The nonprofits we count for.
Ten-plus sectors and counting, because the work travels. Every nonprofit has its own funding rhythm, board expectation, and regulatory reality, and reading a new one quickly is the skill. Every engagement is a 501(c)(3) or (c)(6). Named clients include the San Diego Food Bank, Philadelphia Zoo, Laguna Playhouse, American Swedish Institute, Institute for Public Strategies, Global Technology Industry Association, the Maureen and Mike Mansfield Foundation, and The International School of San Francisco.

One firm. Ten-plus sectors and counting.
Ten-plus sectors is not a lack of focus, it's what focus buys you. Because we work only with nonprofits, the patterns carry — a restricted-fund problem at a food bank rhymes with one at a museum. Human services, arts and culture, zoos and conservation, schools and education, community and public strategy, international affairs, associations, independent schools. Yours will fit.
Sector-by-sector.
Human Services & Food Security
Restricted-fund tracking and interim finance leadership for food banks and human-services agencies.
Arts, Culture & Museums
Season-cycle budgets, endowment reporting, and audit prep for playhouses, museums, and cultural centers.
Zoos & Conservation
Multi-entity accounting, ERP optimization, and capital-project finance for zoos and conservation nonprofits.
Education & Schools
Endowment reporting, restricted-fund accounting, and board-audit readiness for schools and education nonprofits.
See EducationCommunity & Public Strategy
Grant-heavy portfolios and government-contract compliance for community-benefit and public-policy nonprofits.
Industry & Trade Associations
Dues models, chapter accounting, and event-revenue finance for 501(c)(6) associations.
Mental Health & Crisis Intervention
Grant and contract compliance, program-cost allocation, and cash planning for mental-health and crisis-intervention nonprofits.
Talk to us about your organizationReligion Related
Restricted-gift tracking, budgeting, and clear board reporting for faith-based and religion-related nonprofits.
Talk to us about your organizationInternational & Foreign Affairs
Foundation and government grant compliance, program budgeting, and board reporting for international and foreign-affairs nonprofits.
A partial list of the nonprofits we count for.









Six named nonprofit leaders on the work.
Each proposal is paired with the specific engagement outcome it followed, so you can see the shape of the work, not just the sentiment.
Marjorie's calm confidence and friendly demeanor provided us with stability during our transition.
Seamless interim Director of Accounting coverage during permanent recruitment. Month-end closes continued without a missed cycle.
Their expertise, efficiency, and calm command of the work immediately gave our staff and board confidence.
Crisis-period finance leadership through complex audit preparation. Day-to-day operations covered without disruption.
Their optimization of our NetSuite environment has significantly enhanced our reporting capabilities.
NetSuite reconfiguration and executive-team financial literacy uplift during a leadership transition.
One Abacus' outside viewpoint and collaboration allowed us to create a more effective budgeting system.
New budgeting system and cash-forecasting cadence delivered and adopted by the finance team.
They quickly mobilized a talented group of professionals who handled everything with expertise and ease.
Day-to-day accounting and audit preparation carried through a critical grants-heavy period.
Their expertise was instrumental as we rebuilt our financial operations from the ground up.
Financial-operations reconstruction alongside an organizational restructuring.
