Big Ladder Software is a Denver-based company dedicated to providing services and software for energy modelers and energy modeling firms. The company name reflects our mission to "help our clients reach new heights". Founded in 2009, we are a team of engineers and computer programmers who are passionate about developing innovative open-source software tools for building energy modeling. We exclusively use the EnergyPlus simulation engine to perform whole-building energy analyses. We also offer training workshops, commercial support, and custom software development services for EnergyPlus, OpenStudio, DesignBuilder, and California Simulation Engine.
| Website | https://bigladdersoftware.com |
| Revenue | $1 million |
| Employees | 14 (14 on RocketReach) |
| Founded | 2009 |
| Address | 1617 Wazee St. Unit 200, Denver, Colorado 80219, US |
| Phone | +1 303-895-5246 |
| Technologies |
JavaScript
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Google Analytics
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| Industry | Software Development, Architecture, Engineering & Design, Construction |
| Keywords | Energy Modeling Software, Energy Modeling Services, Building Energy Modeling, Energy Simulation Software, Building Simulation Software, Energy Efficiency Software, Energy Performance Analysis, Sustainability Software, Energy Audit Software, Data Analytics For Energy, Renewable Energy Software, Building Energy Codes |
| Competitors | Autodesk, Trane, Carrier, Daikin Industries, Ltd., ASHRAE, IES Ltd., Cimetrics, Energy Avenue, Sefaira +19 more (view full list) |
| SIC | SIC Code 87 Companies, SIC Code 871 Companies |
| NAICS | NAICS Code 54133 Companies, NAICS Code 54 Companies, NAICS Code 5413 Companies, NAICS Code 541 Companies |
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Big Ladder Software Questions
The Big Ladder Software annual revenue was $1 million in 2026.
Peter Ellis is the President of Big Ladder Software.
14 people are employed at Big Ladder Software.
Big Ladder Software is based in Denver, Colorado.
The NAICS codes for Big Ladder Software are [54133, 54, 5413, 541].
The SIC codes for Big Ladder Software are [87, 871].
Top Big Ladder Software Employees
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Peter Ellis
President at Big Ladder Software
Denver, CO, US25+ -
Neal Kruis
Vice President at Big Ladder Software
Golden, CO, US21 -
Ali Smith
Operations Manager at Big Ladder Software
Denver, CO, US24 -
Cesar Galan
Software Engineer at Big Ladder Software
Denver, CO, US21 -
Michael O'Keefe
Engineer at Big Ladder Software
Denver, CO, US31 -
23
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12
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Elyse Malherek
Energy Specialist at Big Ladder Software
Saint Paul, MN, US24 -
Matthew Brandt
Software Engineer at Big Ladder Software
Denver, CO, US35+
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