Trusted by Rockefeller Philanthropy Advisors

Professional proofreading for
mission-driven nonprofits.

I proofread grant proposals, annual reports, and donor communications for nonprofits who want to prevent errors from undermining their mission.

Send a Document for a Free Quote Quotes returned within four hours

Errors in your documents are costing you
funding and credibility.

Stressed nonprofit professional reviewing documents at a cluttered desk

When your documents represent your mission, every word matters.

Grant application mistakes can cost six figures in funding, and errors in donor materials or annual reports leak credibility and confidence in your expertise.

But you are constantly on a deadline, with little funding or personnel resources. No one can self-edit effectively, and your program staff are subject matter experts, not writers.

Your nonprofit is expected to publish flawlessly—with minimal resources.

Get your own dedicated, expert proofreader,
available on demand.

I provide expert, on-demand technical proofreading for the high-stakes documents your nonprofit produces. The countless hours you spend writing, designing, and editing documents should not have to go to waste.

With my work, you can be confident that your writing is as polished and effective as the work you do.

Build status, credibility, and funding

by publishing polished, error-free grant applications and annual reports.

Free up program staff

to focus on work they're an expert in, not their writing.

Get senior editorial judgement

without paying a full-time salary.

Maintain a consistent voice

across your team, regardless of how many authors work on a document.

Case Study

See all case studies

Case Study

A Dozen Authors, Zero Consistency

A 100-page flagship guidebook with chapters from a dozen contributors needed citations verified, formatting standardized, and errors corrected directly in InDesign—in under 24 hours. I delivered the document on time and received a 50 percent bonus.

About your proofreader

Meet your second set of expert eyes.

I have spent a decade proofreading high-stakes documents for organizations like Rockefeller Philanthropy Advisors, the CDC, and TEDx.

Prior to becoming a proofreader, I trained under writing instructors from Harvard and MIT and published work in the Harvard Summer Review.

For nonprofits and mission-driven organizations, I:

  • Work as a member of your team, with no contracts, onboarding, or project minimums.
  • Maintain expertise in grant writing conventions, logic models, and funder language.
  • Offer pricing and terms built for your budget.

You can send a project when it arises, and I will turn it around in under 48 hours (with same-day and next-day options available).

If you've ever wanted a trained professional to be the last set of eyes on your grant proposals, annual reports, or donor communications, I’m here for you.

Josiah, professional proofreader at Proofread.co
Josiah Wartak, Proofreader
250+ clients trust proofread.co
10 years of experience
10M+ words proofread
“

Josiah is an amazing communicator, works super fast, and very nice. I was impressed with his ability to turn around our project very quickly.

Sara Ostrovitz | Managing Director of Administration, Essential Partners

FAQ

A few answers before you hit send.

Yes. Registered 501(c)(3) organizations receive a 15 percent hourly rate discount. Just mention your status when you submit your document.

Yes. I work with confidentiality by default. Your information is never shared, stored in an insecure location, or used to train AI. If you need a signed NDA before we start, I'm happy to provide one.

I offer same-day and next-day turnaround options. Of course, the earlier you can send the document, the more thoroughly I will be able to review it. But I understand the demands of nonprofits and will work to meet your needs.

I do not require contracts or project minimums. You can send projects as they arise. My nonprofit clients work with me on an as-needed basis: annual reports one month, a grant proposal the next.

Both tools catch surface-level errors but miss the things that matter most in high-stakes documents: inconsistent funder terminology, logic gaps between your narrative and your budget, formatting that doesn't match RFP instructions, and the subtle phrasing issues that make a proposal feel unpolished. I bring trained human judgment, and I understand what grant reviewers are actually looking for.

Ready to give your cause the
flawless communication it deserves?

Tell me about your project and I'll respond within two hours with a quote and turnaround time. No commitment required.

No file needed yet. I'll follow up within two hours.