Best proposal software for marketing agencies and retainer pitches

An agency proposal sells a monthly relationship, not a one-off job. The client wants to see that you understood their market, what you will do each month, what it costs in each package and when they can expect movement. Most agencies we talk to lose time in the same four places.

• Writing the situation and strategy from scratch. The audit and the discovery call are done, but turning them into a clear "where you are, where we take you" section still takes two to three hours per pitch.
• Rebuilding the retainer table. SEO at one level, paid media management with a percentage of spend, social content per post, a setup fee. Reps copy last month's table, change numbers and quote slightly different prices to similar clients.
• Waiting on the founder. In many agencies one person signs off every proposal because only they know the right wording and the right price. That person becomes the bottleneck.
• Chasing the client. You send a PDF and hear nothing for a week. Without knowing whether the marketing director opened it, the follow-up is a guess.

So the shortlist questions are simple. Does the tool write the first draft or only format it? Can the client choose a package and optional add-ons inside the proposal? Does the whole team quote from one price list? And what does it cost for five people, not one?

Prices are public list prices from each vendor's pricing page as we read them in October 2026, in USD, billed annually unless noted. Plans change often, so check before you buy.

The table leaves out add-ons such as API access, premium onboarding and payment processing fees, which several vendors charge separately.

ProposalCreation is built for the part of the pitch that eats the most hours. You paste the client brief, your audit notes or the call transcript, and the AI drafts the full proposal: cover page, executive summary in the client's terms, goals, strategy, monthly deliverables, timeline, a retainer pricing table with packages and optional add-ons, terms and a signature block. It writes in your agency voice because you upload two or three of your best past proposals once.

Growth at $74 a month billed annually includes five seats, a shared content library, three brand styles and HubSpot and Pipedrive sync, with 70 AI drafts a month. That covers most agencies of up to five people, and white label work gets its own brand style. See the full agency workflow on the social media marketing proposal page or start from the marketing proposal template.

The trade-off: there is no payment collection inside the proposal, and it is a proposal, quote and SOW tool rather than an agency management suite, so time tracking and invoicing stay in the tools you already run.

Qwilr turns a proposal into an interactive web page with video and rich blocks, which suits brand, web and creative agencies whose proposal is part of the portfolio. QwilrPay lets the client pay a deposit inside the page. Starter is $35 per user per month billed annually or $49 monthly; Growth is $55 per user, annual only, with a five seat minimum. We compare it in detail on our Qwilr alternative page.

Proposify has a long-established editor, approval workflows from its Grow plan and Salesforce plus single sign-on on Scale. Grow is $3,900 a year with five users included and $780 for each extra seat. It fits an agency of 15 or more with an account director who wants control over every proposal that leaves the building. Our Proposify alternative comparison covers it seat by seat.

PandaDoc is a broad document platform. If your agency sends proposals, MSAs, NDAs and onboarding questionnaires and wants one tool for all of them, it is a sensible pick. CRM integrations sit on the Business plan at $49 per seat per month billed annually.

Better Proposals is the low cost option for agencies that like writing their own proposals. Starter is $13 per user per month billed annually with 10 sends a month, and Premium at $21 adds CRM integrations, a custom domain and 50 sends a month.

Prospero is aimed at freelancers and small marketing shops, with ready-made content for SEO, social media management, web design and PPC proposals. It lists $19 a month on monthly billing and a lower price on annual billing, with unlimited proposals and e-signature.

Start with how many proposals you send and who writes them, then look at price per team rather than price per seat.

• Fewer than five pitches a month and the founder enjoys writing them: Better Proposals or Prospero keeps cost low.
• Five to 30 pitches a month and every one starts from a discovery call or an audit: choose a tool that drafts from the brief, because writing hours are your biggest cost. This is where ProposalCreation pays back fastest.
• Your proposal is a design piece and clients pay a deposit up front: Qwilr is built for that.
• 15 or more people with an approval step on every proposal: compare Proposify Scale and ProposalCreation Business on approvals, Salesforce sync and annual cost.

Once the retainer is signed, the next job is getting paid on time every month. Agencies with many retainers often add accounts receivable automation so overdue invoices are chased without the account manager writing awkward reminder emails.

A quick test before you commit: take the brief from your last real pitch, run it through each shortlisted tool and time how long it takes to reach a proposal you would actually send.

The subscription is the small number. The large one is senior time. If a retainer proposal takes three hours and your agency sends 15 a month, that is 45 hours of account director or founder time every month.

Hours saved assume three hours to write a retainer proposal from scratch and one hour to review and edit an AI draft. Time your own proposals before and after. All AI limits are on the ProposalCreation pricing page.

Most agencies start in Google Docs or Slides and move to a dedicated tool once they pitch every week. Common choices are Qwilr, Proposify, PandaDoc, Better Proposals and Prospero, plus AI-first tools like ProposalCreation that write the full proposal from the client brief and price it from a shared service catalog.

For a five person agency, list prices run from about $888 a year (ProposalCreation Growth with five seats included) to $3,900 a year (Proposify Grow). Per seat tools such as PandaDoc Business and Qwilr Growth land around $2,900 to $3,300 a year for five people.

Yes. AI can draft the situation, strategy, monthly deliverables, timeline and package pricing from your brief and audit notes in a few minutes. You still review the strategy, the promises and the price, because those are what the client is buying. The AI does not invent results or guarantee rankings and leads.

Show two or three packages with clear monthly deliverables, a one-time setup fee where relevant and optional add-ons the client can tick. For paid media, state whether the management fee is flat or a percentage of ad spend. Fixed monthly packages are easier to approve than hourly estimates.

Not legally, but it shortens the close. A signature in the same link the client reads removes the print, sign and scan step, and in the U.S. electronic signatures are legally binding under the ESIGN Act and UETA.