Dassault's Cameo Systems Modeler is a Model-Based Systems Engineering (MBSE) solution in one easy-to-use package, enabling single users or an entire engineering team to create, collaborate, and manage systems requirements and designs.

Web: https://www.3ds.com/products/catia/no-magic/cameo-systems-modeler

IBM® Rational® Rhapsody® Architect for Systems Engineers is an integrated, model-driven systems engineering environment for complex projects. It uses Systems Modeling Language (SysML) and Unified Modeling Language (UML) to enable rapid requirements analysis and visual, model-driven design.

Web: https://www.ibm.com/products/systems-design-rhapsody

Capella is an Open Source MBSE tool implementing the Arcadia method. It is a comprehensive, extensible and field-proven MBSE solution focusing on the design of systems architectures. Capella is strongly driven by the current practices and concerns of system engineering practitioners and can be easily mastered by those familiar with SysML language.
Web site : http://www.polarsys.org/capella/

With advanced modeling capabilities, low cost and a wealth of innovative features, Enterprise Architect combined with MDG Technology for SysML is the premier team-based modeling environment for the System Engineer.

Web: http://www.sparxsystems.com/products/mdg_sysml.html

Develop smarter systems with a full lifecycle systems engineering solution. Innoslate is a single solution that supports the entire systems engineering discipline.

Web: https://www.innoslate.com/

Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful. Gaphor implements a fully-compliant UML 2 data model, so it is much more than a picture drawing tool. You can use Gaphor to quickly visualize different aspects of a system as well as create complete, highly complex models. It is open source software and cross-platform.

Papyrus is aiming at providing an integrated and user-consumable environment for editing any kind of EMF model and particularly supporting UML and related modeling languages such as SysML and MARTE.

Web: http://www.eclipse.org/modeling/mdt/papyrus/

GENESYS is model-based systems engineering software that delivers connected, consistent, and complete system designs. It provides an integrated platform that connects the enterprise with ease and provides support from first statement of need to final verification and validation. GENESYS supports agility, enterprise-wide collaboration, scalability, and customization, all in a robust environment.

Following the guidelines for SysML laid out by OMG, Astah SysML represents a broad use platform perfect a wide variety of modeling tasks such as; specifying, analyzing, designing, verifying any number of complex systems. These models are applicable in an even wider variety of systems driven fields including; hardware, procedures, facilities, personal information, software, and, of course, many more.
Web: https://astah.net/products/astah-sysml/

iQUAVIS is an intuitive tool for product development, model-based systems engineering and integrated project management. The tool work based on a database and provides structural and behavioral diagrams as well as (automatically generated) tree views, tables and matrices, aiming to describe requirements, functions and logical elements as well as issues and risks. Originating from Japan, iQUAVIS is widely spread there, but is nowadays used world-wide.

PTC’s Windchill Modeler (formerly Integrity Modeler) helps your systems, software, and product line engineers create consistent, high-quality models to communicate requirements, identify key functions, consider design alternatives, and make good trade-off decisions. By guiding engineers with appropriate industry standards (including UML, SysML and UAF) and automating repetitive tasks, Windchill Modeler reduces development time, effort and cost. It also simplifies the development process and improves product quality by helping to find potential design problems much earlier.

The System Architect Solution is dedicated to
system architects working on SysML modeling, UML/BPMN
modeling and requirement analysis.
http://www.modeliosoft.com/en/products/solutions/system-architect-solution-overview.html

Software Ideas Modeler is a lightweight and powerful tool for the creation of UML diagrams and some other diagrams. It supports all 14 types of UML diagrams, BPMN, SysML, JSD, HTA, Mixed Diagram, Data Flow Diagram, Flowchart Diagram, Robustness Diagram, Entity Relationship Diagram, Requirement Diagram, User Interface modeling, CRC Card Diagram, Concurrency Diagram, etc.

SysML Designer is a graphical tool to edit and vizualize SysML models.
It perfectly integrated in Eclipse and it is free (open-source with EPL license).
As it is based on Sirius, it provides an easy way to combine SysML with domain specific modelling. You can extend the provided diagram definitions and seamlessly work on both SysML and DSL models at the same time.

3SL Cradle - Overview - Cradle is a systems engineering software tool and a requirements management software tool which is fully scalable solution in one tool and on one database

Topcased is a software environment primarily dedicated to the realization of critical embedded systems including hardware and/or software.

Web: http://www.topcased.org

objectiF RM is the tool for effective Requirements Engineering and the easiest way to better requirements. Requirements Engineering for better products.
Web: http://www.microtool.de/en/objectif-rm-tool-for-requirements-engineering/

Explore the capabilities of ANSYS SCADE Architect for model-based systems engineering.

With Tom Sawyer Model-Based Engineering, systems engineers have access to sophisticated automated layout for large and complex SysML models. They can now instantly create data-driven and customizable diagrams with beautiful graphics for the desktop or the web. System engineers can filter data and show nested diagrams with varying levels of detail, and print or save the resulting diagrams. This is becoming increasingly important in application fields that are being shaped by digital transformation and also for progressively complex projects such as those seen in the auto industry, aerospace, and defense markets. Furthermore, systems engineers can automatically and quickly generate Block Definition, Internal Block, and Parametric Diagrams directly from the SysML model. Tom Sawyer Model-Based Engineering includes integration with No Magic MagicDraw, Cameo Systems Modeler, and Teamwork Cloud.
https://www.tomsawyer.com/model-based-engineering-mbse/

Tom Sawyer Software is a proud member of the Object Management Group (OMG) and International Council on Systems Engineering (INCOSE).

 
smartfacts is the one and only solution that provides easy access to models from the most well-known modeling tools like ARIS, Enterprise Architect, MagicDraw, Innovator, Matlab, Rhapsody, Visio and more. Crack the information silos and make more out of your models. Leverage the precision and richness of models in digital transformation and model based systems engineering throughout your organisation.​

Easy-to-use software engineering diagramming tool that supports all contemporary modeling notations. Agilian provides flexible modeling environment for agile software development practitioners to communicate effectively with UML, BPMN, ERD, DFD and mind map. With SysML support: Visualize your system hierarchy. Gain insight to interconnections between system components.

Web: http://www.visual-paradigm.com/product/ag/provides/sysml.jsp

Integrated solution, from requirements and business processes right through to application development
Supports open industry standards (BPMN, UML, SysML, SoaML)
Flexible customization using DSLs and profiles
Central model server supports distributed teams
Open architecture and Java/.NET APIs

Syndeia is digital engineering software for integrated model-based engineering, letting engineers to collaboratively & concurrently manage Digital Thread.

IncQuery Suite is a revolutionary analysis & integration tool transforming your systems engineering processes. Analyze your digital threads effectively.