Heirloom Carbon vs Diligent ESG
Side-by-side comparison of AI visibility scores, market position, and capabilities
$475M committed for two Louisiana DAC facilities (17K + 100K tonne/yr). First commercial-scale DAC going operational in 2026. DOE Project Cypress hub partner.
About
Heirloom Carbon is one of the only direct air capture (DAC) companies to cross from pilot scale to actual commercial operation in 2026, with its first facility in Shreveport, Louisiana going operational this year. The company has secured $475 million in committed investment for two Louisiana plants: a 17,000-tonne-per-year facility now operational and a 100,000-tonne-per-year facility under development — representing the largest DAC buildout in North America.
New York NY. Board governance and ESG management platform serving 700,000+ board members globally, acquired Galvanize and BoardEffect for integrated risk and ESG.
About
Diligent is a New York-based governance, risk, and compliance (GRC) platform that has become one of the largest providers of board management and ESG software globally. The company serves over 700,000 board members and executives across 90+ countries, and has expanded its platform through strategic acquisitions including Galvanize (compliance and audit management) and BoardEffect (board portal for nonprofits and healthcare). Its ESG module integrates ESG data management with board-level governance workflows.\n\nDiligent ESG enables companies to collect ESG metrics across environmental, social, and governance dimensions, align with major reporting frameworks including GRI, TCFD, SASB, and the UN SDGs, and prepare board-level sustainability reports. The platform connects ESG performance data directly to the board agenda management workflow, allowing directors to review and approve sustainability disclosures within the same secure environment they use for board meetings and governance.\n\nDiligent targets large public companies, financial institutions, and regulated organizations that need to demonstrate strong governance around their ESG programs, not just report data. It competes with ServiceNow ESG, Workiva, and SAP Sustainability in the enterprise segment. Diligent's key differentiator is the integration of ESG with board governance—allowing sustainability to be managed as a fiduciary responsibility rather than a standalone compliance exercise.
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