The trusted leader in bookkeeping, advisory, and consulting services for A&E companies.

To better understand the services you might need, take our short Bookkeeping Health Survey.

Many of our A&E clients did not have reliable financial reporting and controls before working with InVantage3. Take 1-minute to complete this questionnaire. You will receive your score and recommendations to improve your accounting system.


InVantage3 offers four primary services: Bookkeeping, Advisory, Consulting, and services specifically designed to support architecture and engineering (A&E) companies. We often blend options into a customized solution that’s ideal for each client based on their needs. Following a consult call, we’ll provide you a tailored solution—and can begin implementing as soon as you are ready.


Full or partial services


Controllership & CFO services


Conversions, Reporting, Workflow

A&E Services

Specialized operational solutions

InVantage3 – Trusted Outsource Accounting Solutions in the Pacific Northwest

Peace of mind from confidence in your financial information.

As a business leader, your time and attention are spread thin. Tracking projects and people—and being a vision-caster for your company—can be all-consuming, so the last thing you need is mystery around the accounting health of your business. We get that and know your numbers need to tell you a true story so you can grow your company with confidence.

InVantage3 is regarded as Seattle/Tacoma‘s trusted, go-to resource for bookkeeping services that are reliable, repeatable, and sustainable. We leverage our AcctFlow system to offer a level of remote, responsive customer support  that differentiates us from anyone else in the market and we do this using our client’s cloud-based software tools such as Ajera and Statera among others. You’ll quickly realize you have access to accurate project and financial information, which equates to peace of mind.  InVantage3 specializes in providing bookkeeping services to the architecture and engineering (A&E) industry, as well as other industries. If you’re not sure where to start or what you need, then reach out to us. We offer an obligation-free advisory session to review where you are and options for next steps.

The leader in solutions and support to the A&E industry.

We are industry leaders when it comes to supporting the unique accounting needs of our Architecture & Engineering clients. In addition to InVantage3’s complete suite of accounting and advisory services, we offer software support for Statera from Project First Software and Deltek Ajera. These tools are the A&E industry standard—offering an all-in-one solution covering accounting, project management, payroll, and CRM, so you should have a partner who understands them.