Elevating nonprofit financial strategies

Financial leadership that answers to your mission, not a quarterly earnings call.

Nonprofit finance and operations leadership at whatever level you need it - Fractional CFO, COO, Senior Finance Director, Controller, plus HR support. Founded by Lorin Port, a finance leader who has spent over 15 years inside nonprofit organizations, not consulting from outside them.

25+
25+ years in finance leadership
“

Their expertise, efficiency, and calm command of the work immediately gave our staff and board confidence.

Adele Adkins, Managing Director, Laguna Playhouse
Nonprofits that count on us
Yellowstone Boys and Girls Ranch
Archdiocese of Philadelphia
Speed Art Museum
The Thacher School
Bridges Academy Los Angeles
Mill Creek
The Riviera Ridge School
San Diego Food Bank
Laguna Playhouse
Philadelphia Zoo
Global Technology Industry Association
American Swedish Institute
Institute for Public Strategies
The Maureen and Mike Mansfield Foundation
The International School of San Francisco
Sonoma Community Action Network
The Grauer School
Fight Colorectal Cancer
Jitasa
Yellowstone Boys and Girls Ranch
Archdiocese of Philadelphia
Speed Art Museum
The Thacher School
Bridges Academy Los Angeles
Mill Creek
The Riviera Ridge School
San Diego Food Bank
Laguna Playhouse
Philadelphia Zoo
Global Technology Industry Association
American Swedish Institute
Institute for Public Strategies
The Maureen and Mike Mansfield Foundation
The International School of San Francisco
Sonoma Community Action Network
The Grauer School
Fight Colorectal Cancer
Jitasa
Our promise

Elevating nonprofit financial strategies, one board meeting at a time.

We take on the finance, operations, accounting, grants, and HR work that keeps nonprofit leaders up at night, and translate it into clear numbers your board can act on. No consulting theatre, no for-profit playbooks. Just senior finance leadership tuned to how nonprofits actually run.

What we do

Four practice areas. One nonprofit-only firm.

Executive, operational, and system-level finance work delivered fractionally - scale it up for an audit or a system conversion, scale it back when things are steady.

3 services

Fractional CFO & COO

Executive finance and operations leadership without a full-time hire. Board-ready reporting, audit prep, cash management, and mission-aligned strategy.

See CFO & COO services
3 services

Senior Finance Team

Hands-on Directors and Controllers who run day-to-day finance, lead accounting staff, and cover interim vacancies without a beat.

See Senior Finance services
4 services

Accounting Optimization

Most accounting bottlenecks aren't the software. We assess people, processes, and systems together, then optimize all three.

See Accounting services
4 services

AI, Grant Writing & HR

Fractional grant writers and analysts, federal and state grant portfolio management, mission-aligned HR leadership, HRIS implementation, and AI readiness for your team.

See Grant & HR services
Nonprofits we serve

Every nonprofit sector, one operating language.

Every sector has its own funding rhythm. We speak all of them, from food-bank inventory cycles to zoo capital projects.

Human Services & Food Security

Restricted-fund tracking and interim finance leadership for food banks and human-services agencies.

Trusted by San Diego Food Bank
How we work with human services

Arts, Culture & Museums

Season-cycle budgets, endowment reporting, and audit prep for playhouses, museums, and cultural centers.

Trusted by Laguna Playhouse and American Swedish Institute
How we work with arts and culture

Zoos & Conservation

Multi-entity accounting, ERP optimization, and capital-project finance for zoos and conservation nonprofits.

Trusted by Philadelphia Zoo
How we work with zoos

Education & Schools

Endowment reporting, restricted-fund accounting, and board-audit readiness for schools and education nonprofits.

How we work with education

Community & Public Strategy

Grant-heavy portfolios and government-contract compliance for community-benefit and public-policy nonprofits.

Trusted by Institute for Public Strategies
How we work with community organizations

Industry & Trade Associations

Dues models, chapter accounting, and event-revenue finance for 501(c)(6) associations and member-driven nonprofits.

Trusted by Global Technology Industry Association
How we work with 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 organization

Religion Related

Restricted-gift tracking, budgeting, and clear board reporting for faith-based and religion-related nonprofits.

Talk to us about your organization

International & Foreign Affairs

Foundation and government grant compliance, program budgeting, and board reporting for international and foreign-affairs nonprofits.

Trusted by the Maureen and Mike Mansfield Foundation
Talk to us about your organization
By the numbers

Numbers you can trace to real engagements.

0
Nonprofit years
0
Clients served
0
Sectors served
Nonprofit advisor reviewing financial charts alongside an executive at a conference table.
Why nonprofits choose One Abacus

Nonprofit-only, board-fluent, ERP-broad.

Four things nonprofit boards keep telling us are hard to find in the same firm. We built the practice around them.

  • Nonprofit-only focus
    Every engagement is a 501(c)(3) or (c)(6). No for-profit distractions, no revenue-growth vocabulary.
  • Board-ready reporting
    Meaningful financial packages your executives and board can read in ten minutes and act on in twenty.
  • ERP breadth
    Hands-on experience across NetSuite, Sage Intacct, Blackbaud Financial Edge, MIP, Microsoft Dynamics 365, and QuickBooks Online.
  • Interim and transition specialty
    Seamless coverage during senior finance searches, leadership transitions, and audit windows. Month-end never slips.
Meet Lorin
Client voices

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.
Outcome

Seamless interim Director of Accounting coverage during permanent recruitment. Month-end closes continued without a missed cycle.

AT
Allyson Tutor
CFO, San Diego Food Bank
“
Their expertise, efficiency, and calm command of the work immediately gave our staff and board confidence.
Outcome

Crisis-period finance leadership through complex audit preparation. Day-to-day operations covered without disruption.

AA
Adele Adkins
Managing Director, Laguna Playhouse
“
Their optimization of our NetSuite environment has significantly enhanced our reporting capabilities.
Outcome

NetSuite reconfiguration and executive-team financial literacy uplift during a leadership transition.

DJ
Dr. Jo-Elle Mogerman
President, Philadelphia Zoo
“
One Abacus' outside viewpoint and collaboration allowed us to create a more effective budgeting system.
Outcome

New budgeting system and cash-forecasting cadence delivered and adopted by the finance team.

IM
Ingrid M. Nyholm-Lange
COO, American Swedish Institute
“
They quickly mobilized a talented group of professionals who handled everything with expertise and ease.
Outcome

Day-to-day accounting and audit preparation carried through a critical grants-heavy period.

BS
Brenda Simmons
CEO, Institute for Public Strategies
“
Their expertise was instrumental as we rebuilt our financial operations from the ground up.
Outcome

Financial-operations reconstruction alongside an organizational restructuring.

KR
Kelly Ricker
COO, Global Technology Industry Association
How an engagement works

Four steps from first call to steady partnership.

A repeatable rhythm, whether you need six months of interim CFO coverage or a multi-year fractional partnership.

1

Free consultation

A 30-minute call with Lorin. We diagnose the real question behind the ask and confirm whether we are the right fit.

2

Discovery & scoping

We review current books, ERP setup, board reporting cadence, and grants portfolio. You get a written scope with hours and outcomes.

3

Fractional engagement

We take on the finance seat you needed. Month-end closes on time. Board packets ship the week before the meeting.

4

Ongoing partnership

As your organization grows, we scale up or hand off to the permanent hire we helped you find.

Good to know

What nonprofit leaders ask us first.

If you are a 501(c)(3) or (6), chances are we’ve worked in your sector. If for some reason we are not the right fit for your organization, we will say so honestly and refer you to a peer firm that is.
Both, depending on the moment. We cover interim CFO windows during searches, we ride alongside a founding ED who is still owning finance, and we work in tandem with in-house finance staff whose ceiling is below the strategic reporting the board now wants.
You pay for the seniority you need, at the fraction of hours you need it, on a fixed monthly retainer or a defined-scope project. No benefits, no recruiting fee, no mis-hire risk. A written scope with hours and outcomes lands after the free consultation.
Deeply: NetSuite, Sage Intacct, Blackbaud Financial Edge, MIP, Microsoft Dynamics 365, and QuickBooks Online. Workflow, chart-of-accounts, integrations, dashboards, and the board reporting on top.
Interim CFO coverage can start within a week. Scoped fractional engagements typically start two to four weeks after the free consultation so we can read the books, meet the team, and land a clean scope.
Yes. Board packets and finance-committee presentations are part of most CFO engagements. Executives tell us the calm at the microphone matters as much as the numbers on the page.
Ready to talk?

Book a free 30-minute consultation with Lorin.

No pitch deck. Bring the question your board keeps asking. We will tell you what we would do first.