ESG stands for Environmental, Social and Governance, which are three critical factors in measuring the sustainability and societal impact of an investment in a company or business. A company in ESG Data and Intelligence Software provides tools, data, and insights to help investors, analysts, and businesses assess and manage ESG risks and opportunities. They collect, analyze, and report on ESG metrics, enabling clients to implement sustainable investment strategies, meet regulatory requirements, and drive performance. This could aid in making informed decisions based on a company's ESG performance.

1. Sustainability Assessment Software: This type of software identifies and assesses the sustainability of a company's practices according to ESG (environmental, social, and corporate governance) standards. Examples include EcoVadis, CSRWare, and Greenstone.

2. ESG Reporting Software: This software aids in the creation of ESG reports, disclosing data on a company's environmental, social, and governance performance. Examples include Solstice, Enablon, and Measurabl.

3. Investment Analysis Software: These tools help investors to integrate ESG factors into their investment decisions by providing data and analysis of a company's ESG performance. Examples include Sustainalytics, Trucost, and MSCI ESG Manager.

4. ESG Risk Management Software: The software helps in identifying, evaluating, and mitigating the ESG risks associated with a company's operations. Examples include Reprisk, Datamaran, and Nasdaq OneReport.

5. Supply Chain ESG Software: It helps in monitoring and managing ESG performance across a company's supply chain. Examples include Source Intelligence and Avetta.

6. Carbon Footprint Management Software: These tools help companies measure, manage, and reduce their carbon footprint. Examples include Carbon Analytics, Carbon Footprint, and Metrio.

7. ESG Data Collection and Integration Software: These platforms collect and integrate various ESG data from multiple sources, providing a consolidated view of a company's ESG performance. Examples include FactSet, Refinitiv Eikon, and Bloomberg Terminal.

8. ESG Benchmarking Software: This type of software allows companies to benchmark their ESG performance against peers, industry standards, or predefined criteria. Examples include ISS ESG, Inrate, and MSCI ESG Ratings.

9. Impact Measurement Software: These tools measure a company’s positive impact on society and the environment. Examples include ImpactBase, SoPact, and B Analytics.

1. Stakeholder Engagement Software: This software supports companies in their communication and engagement with stakeholders on ESG issues. Examples include Borealis, Enablon Stakeholder Management, and Salesforce.

Please note that these categories could overlap as many software providers have multiple functions and could fit into more than one category.

ESG (Environmental, Social and Governance) Data and Intelligence Software assist in decarbonization in several ways:

1. Monitoring Carbon Emissions: The software can help companies monitor their carbon emissions on a real-time basis. This information is crucial for companies looking to reduce their carbon footprint.

2. Strategic Planning: Companies can use the insights from ESG software to develop strategic plans for decarbonization. This could involve investing in cleaner energy sources or making changes to business operations to reduce carbon emissions.

3. Reporting: ESG software can make it easier for companies to report on their carbon emissions. This is beneficial both for regulatory compliance and for communicating with stakeholders.

4. Benchmarking: Companies can use ESG data to benchmark their performance against other companies in their industry. This can help identify areas where a company is falling behind in terms of decarbonization.

5. Investment Decisions: Investors are increasingly interested in the ESG performance of companies. By providing accurate and timely ESG data, companies can attract investment from these socially conscious investors.

6. Identifying Risks: The intelligence feature of ESG software helps in identifying potential risks related to carbon emissions, which companies might face in the future.

7. Motivation to Change: The visibility of ESG data encourages companies to take steps to reduce their carbon footprint.

8. Supply Chain Decarbonization: ESG data can uncover high carbon emission areas in a company’s supply chain, leading to more targeted efforts towards decarbonization.

So, ESG Data and Intelligence Software plays a pivotal role in corporate decarbonization efforts. It provides insights and data-driven strategies that assist in more effective and measurable decarbonization actions.

Decarbonizing your company or production process is a veritable step towards contributing to the global climate change mitigation goals. Choosing an ESG (Environmental, Social, and Governance) Data and Intelligence Software vendor can be a daunting task given the wide variety of offerings and capabilities in the market. Here is an outline of steps that might assist in this process:

1. Identify Your Specific Needs: First, assess your company's specific requirements. Are you looking mainly for emission assessments, supply chain analysis, or comprehensive environmental impact assessments? You might want software that provides analysis on all ESG criteria or just focuses on the environmental aspect.

2. Vendor Research: Look for vendors who are known for their ESG software. Have they been in the market for a long time? Do they specialize in this area or is it a small part of their broader services? What reputation do they have in the industry?

3. Software Features: Check if the software has the capabilities you need: Does it have real-time monitoring features? Can it easily integrate with your existing data systems? Does it supply data from reliable and diverse sources? And most importantly, does it have features that help with accurate emissions calculations and reduction strategies?

4. Check Instant Reports Availability: It is necessary for the software to present an immediate analysis of emissions, energy usage, waste disposal, and more.

5. Customer Support: Good customer service that offers a strong support structure, training, and regular software updates is critical.

6. Request for Demo: Have a hands-on experience with the software and understand how it works and what insights it delivers.

7. References & Reviews: Check for reviews and request case studies from potential software vendors. Reach out to their existing clients about their experience with the platform and vendor.

8. Cost Analysis: Understand cost implications - is it worth the initial capital outlay and the ongoing costs for its maintenance? What is the ROI, considering the potential saved expenses on sustainability efforts in the future?

9. Data Security: Security of your data is critical. Make sure to check the security features of the software.

10. Finally, Choose: Make your decision based on previous considerations and also considering your current infrastructure and technological needs.

Be it a small-scale company, or a globally operating multinational – understanding the ESG risks and opportunities is key to ensuring long-term success and sustainability. Thus, your software selection should align with your business goals and sustainability objectives.