Hello! I'm Ashley,
Professional Bookkeeper
from San Diego.

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About

What is a Bookkeeper? The Core Columbia Approach

We are a small, outsourced bookkeeping firm that tailors a personalized service for you.

WE KNOW BOOKKEEPING.

Financial Peace of Mind

About Core Columbia Bookkeeping Services

Ashley’s approach to bookkeeping is rooted in precision, transparency, and long-term support.

One may ask, “What is a bookkeeper?” Understanding what a bookkeeper is starts with trust, accuracy, and expertise. A bookkeeper is so much more than simply tracking expenses, a great one can transform your entire business through the implementation of strategic business systems. Core Columbia is an expert bookkeeping firm and QuickBooks online advisory that provides monthly bookkeeping for small business owners to help you gain confidence in your financial systems. We specialize in high quality personal tailored service that allows our customers to feel valued.

Founded in 2020 by Ashley Custer, an expert bookkeeper and QuickBooks Pro Advisor, Core Columbia Financial was built with a clear mission: to deliver expert level bookkeeping services that are both accessible and tailored to the real needs of growing businesses.

Many small business owners struggle to balance the cost of bookkeeping, with the quality of service they receive. When trying to understand what a bookkeeper is –  and what level of support they truly need, business owners are often forced to choose between affordable solutions that lack quality and premium services that come with unnecessary overhead. Core Columbia’s mission is to bridge that gap by offering reliable, professional monthly bookkeeping at reasonable rates, so you can focus on growth while feeling at ease.

Core Columbia

Our Values

As a small outsourced bookkeeping team, we provide customized services designed specifically for your business.

1.) PERSONALIZED SERVICE

Every client receives customized attention and solutions designed just for them.

2.) TRUSTED PARTNERSHIP

As a small firm, you always know exactly who is handling your books.

3.) REAL PEOPLE, NOT AI

We oversee all operations. Know you are working with a real human.

“I am a bookkeeper and Quickbooks Pro Advisor who works with clients in a wide variety of industries, from legal, to construction, entertainment, property management, the cruise ship industry, etc. Whether you’re just starting out as a sole prop or have been running a corporation for years, I have the extensive accounting knowledge your business needs to grow to the next level and minimize your tax burden. And I’m always here if you need me.” – Ashley Custer

Core Columbia Bookkeeping

Meet Ashley Custer | Her Story

Ashley brings six years of experience in bookkeeping and accounting, serving clients
across a wide range of industries.

100+

Happy Clients

100%

We Get Results

2019

Established In

Understanding what a bookkeeper is starts with experience, accuracy, and trust. Ashley has a background of serving clients in bookkeeping and accounting for six years now, helping clients across a variety of different industries. As the founder of Core Columbia, Ashley combines technical expertise with a deep understanding of small business operations.
Through Core Columbia Financial, she provides dependable monthly bookkeeping services designed to meet the evolving needs of small businesses.

Proud to work with

Our Clients

Our monthly bookkeeping for small business services supports a large variety of industries. We understand that each business has specific financial needs, our experience allows us to adapt seamlessly. Whether you’re a new sole proprietor, just getting started, or a seasoned corporation looking to optimize financial processes, Core Columbia Financial provides the expertise and tools to help you scale efficiently while minimizing tax burdens.

Partnerships & Corporations

Managing payroll, multiple payment platforms, and multi-state operations.

Enterprise Businesses

Handling Accounts Payable (AP), Accounts Receivable (AR), and other scaling needs.

Non-Profits

Grant invoicing, tracking allocations, and tax-exempt setup.

Medical Practices

Bookkeeping for small specialty clinics, women’s health centers, and independent therapists.

Construction & Trades

Financial management for contractors, builders, and service providers.

Marketing & Creative Agencies

Budgeting and financial tracking for production companies and independent creatives.

Property Management

Supporting landlords, real estate professionals, and development companies.

Food Trucks & Hospitality

Managing fluctuating cash flow, vendor payments, and operational expenses.

Contact

Let's Work Together.

Let’s find out how to work together and create something meaningful or valuable.

206-538-3338
ABOUT

Core Columbia is a small, relationship-driven bookkeeping firm built on personalized service and trust. Since 2019, we’ve helped businesses organize their finances and move forward with clarity and confidence.

OUR PARTNERS
  • 206-538-3338
  • ashley@corecolumbia.com
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