by 80+ tooling solutions including augers, drill rods, samplers, subs, casings, hand tooling, hoisting assemblies, piston samplers, safety hammers, thin wall samplers, tri-cone & drag bits, and water swivels—all manufactured in-house. The company also provides maintenance and repair services. The product ecosystem is designed for soil and rock exploration, foundation testing, standard penetration testing (SPT), geothermal, groundwater, and environmental applications.
Differentiator
Problem solved
Functional benefit
Products and services
- D50 Mechanical Drill Rig Versatile mechanical geotechnical drill rig delivering 8,800 ft. lbs. maximum spindle torque via a John Deere 115 HP turbo diesel Tier 4 engine. Supports augering, soil sampling, coring, and probing in track, skid, trailer, or truck mount configurations for drilling contractors and engineering firms.
- D70 Mechanical Drill Rig Most powerful mechanical drill rig in the lineup, providing up to 11,200 ft. lbs. of spindle torque with a 125 HP John Deere turbo diesel Tier 4 engine and 32,500 lbs push force. Engineered for the most demanding geotechnical augering, soil sampling, coring, and probing applications.
- D26 Hydraulic Drill Rig Compact hydraulic geotechnical drill rig with 3,370 ft. lbs. max spindle torque powered by a CAT 1.7L liquid-cooled 3-cylinder 40 HP Tier 4 diesel, improved control panel, and small footprint. Designed for restricted-access or low-clearance job sites and available in track, skid, trailer, or truck mount configurations.
- Augers Helical drilling tools used for soil penetration, manufactured in-house by Diedrich to ensure reliable compatibility and performance with Diedrich drill rigs and offered to drilling contractors and engineering firms.
- Drill Rods Drill rods that transmit torque and force during drilling operations, designed for durability and dependable performance and offered as part of Diedrich's in-house manufactured tooling catalog for use with Diedrich drill rigs.
- Samplers (Piston, Thin Wall, and Safety Hammers) Soil sampling tools including piston samplers for undisturbed samples, thin wall samplers for high-quality sample collection, and safety hammers for controlled impact during standard penetration testing, all manufactured in-house for geotechnical and environmental drilling applications.
- Tri-Cone & Drag Bits Cutting bits used to drill soil formations in geotechnical and environmental drilling operations, manufactured in-house as part of Diedrich's tooling catalog.
- Water Swivels Equipment that allows fluid flow while the drill string rotates during drilling operations, manufactured in-house and offered as part of Diedrich's drilling tooling catalog.
- Subs, Casings, Hand Tooling, and Hoisting Assemblies Supporting drilling accessories manufactured in-house: subs that connect different drilling components, steel casings that stabilize boreholes, hand tooling for manual drilling and sampling operations, and hoisting assemblies for lifting drilling tools during rig operations.
- Drill Rig Maintenance & Repair Services Service support delivered from the La Porte, Indiana service department covering preventative maintenance (82-point safety inspection, fluid changes, fuel filter replacement, track tension adjustment), minor repairs (hydraulic pump replacement, rotary box rebuilds, track wheel replacement), and major repairs (engine replacement, feed frame replacement) for current and legacy Diedrich drill rigs.
Quantifiable outcome
- 800+ drill rigs sold
- +3 more outcomes
Companies that use Diedrich Drill
Customer profileSegments5 records
Ideal customer profiles3 records
Diedrich Drill technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Diedrich Drill partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered minor and core.
- National Ground Water Association (NGWA)minorIndustry affiliation connecting Diedrich Drill with organizations supporting innovation, safety, and advancement within the drilling and geotechnical industries.
- Shallow Drillers & Contractors Association (SEDC)minorIndustry affiliation connecting Diedrich Drill with organizations supporting innovation, safety, and advancement within the drilling and geotechnical industries.
- National Drilling Association (NDA)minorIndustry affiliation connecting Diedrich Drill with organizations supporting innovation, safety, and advancement within the drilling and geotechnical industries.
- Rental Partner NetworkcoreFlexible rental solutions offered through partner network, including financing and rent-to-own programs. Partners connect customers with appropriate rental options based on their drilling needs.
Scale indicators5 records
Recent moves5 records
Expansion highlights5 records
Diedrich Drill competitors and assessment
Company assessmentDirect peers
- Central Mine Equipment Company: US-based manufacturer of geotechnical and environmental drilling rigs with comparable product mix (mechanical and hydraulic rigs, tooling, parts). CME is one of the closest direct competitors in the same niche served by Diedrich.
- Geoprobe Systems: Manufacturer of direct-push geotechnical and environmental drilling rigs and tooling. Competes with Diedrich in the environmental site investigation and groundwater monitoring segments.
- Comacchio: Italian manufacturer of drilling rigs and equipment for geotechnical, environmental, and foundation applications. Competes with Diedrich on rig technology and customization in similar end markets.
- Fraste: Italian manufacturer of drilling rigs for geotechnical, environmental, water well, and mining applications. Directly comparable product line and end-market overlap with Diedrich.
- SIMCO Drilling Equipment: US manufacturer of drilling rigs for geotechnical, environmental, and water well markets. Closely comparable scale, product line, and target customers to Diedrich Drill.
- Melfred Borzall (Versa-Drill): Manufacturer of horizontal directional drilling tooling and drilling rigs with overlap in tooling consumables and rig systems for utility and infrastructure applications.
Broad incumbents
- Boart Longyear: Global drilling services and equipment provider with significant mining and geotechnical rig offerings. Larger scale and broader portfolio, but overlapping product categories with Diedrich.
- Atlas Copco: Global industrial group with a major power and flow division offering geotechnical and exploration drilling equipment. Broader portfolio but competes in overlapping rig categories.
- Epiroc: Major mining and infrastructure equipment manufacturer offering drilling rigs and consumables for surface and underground applications. Overlaps with Diedrich in surface geotechnical drilling segments.
Others
- National Drilling Association: Industry association that Diedrich is affiliated with; serves as an ecosystem/network connection rather than a direct competitor, providing industry context for peer relationships.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Diedrich Drill social profiles
Digital presenceDiedrich Drill financial estimates
Financial estimateRevenue estimate
Valuation estimate
Diedrich Drill leadership team
Management profileNumber of profiles
Profiles1 record
Diedrich Drill funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Diedrich Drill M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Diedrich Drill
What does Diedrich Drill do?
Diedrich Drill manufactures geotechnical drill rigs and a catalog of 80+ compatible tooling items under one roof in La Porte, Indiana. Its current product line includes three drill rig platforms (D50 mechanical, D70 mechanical, D26 hydraulic) configurable in track, skid, trailer, or truck mount formats, alongside in-house tooling and a service department that delivers preventative maintenance and repairs for current and legacy rigs.
Is Diedrich Drill a public or private company?
Diedrich Drill is a private company. It is classified as private equity controlled and is currently operating.
When was Diedrich Drill founded?
Diedrich Drill was founded in 1973. It employs 11 to 50 people.
Where is Diedrich Drill based?
Diedrich Drill is headquartered in Laporte, United States, in the North America region.
How does Diedrich Drill make money?
Five revenue lines are on record. Drill Rig Sales are the primary driver. The others are tooling & Accessories, maintenance & Repair Services, financing Programs and parts & Components.
Who are Diedrich Drill's main competitors?
Direct peers on record are Central Mine Equipment Company, Geoprobe Systems, Comacchio, Fraste, SIMCO Drilling Equipment and Melfred Borzall (Versa-Drill). Broad incumbents are Boart Longyear, Atlas Copco and Epiroc. National Drilling Association is listed as an others.
Does Diedrich Drill have an API?
No public API is recorded for Diedrich Drill.
What industry is Diedrich Drill in?
Diedrich Drill's product category is Geotechnical Drilling Equipment. Its primary akta.pro industry code is IMAHAMAA, Drilling Rigs & Drill Systems, with a secondary code of IMAHAMAB, Drill Tools, Bits & Downhole Equipment. Its NAICS code is 33313 and its SIC code is 3532.