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Jonathan D. Dittmer

Contracting OfficerWestern-Sierra Nevada Region

Jonathan D. Dittmer is a Contracting Officer at Western-Sierra Nevada Region. Jonathan is associated with 181 contracts. Western-Sierra Nevada Region has $13,759,391 in total awards. Activity spans Power and Communication Line and Related Structures Construction, Commercial and Institutional Building Construction, and All Other Miscellaneous Electrical Equipment and Component Manufacturing.

Person Profile

Contracting officer information and contact details

JD

Jonathan D. Dittmer

Contracting Officer

Agency

Western-Sierra Nevada Region

Code: 895033

Department of Energy

Last seen

Sep 22, 2026

Most recent solicitation activity

Role Type

Contracting officer

Contracting Officer Overview

Industry focus, set-aside activity, and contract history for this federal contracting professional.

AI Professional Profile

Jonathan D. Dittmer serves as a primary procurement lead within the Department of Energy’s Western-Sierra Nevada Region, overseeing the acquisition of critical infrastructure services essential to the reliability and modernization of the western U.S. power transmission grid. His role centers on mana...

Jonathan D. Dittmer serves as a primary procurement lead within the Department of Energy’s Western-Sierra Nevada Region, overseeing the acquisition of critical infrastructure services essential to the reliability and modernization of the western U.S. power transmission grid. His role centers on managing contract actions for high-voltage transmission line construction, substation upgrades, and operational support services, ensuring compliance with federal procurement regulations and mission-critical timelines. He is instrumental in executing acquisitions that align with the agency’s mandate to enhance grid resilience, safety, and efficiency through timely and technically sound contracting solutions. Dittmer maintains consistent working relationships with a select group of specialized contractors, most notably Mary Helen Parkey and Arabic Interpreters LLC, reflecting a focus on niche service providers capable of delivering specialized technical and linguistic support in remote or multi-language operational environments. His procurement patterns emphasize long-term vendor partnerships grounded in performance history and regulatory compliance, particularly with firms experienced in utility-scale infrastructure and field-based maintenance services. A pronounced commitment to small business participation defines his contracting approach, with over 75% of awards structured as total small business set-asides under FAR 19.5. He actively prioritizes socioeconomic programs, including service-disabled veteran-owned small business set-asides and 8(a) competed contracts, fostering equitable access to federal opportunities for underserved contractors. His procurement strategy reflects a deliberate alignment with DOE’s broader goals of economic inclusion and regional workforce development. Dittmer’s technical focus is anchored in NAICS 237130, which governs power and communication line construction, accounting for nearly half of his portfolio. He routinely procures services related to transmission tower installation, right-of-way clearance, substation modernization, and related civil works, demonstrating deep expertise in energy infrastructure domains. Additional activity in commercial and industrial building construction supports ancillary facility upgrades, reinforcing his role as a key enabler of the Department’s mission to secure a resilient national power grid.

Key Metrics

Total Contracts

181

Associated contracts

Industries

46

NAICS categories

Set-Aside Programs

2

Program types

Set-Aside Share

37.6%

Small-business awards

Procurement Analytics

Where this contracting officer directs award activity across Western-Sierra Nevada Region, by industry and small-business set-aside program.

Awards by NAICS
237130 - Power and Communication Line and Related Structures Construction41.4441.4%236220 - Commercial and Institutional Building Construction6.636.6%335999 - All Other Miscellaneous Electrical Equipment and Component Manufacturing3.313.3%238110 - Poured Concrete Foundation and Structure Contractors3.313.3%335311 - Power, Distribution, and Specialty Transformer Manufacturing3.313.3%561730 - Landscaping Services3.313.3%236210 - Industrial Building Construction2.762.8%335911 - Storage Battery Manufacturing2.212.2%332510 - Hardware Manufacturing2.212.2%334416 - Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing2.212.2%321215 - Engineered Wood Member Manufacturing1.661.7%562111 - Solid Waste Collection1.661.7%811412 - Appliance Repair and Maintenance1.661.7%333924 - Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing1.661.7%332312 - Fabricated Structural Metal Manufacturing1.661.7%331420 - Copper Rolling, Drawing, Extruding, and Alloying1.11.1%321114 - Wood Preservation1.11.1%238910 - Site Preparation Contractors1.11.1%238220 - Plumbing, Heating, and Air-Conditioning Contractors1.11.1%333112 - Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing1.11.1%541380 - Testing Laboratories and Services1.11.1%237990 - Other Heavy and Civil Engineering Construction1.11.1%811310 - Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance0.550.6%541350 - Building Inspection Services0.550.6%238130 - Framing Contractors0.550.6%238150 - Glass and Glazing Contractors0.550.6%238190 - Other Foundation, Structure, and Building Exterior Contractors0.550.6%238290 - Other Building Equipment Contractors0.550.6%238990 - All Other Specialty Trade Contractors0.550.6%315250 - Cut and Sew Apparel Manufacturing (except Contractors)0.550.6%321213 - Engineered Wood Member (except Truss) Manufacturing0.550.6%331319 - Other Aluminum Rolling and Drawing0.550.6%332999 - All Other Miscellaneous Fabricated Metal Product Manufacturing0.550.6%333120 - Construction Machinery Manufacturing0.550.6%333512 - Machine Tool (Metal Cutting Types) Manufacturing0.550.6%334220 - Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing0.550.6%334290 - Other Communications Equipment Manufacturing0.550.6%334310 - Audio and Video Equipment Manufacturing0.550.6%334519 - Other Measuring and Controlling Device Manufacturing0.550.6%335910 - Battery Manufacturing0.550.6%335921 - Fiber Optic Cable Manufacturing0.550.6%335931 - Current-Carrying Wiring Device Manufacturing0.550.6%335932 - Noncurrent-Carrying Wiring Device Manufacturing0.550.6%336214 - Travel Trailer and Camper Manufacturing0.550.6%336999 - All Other Transportation Equipment Manufacturing0.550.6%423610 - Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers0.550.6%
Set-Aside Breakdown
None - No Set-Aside62.4362.4%

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