Ebb Carbon vs Diligent ESG
Side-by-side comparison of AI visibility scores, market position, and capabilities
Ebb Carbon uses electrochemical ocean alkalinity enhancement (OAE) to accelerate CO2 absorption by seawater and reduce ocean acidity; founded by ex-Tesla/SolarCity/Google X executives; raised $20M+ including a $17M Series A;
About
Ebb Carbon is a climate technology company founded in 2021 and based in South San Francisco, California, that has developed an electrochemical process to enhance the ocean's natural capacity to absorb and permanently store carbon dioxide. The company's core technology is based on ocean alkalinity enhancement (OAE): it uses electrolysis to remove acid from seawater, increasing its alkalinity, which causes the water to absorb additional CO2 from the atmosphere as a natural chemical response. The resulting carbon is stored as dissolved bicarbonate — stable in the ocean for tens of thousands of years — while the process simultaneously reduces local ocean acidity, partially countering ocean acidification in the areas where it is deployed. Ebb Carbon was founded by executives with deep experience in scaling clean energy technology, including alumni of Tesla, SolarCity, and Google X.
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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