Ramirez, Johnson & Associates Llc

What Ramirez, Johnson & Associates Llc does

Ramirez, Johnson & Associates LLC (d/b/a RJA Engineering) is a private, full-service mechanical, electrical, and plumbing (MEP) engineering firm founded in 2009 and headquartered in Denver, Colorado, with a second office in Bozeman, Montana opened in 2025. The firm provides building systems design across HVAC, electrical (including low-voltage systems), plumbing, fire protection, and medical gas, complemented by commissioning, energy modeling, and sustainability/LEED consulting. It serves a diversified client base across commercial, food service and hospitality, healthcare, government and municipal, multi-family residential, education, industrial, retail, and community/non-profit segments, with projects ranging from $1,000 tenant improvements to $100,000,000 large-scale commercial and institutional builds. Notable engagements include Park Burger, Birdcall, BolandStudio2 of Architecture, CDOT E470, Greeley City Hall, and Summitstone Health.

The firm's technical foundation is built on BIM/VDC design using Autodesk Revit and Navisworks for 3D coordination, supplemented by physics-based building energy simulation for code compliance and LEED/Green Globes documentation. The team of approximately 17-20 staff is led by founding partners Darin Ramirez, PE (Certified Geoexchange Designer) and Eric Johnson (Architectural Engineering, University of Colorado), supported by business manager Jessie Thomas and engineers holding CxA commissioning, LEED AP, and NCQLP Lighting Certified credentials. The firm holds Professional Engineering licenses in 19+ states and maintains SBE/EBE, Certifiably Green Denver, and AABC Commissioning Group certifications.

RJA operates as a relationship-driven professional services firm with a direct sales motion targeting architects, developers, government entities, healthcare providers, and individual business owners. Revenue is generated through project-based engineering fees on customized scopes, with multi-year contracts and billing tied to project complexity rather than standardized pricing tiers. Marketing is primarily word-of-mouth referral from architectural firms, supported by a website portfolio. Ownership remains founder-controlled with no disclosed external institutional investment, acquisitions, or restructuring activity.

Name

Ramirez, Johnson & Associates Llc

Legal name

Ramirez, Johnson & Associates, LLC

Website

https://rja-eng.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

RJA Engineering is a private, full-service MEP (mechanical, electrical, plumbing) engineering firm founded in 2009, headquartered in Denver with a Bozeman, Montana office, serving architects, developers, healthcare, government, and commercial clients across 19+ states with design, commissioning, and energy modeling services.

Ownership category

akta.pro rank

Product category

MEP Engineering Services

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

MEP (Mechanical, Electrical & Plumbing) Engineering Consulting (BPAHAIAE)

Keywords

• MEP engineering design
• Building commissioning
• Energy modeling services
• Sustainable design consulting
• HVAC engineering

Headquarters

HQ city

Denver

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 Design Services: Professional engineering services for mechanical, electrical, and plumbing (MEP) systems design. Revenue generated through consulting and design fees for building systems projects ranging from $1,000 to $100,000,000 in project value.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Ramirez, Johnson & Associates provides mechanical, electrical, and plumbing (MEP) engineering design, building systems commissioning, and energy modeling/sustainability consulting for commercial, healthcare, food service, multifamily, government, industrial, and residential projects. Services cover HVAC, electrical power and lighting, plumbing, fire protection, medical gas, low-voltage systems, and verification that building systems operate as designed.

Product overview

Ramirez, Johnson & Associates (RJA) is a full-service MEP (Mechanical, Electrical, and Plumbing) engineering firm providing integrated building systems design and commissioning services. The company offers a unified portfolio of engineering services centered on mechanical/HVAC systems design, electrical systems design (power, lighting, and low-voltage), plumbing design, fire protection, medical gas systems, and commissioning. Supporting services include energy modeling and analysis, and sustainability/LEED consulting. The firm serves diverse project types including commercial, retail, restaurants, healthcare, multi-family housing, municipal/government, and industrial facilities, primarily in Colorado and Montana.

Differentiator

Problem solved

Functional benefit

Products and services

• Mechanical (HVAC) Engineering Services Design of HVAC systems including heating, ventilation, air conditioning, and temperature controls/automation for commercial and residential buildings.
• Electrical Engineering Services Design of electrical power, lighting, and low-voltage systems for commercial, retail, municipal, and specialty buildings.
• Plumbing Engineering Services Design of plumbing systems including domestic hot water, sanitary, and specialized systems for various building types.
• Fire Protection Design Design of fire protection systems including fire alarm systems for buildings and facilities.
• Medical Gas Systems Design Design of hospital medical gas systems including bulk and local systems for healthcare facilities.
• Commissioning Services Systematic verification that building systems including HVAC, lighting, electrical, plumbing, and specialty systems operate as designed; includes new building commissioning and retro-commissioning/re-commissioning for existing buildings.
• Energy Modeling and Analysis Full building energy modeling to quantify energy use and cost savings, compare design alternatives, and document compliance with energy codes and building rating systems such as LEED and Green Globes.
• Sustainability Consulting Sustainability consulting including high-performance design, energy conservation measures, and utility/government rebate identification, supporting LEED certification and green building standards.
• Low Voltage Systems Design Design of structured cabling systems (Cat6/fiber), A/V, access control, CCTV, and building automation systems for commercial projects.

Quantifiable outcome

• Systems commissioned include VAV air handling systems, industrial condensing water systems, split system A/C, steam and heating water boilers, domestic hot water, daylight harvesting lighting, occupancy sensors, and emergency power systems
• +1 more outcomes

Named customers18 records

Segments10 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves4 records

Expansion highlights5 records

Direct peers

• dbHMS: MEP and sustainable design consultancy with comparable focus on energy modeling, LEED certification, and integrated design for commercial and institutional buildings.
• ME Engineers: MEP engineering consulting firm with strong sustainability and high-performance building design practices, serving commercial, healthcare, and cultural projects of similar scope and complexity to RJA.
• Karpinski Engineering: Ohio-based MEP engineering firm with integrated design and commissioning, comparable in size and service mix to RJA, serving commercial, healthcare, and higher education markets.
• Interface Engineering: MEP and sustainable design consulting firm with offices in the western US; comparable portfolio in commercial offices, healthcare, and high-performance buildings with strong energy modeling focus.
• ME Group: Mid-size MEP engineering consulting firm with integrated commissioning services; serves similar end markets including healthcare, education, and commercial real estate.
• Affiliated Engineers (AEI): National MEP engineering consultancy with comparable integrated design and commissioning services for healthcare, higher education, and science & technology facilities.
• CMTA: Engineering firm specializing in MEP design and energy consulting with a long-standing reputation for energy modeling, commissioning, and high-performance design — directly overlapping RJA's core services.

Broad incumbents

• Stantec: Global professional services firm with significant building engineering, MEP design, commissioning, and sustainability practices; provides the upper-bound competitive threat on larger pursuits where RJA cannot bid.
• Page (a Stantec company): Engineering consultancy with strong MEP design and commissioning practice, now part of Stantec; competes with RJA on healthcare, higher education, and civic projects at a larger scale.
• Burns & McDonnell: Large employee-owned engineering firm offering MEP, commissioning, and energy services as part of a much broader infrastructure portfolio; competes for larger commercial and government projects in the Mountain West.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ramirez-johnson-and-associates

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Ramirez, Johnson & Associates Llc