AFT Fathom Alternatives (September 2025)

AFT pipe flow analysis and modeling software is used by engineers in over 80 countries. Learn more and download a free demo.

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1.
OpenFlows WaterCAD - Water Distribution Modeling and Analysis Software - INAS S.A.
https://www.ina
.ro/en/bentley-watercad/

OpenFlows WaterCAD is an easy-to-use hydraulic modeling application for the analysis, design, and operation of water distribution systems.

2.
HydroCAD Stormwater Modeling
http://www.hydroca
.net/

HydroCAD, hydrology and hydraulics software for modeling stormwater runoff and designing stormwater management systems

3.
FastPIPE, FastDUCT & FastWRAP - Estimating Software
https://fastest-in
.com/

Estimating and takeoff software for commercial plumbing, piping, mechanical, HVAC, sheet metal & insulation contractors

4.
CAESAR IIĀ® | Hexagon
https://hexago
.com/products/caesar-ii/

Discover why CAESAR II is the preferred pipe stress analysis solution of engineers around the world.

5.
FastPIPE, FastDUCT & FastWRAP - Estimating Software
https://fastest-in
.com/fastduct/

Estimating and takeoff software for commercial plumbing, piping, mechanical, HVAC, sheet metal & insulation contractors

6.
CFD Software: Fluid Dynamics Simulation Software
https://www.ansy
.com/products/fluids/

See how Ansys computational fluid dynamics (CFD) simulation software enables engineers to make better decisions across a range of fluids simulations.

7.
RoadEng Civil Engineer | Easy Road & Corridor Design Software
https://www.softre
.com/products/roadeng-civil-engineer/

RoadEng is a clean, simple and highly interactive corridor design tool. Ideal for a variety of projects: rural road & highways, rail & pipeline, forest & resource roads, and stream reconstruction. Download a free trial!

8.
World-Class Groundwater Modeling Software - Waterloo Hydrogeologic
https://www.waterloohydrogeologi
.com/

At Waterloo Hydrogeologic, our goal is to provide powerful, and yet easy-to-use, groundwater software to professionals in the environmental business. We remain an industry leader with over 5,000 registered installations of our software in over 75 different countries around the world.

9.
Ansys | Engineering Simulation Software
https://catalog.ansy
.com/

Ansys engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.

10.
Ansys Mechanical | Structural FEA Analysis Software
https://www.ansy
.com/products/structures/ansys-mechanical/

Solve complex structural engineering problems with Ansys Structural FEA analysis software solution for implicit and explicit structural analysis.

11.
PLAXIS 2D: Geotechnical Engineering Software | Bentley Systems
https://www.bentle
.com/software/plaxis-2d/

PLAXIS 2D is user-friendly geotechnical finite element analysis software for engineers to model, simulate, analyze and deploy geotechnical projects.

12.
Forest Engineering | Softree Technical Systems
https://www.softre
.com/industry/forestry/

Forest road layout, design and engineering software. Plan culverts, road networks, cable harvesting and more.

13.
Simcenter STAR-CCM+ CFD software | Siemens Software
https://plm.sw.siemen
.com/en-US/simcenter/fluids-thermal-simulation/star-ccm/

Simcenter STAR-CCM+ is a computational fluid dynamics (CFD) software used to simulate products operating under real world conditions.

14.
Structural Analysis and Design | SkyCiv Engineering
https://skyci
.com/

A leading online structural analysis and design software, offering a wide range of design and analysis software for any structures.

15.
CHEMCAD | Chemical Engineering Simulation Software by Chemstations
https://www.chemstation
.com/CHEMCAD/

Intuitive, customizable and backed by unmatched technical support, CHEMCAD is the leading chemical engineering simulation software that adapts to your specific needs. Start solving simple and complex chemical processes with incredible efficiency today.

16.
Revit for MEP Engineering | Mechanical, Electrical, Plumbing | Autodesk
https://www.autodes
.com/products/revit/mep/

Revit software helps MEP engineers, detailers, and fabricators model, analyze, and iterate systems design in BIM to support better performance and sustainability.

17.
Tecplot 360 CFD post processing tools to analyze data
https://tecplo
.com/products/tecplot-360/

Tecplot 360 integrated postprocessing environment allows you to analyze detailed flow-field data while producing exceptional visual output

18.
Simulations Plus | Modeling & Simulation Software
https://www.simulations-plu
.com/

We offer modeling and simulation software and solutions which bridge machine learning, PBPK/pharmacokinetics, quantitative systems pharmacology/QST

19.
PLAXIS 3D: Geotechnical Engineering Software | Bentley Systems
https://www.bentle
.com/software/plaxis-3d/

PLAXIS 3D is geotechnical finite element analysis software for engineers to model, simulate, analyze and deploy staged construction in geotechnical projects.

20.
Hydrologic Engineering Center
https://www.hec.usace.arm
.mil/

The official public website of the U.S. Army Engineer Hydrologic Engineering Center (HEC)

21.
Aquaveo - Water Resources Software & Engineering Services
https://www.aquave
.com/

Aquaveo: Water resources software and engineering consulting services for modeling groundwater, surface-water, and watershed hydraulics & hydrology.

22.
AutoTURN - Vehicle Swept Path Analysis Software | Transoft Solutions
https://www.transoftsolution
.com/civil-and-transportation/software/swept-path-analysis/autoturn/

Improve design efficiency with Transoft Solutions' Vehicle Swept Path Analysis software, ideal for optimizing vehicle tracking and analysis. Try it now!

23.
Ansys Chemkin-Pro | Chemical Kinetics Simulation Software
https://www.ansy
.com/products/fluids/ansys-chemkin-pro/

See how Ansys Chemkin-Pro models gas-phase and surface chemical reactions in combustion systems in cars, trucks, jet engines, boilers, and more.

24.
RS3 | 3D Finite Element Software For Advanced Analysis | Rocscience
https://www.rocscienc
.com/software/rs3/

RS3 is a complete 3D geotechnical finite element software package for rock and soil. RS3 is used for excavation design, tunnel design, and more!

25.
@RISK | Best Risk Software in Excel
https://lumiver
.com/products/at-risk/

@RISK software is an add-in tool for Microsoft Excel that helps you make better decisions using Monte Carlo simulation

26.
Simcenter Amesim | Siemens Software
https://plm.sw.siemen
.com/en-US/simcenter/systems-simulation/amesim/

Optimize system performance early in the design stages to boost engineering productivity with Amesim system simulation software.

27.
Ansys Fluent | Fluid Simulation Software
https://www.ansy
.com/products/fluids/ansys-fluent/

Ansys Fluent is the industry-leading fluid simulation software known for its advanced physics modeling capabilities and unmatched accuracy.

28.
3D Simulation Modeling and Analysis Software | FlexSim
https://www.flexsi
.com/

FlexSim provides software to model, simulate, analyze, and visualize (in 3D!) any system in manufacturing, material handling, healthcare, warehousing, supply chain, and more.

29.
Ansys SpaceClaim | 3D CAD Modeling Software
https://www.ansy
.com/products/3d-design/ansys-spaceclaim/

3D modeling software to create, edit, and modify CAD or STL files for design, reverse engineering, simulation, manufacturing, 3D printing, and sheet metal.

30.
Aspen HYSYS | Process Simulation Software | AspenTech
https://www.aspentec
.com/en/products/engineering/aspen-hysys/

Maximize safety, sustainability and profits by optimizing the entire site in one environment using industry-validated simulation and time-saving workflows with AspenTech.

31.
Simulation Software | Engineering in the Cloud | SimScale
https://simscal
.com/_en/?/

SimScale is a full-cloud CAE simulation software that helps you perform CFD, FEA, and thermal simulations for CAD models in the cloud.

32.
FastPIPE - Plumbing & Mechanical Estimating Software
https://fastest-in
.com/FastPIPE/

Estimating and takeoff software for commercial plumbing, piping, mechanical, HVAC, refrigeration and waste water contractors

35.
PetraSim Software- RockWare Software & Consulting
https://www.rockwar
.com/support/petrasim/

PetraSim software is the graphical interface for the TOUGH2 family of simulators. Solve challenging subsurface flow problems with PetraSim

36.
Site3D - Civil Engineering Design Software
https://www.site3d.c
.uk/

Site3D is a fully featured software product for the engineering design of road systems, roundabouts, residential developments and earthworks.

37.
Tekla Structural Designer - Design and Analysis Software | Tekla
https://www.tekl
.com/us/products/tekla-structural-designer/

Tekla Structural Designer is award-winning software that gives engineers the power to analyze and design buildings efficiently and profitably. Start your FREE 30 day trial now!

38.
SOLIDWORKS 3D CAD Simulation Software for Engineering & Manufacturing
https://www.solidwork
.com/product/solidworks-simulation/

Subject your designs to real world conditions to raise product quality while reducing prototyping and physical testing costs.

39.
Simcenter simulation software | Siemens Software
https://plm.sw.siemen
.com/en-US/simcenter/

Simcenter is a flexible, scalable portfolio of the best predictive simulation software and test applications that support every step of your digital journey.

40.
Simulation, Production Planning and Scheduling Software | Simio
https://www.simi
.com/

Simio provides the software for simulation, production planning and scheduling innovations that gives you fast risk analysis and cost reduction.

42.
PV EliteĀ® | Hexagon
https://hexago
.com/products/pv-elite/

PV Elite provides engineers, designers, and inspectors with solutions that match their pressure vessel and heat exchanger design needs.

43.
VOSE | Quantitative Risk Analysis & Risk Management Software
https://www.vosesoftwar
.com/

Complete range of integrated quantitative risk analysis and management software supported by consulting and training services.

44.
Autodesk | 3D Design, Engineering & Construction Software
https://gbs.autodes
.com/

Autodesk is a global leader in design and make technology, with expertise across architecture, engineering, construction, design, manufacturing, and entertainment.

45.
Autodesk | 3D Design, Engineering & Construction Software
https://www.autodes
.com/

Autodesk is a global leader in design and make technology, with expertise across architecture, engineering, construction, design, manufacturing, and entertainment.

46.
Autodesk | 3D Design, Engineering & Construction Software
https://construction.autodes
.com/

Autodesk is a global leader in design and make technology, with expertise across architecture, engineering, construction, design, manufacturing, and entertainment.

47.
SACS Offshore Structure | Bentley Systems | Infrastructure Engineering Software Company
https://www.bentle
.com/software/sacs-offshore-structure/

Optimize design to ensure compliance, understand behavior, and accurately predict the performance of all types of offshore structures.

48.
Autodesk | 3D Design, Engineering & Construction Software
https://viewer.autodes
.com/

Autodesk is a global leader in design and make technology, with expertise across architecture, engineering, construction, design, manufacturing, and entertainment.

49.
Ansys Twin Builder | Create and Deploy Digital Twin Models
https://www.ansy
.com/products/digital-twin/ansys-twin-builder/

Explore Ansys Twin Builder, a powerful digital twin platform for modeling, simulating and analyzing virtual system prototypes and predictive maintenance.

50.
OpenRoads Designer | Roadway Design Software | Bentley Systems
https://www.bentle
.com/software/openroads-designer/

OpenRoads Designer is a road design software for plant documentation, surveying, stormwater design & analysis, visualization, geotechnical, underground utilities, and much more.

51.
AnyLogic: Simulation Modeling Software Tools & Solutions for Business
https://www.anylogi
.com/

AnyLogic is the leading simulation software for business, utilized worldwide in many industries, including logistics, manufacturing, mining, healthcare, etc.

52.
ETAP | Energy Management Solution | Electrical Digital Twin Platform
https://www.eta
.com/

ETAP provides market-leading software solutions for electrical systems, from design and engineering to operations and maintenance. Through its integrated electrical digital twin platform, ETAP delivers best-in-class, seamless customer experience and cloud-leveraging technologies ensuring universal accessibility for designers, engineers, and operators empowering users to increase productivity, collaboration, and efficiency, and enabling their energy transition journey.

53.
Ansys LS-DYNA | Crash Simulation Software
https://www.ansy
.com/products/structures/ansys-ls-dyna/

Explore Ansys LS-DYNA, an explicit dynamics solver that simulates the extreme materials deformation response of structures to periods of severe loading.

54.
Tekla Tedds - Structural Analysis Software | Tekla
https://www.tekl
.com/us/products/tekla-tedds/

Automate your civil and structural analysis calculations. Enhance QA processes and combine with your 2D frame analysis. Download a full FREE Tedds trial today.

55.
Ansys HFSS | 3D High Frequency Simulation Software
https://www.ansy
.com/products/electronics/ansys-hfss/

Ansys HFSS 3D electromagnetic simulation software for designing and simulating high-frequency electronic products such as antennas, PCBs, IC packages, etc.

57.
CAD Software - 2D/3D CAD - BricsysĀ®
https://www.bricsy
.com/en-us/

BricsCAD is a single, native-DWG platform with five product levels including 2D drafting, 3D modeling, BIM, and mechanical design toolsets.

58.
RocFall2 | Assess slopes that are at risk of rockfalls
https://www.rocscienc
.com/software/rocfall/

RocFall2 is a 2D statistical analysis software program designed to assess slopes at risk for rockfalls.

60.
Geophysics Product Software Solution | SeisWare
https://seiswar
.com/solutions/products/geophysics/

From 3D mapping to geophysical modelling, our geophysics software streamlines workflows and enhances analysis so you can drive insights with efficiency.

61.
Bricsys 24/7 - The Ultimate Collaboration Platform for CAD
https://www.bricsy
.com/en-us/247/

Bricsys 24/7 construction project management software is designed for CAD collaboration to help streamline workflows & improve productivity.

62.
Windographer | Wind Data Analytics and Visualization Solution | UL Solutions
https://www.u
.com/software/windographer-wind-data-analytics-and-visualization-solution/

Our industry-leading software for analyzing and visualizing wind resource data that allows importing of any type of data format, rapid quality control and statistical analyses, including MCP, and exports to all common wind flow models.

63.
Modo — 3D Modeling, Animation & Rendering Software | Foundry
https://www.foundr
.com/products/modo/

Modo is a world-class 3D design software. It empowers designers to handle 3D modeling, animation, texturing & rendering at the speed of thought.

64.
Carlson Civil - Civil & Road design CAD software
https://carlsonp
.com/products/carlson-civil/

Road, Site, and Subdivision design automation in less time with minimal resources. Carlson RoadNET highway design. Import and export to various file formats including Civil3D, LandDesktop, AutoCAD (dwg, dgn, dxf)

65.
Logiciels de simulation de procƩdƩs et de gƩnie chimique
https://www.prosi
.net/

Fives ProSim propose des logiciels de simulation de procĆ©dĆ©s et des prestations de service qui permettent aux industries d’amĆ©liorer leur efficacitĆ© opĆ©rationnelle.

66.
Simcenter 3D | Siemens Software
https://plm.sw.siemen
.com/en-US/simcenter/mechanical-simulation/simcenter-3d/

Simcenter 3D is a comprehensive, fully integrated CAE solution for complex, multidisciplinary product performance engineering including emag and structures.

67.
DecisionTools Suite | Risk & Decision Analysis in Excel | Palisade | Lumivero
https://lumiver
.com/products/decision-tools/

DecisionTools Suite software is an add-in toolkit for Excel that enables better decisions with risk analysis and decision modeling using Monte Carlo Simulation, decision trees, and more

68.
Concepts NREC
https://www.conceptsnre
.com/

Concepts NREC improves the design and manufacturability of turbomachinery, including compressors, pumps, turbines, fans, blowers, and turbochargers.

69.
Air Conditioning Software Programs, HVAC-Calc Heating load calculations
https://www.hvaccompute
.com/

Are you looking for easy to use heat loss heat gain calculation software? Free try before you buy download of Contractor Friendly programs.

70.
Mine Planning Software - GEOVIA Surpac | Dassault SystĆØmes
https://www.3d
.com/products/geovia/surpac/

GEOVIA Surpac provides mining companies with customizable 3D mine planning and geological modelling software for either open pit or underground operations.

71.
RatedPower — Smart energy flow
https://ratedpowe
.com/

We help companies discover the smartest ways to design utility-scale solar PV plants and maximize their profitability through our software.

72.
DraftSightĀ® 2D CAD Drafting and 3D Design Software
https://www.draftsigh
.com/

Professional-grade 2D CAD software that can be used to create, edit, view, and markup any kind of 2D drawing or DWG file.

73.
Ansys Granta EduPack | Software for Materials Education
https://www.ansy
.com/products/materials/granta-edupack/

Ansys Granta EduPack offers a unique set of teaching resources that supports your materials education curricula for engineering and design.

74.
Urban Design Software - Modelur
https://modelu
.com/

Early-stage urban design and feasibility study software that helps you quickly iterate different development alternatives and calculates key urban parameters in real-time.

75.
Clockwork
https://clockwor
.ai/

Join the fastest-growing firms using Clockwork to launch and grow advisory services, deliver client results in minutes, and build a more profitable business.

76.
ENFOS | Software for Environmental Remediation Management
https://www.enfo
.com/

Expertly designed software to manage complexities of remediation and decommissioning, from financial to technical. Used by Boeing, Dow, BP, Shell, BMS and more.

77.
Autodesk Insight | Building Performance Analysis Software
https://www.autodes
.com/products/insight/overview/

Insight building performance analysis software empowers architects and engineers to design more energy-efficient buildings with advanced simulation engines.

78.
Product Design & Manufacturing (PDMC) Collection | Autodesk
https://www.autodes
.com/collections/product-design-manufacturing/overview/

Create your products using the latest 3D product design and manufacturing software, including Inventor, AutoCAD, and Fusion 360, together at one great price.

79.
Statistical Software | JMP
https://www.jm
.com/

Statistical software for Mac and Windows. Interactive, visual statistical data analysis from JMP.

80.
Xait | The X factor for winning bids and proposals
https://www.xai
.com/xaitcpq/

With proposal software & a CPQ solution in combination, you have a system can produce the best possible proposal, faster and with zero errors or omissions.

81.
Modern Construction Materials Testing Software - eFieldDATA
https://efielddat
.com/

eFieldDATA is a powerful cloud based construction materials testing software for geotechnical engineers, field inspectors and staff. Call us for a product demo.

82.
Fabrication ESTmep, CADmep, CAMduct | Get Prices | Autodesk
https://www.autodes
.com/products/fabrication/overview/

Fabrication ESTmepā„¢, CADmepā„¢, and CAMductā„¢ software provide an integrated set of tools for MEP specialty contractors to estimate, detail, and drive fabrication of mechanical building systems.

83.
Netoloji - İş Akışı ve Süreç Yönetim Yazılımları Üreticisi
https://netoloj
.com/

Türkiye’nin ilk No-code BPM platformu E-Flow BPM ile süreƧlerinizi hızlı ve eğlenceli şekilde tasarlayın ve anlık olarak kullanmaya başlayın. Kod bilgisine sahip olmadan tüm iş süreƧlerinizi kendiniz tasarlayın.

84.
Micro drainage - Alumasc Water Management Systems
https://www.alumascwms.c
.uk/knowledge/microdrainage/

Micro Drainage is a tool for civil engineers working on surface water and external drainage calculations. It is the industry standard software for the detailed design of fully integrated storm-water and foul-water drainage systems. Learn more.

85.
UML modeling tools for Business, Software, Systems and Architecture
https://sparxsystem
.com/

UML design and business analysis tool for modeling, documenting, reverse engineering, building and maintaining object-oriented software systems, fast and intuitive. Great features, great price.

86.
Simul8 | Fast, Intuitive Simulation Software for Desktop and Web
https://www.simul
.com/

Simul8 - Change the way your organization makes every day decisions using our optimized simulation software. Book a free demo now.

87.
UML modeling tools for Business, Software, Systems and Architecture
https://prolaborate.sparxsystem
.com/

UML design and business analysis tool for modeling, documenting, reverse engineering, building and maintaining object-oriented software systems, fast and intuitive. Great features, great price.

88.
IGE+XAO : Electrical CAD, PLM and SIMULATION softw | IGE-XAO -- -423
https://www.ige-xa
.com/

Discover a complete range of electrical PLM, CAD, system definition, electrical equipment manufacturing and data management software packages. -- -423

89.
Products - AutoDesSys formZ
https://autodessy
.com/

formZ is a popular, powerful 3d modeling software used to explore, design and deliver extraordinary projects.

90.
ProMiles Trucking Reports and Compliance Software - ProMiles - Designed to Save You Money
https://www.promile
.com/

Learn More About Our Products TRUCK ROUTINGTRUCK NAVIGATON Address to Address Reporting | IFTA Fuel Tax Reporting | Fuel Purchase Reporting | Fuel Managemen ...

91.
The Premiere 3D CAD Library for Manufacturers - Free Demo
https://partsolution
.com/ecatalogsolutions/

The premiere digital 3D CAD library, with trillions of 3D downloads and 800 manufacturer catalogs. Grab your free demo today to give our software a try!

92.
Cash Flow Forecasting Software Ā· Cash Flow Frog
https://cashflowfro
.com/

Elevate financial planning with Cash Flow Frog āœ”ļø The advanced cash flow software for precise forecasts. Seamlessly integrated for growth-focused companies. Try now!

93.
Dryrun | Cash flow forecasting & scenario modeling software
http://dryru
.com/

Automated, yet incredibly flexible forecasting software for cash flow management, sales projections and scenario modeling.

94.
Relatics - Model-Based Systems Engineering Software
https://www.relatic
.com/

Enabling Model-Based Systems Engineering for construction projects. Proven for clients, contractors and engineering firms.

95.
Autodesk Inventor Software | Get Prices & Buy Official Inventor 2025
https://www.autodes
.com/products/inventor/overview/

Autodesk Inventor 3D CAD software is used for industrial design, simulation, and documentation. Buy an Inventor subscription from the official Autodesk store or a reseller.

96.
Civil Designer | Civil Designer civil engineering software - the complete civil Infrastructure design software suite
https://www.civildesigne
.com/

Civil Designer is the preferred civil engineering software package offering a completely integrated civil Infrastructure design solution

97.
MEP Toolset in Autodesk AutoCAD | Features
https://www.autodes
.com/products/autocad/included-toolsets/autocad-mep/

Design and document building systems with the AutoCAD MEP (mechanical, electrical, plumbing) toolset. Create engineering designs within an AutoCAD environment.

98.
Flowlu - Business Management Software
https://flowl
.com/

Flowlu is a comprehensive business management platform that streamlines operations, manages projects, tracks finances, and collaborates with teams - all from one centralized location.

99.
Allplan - BIM - CAD - 3D Software
https://www.allpla
.com/

ALLPLAN a Nemetschek Company - offers 3D CAD software for structural, civil and precast concrete engineering