Fractional COO
Provides senior operational leadership to improve workflows, strengthen internal systems, support executive teams, and build scalable infrastructure for nonprofits managing growth, change, or increasing complexity.
One Abacus Advisory helps Bay Area nonprofits strengthen operations, finance, and leadership capacity with flexible senior-level support. From board-ready reporting to organizational systems and transition planning, we deliver practical guidance that fits the region's fast-moving funding environment and complex compliance demands.

Flexible consulting support for nonprofit operations, finance, governance, and organizational growth.
Provides senior operational leadership to improve workflows, strengthen internal systems, support executive teams, and build scalable infrastructure for nonprofits managing growth, change, or increasing complexity.
Establishes effective operating rhythms, clearer departmental workflows, and stronger management practices so nonprofit teams can improve accountability, coordination, and day-to-day execution.
Delivers strategic budgeting, forecasting, cash flow visibility, and reporting support that helps nonprofit leaders and boards make informed, mission-aligned decisions with confidence.
Supports complex grant portfolios and government contracts with stronger compliance processes, accurate reporting, and infrastructure that reduces risk and protects funder confidence.
Steps in during leadership transitions or staffing gaps to maintain continuity, stabilize operations, and keep finance and management functions moving without disruption.
Partners with executive directors and boards to improve governance, clarify reporting, and translate complex operational and financial information into actionable insights.
Nonprofit management consulting gives Bay Area organizations access to experienced leadership without the overhead of full-time executive hires. One Abacus Advisory helps strengthen operations, financial stewardship, governance, and internal systems so teams can navigate growth, leadership transitions, and demanding grant environments with greater clarity, stability, and confidence.

Supporting nonprofit leaders through growth, transitions, and complex operational and financial challenges.
Nonprofits choose us for practical leadership, financial clarity, and flexible support tailored to mission-driven organizations.
Dedicated nonprofit expertise supports stronger decisions, cleaner reporting, and mission-aligned operational planning.
Bay Area organizations get right-sized executive guidance without committing to a full-time leadership hire.
Clear, actionable reporting helps executives and boards navigate oversight, planning, and accountability confidently.
Experience with grants, audits, and internal controls helps Bay Area nonprofits manage demanding oversight environments.
Experienced advisors for mission-driven nonprofit leadership.

Founder, Consulting CFO
Lorin Port is the Founder and Consulting CFO of One Abacus Advisory, bringing over 25 years of finance and accounting experience to the nonprofit sector. With a dedicated focus on nonprofit financial leadership for the past nine years, Lorin specializes in fractional CFO and COO services, nonprofit accounting, and NetSuite optimization. He has partnered with prominent organizations such as the San Diego Food Bank, Philadelphia Zoo, and Laguna Playhouse, delivering strategic financial guidance during periods of growth, transition, and complexity. Lorin is committed to empowering nonprofit leaders and boards with clear, actionable insights that drive stronger decisions and long-term organizational health. His flexible, right-sized approach ensures each client receives tailored support that aligns with their unique mission and operational needs.
Nonprofit consulting costs vary based on scope, seniority, and engagement length. Fractional leadership, financial oversight, grants management, and operational consulting are typically priced higher than one-time assessments because they involve ongoing executive support. One Abacus Advisory offers flexible, right-sized services so organizations can access senior expertise without the cost of a full-time CFO, COO, or CHRO.
Talk with our team about your nonprofit's goals and challenges.
Deep finance and accounting leadership background.
Specialized support for mission-driven organizations.
Flexible CFO and COO consulting expertise.
Share your organization's needs and we'll discuss the right level of operational, financial, or leadership support.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.