Free AI Public Data Research Brief Tool: Build Complete Prospect Briefs Without Paid Tools

The gap between "I don't have a paid data tool" and "I can't do good prospect research" is smaller than most reps think. A remarkable amount of the information that enables genuinely personalized outreach, specific buying signals, contact profile, company context, recent activity, is publicly available at no cost, discoverable with simple search techniques and about 15-20 minutes of focused time per prospect.

This guide covers how to build a complete prospect research brief using only free, publicly available sources. No Zoominfo, no LinkedIn Sales Navigator, no Crunchbase Pro. Just public information, organized into a format that makes your outreach meaningfully more specific than anything your prospects receive from reps who haven't done the research.

The Free Sources That Cover 80% of What You Need#

Free research sources fall into three categories: people information (understanding the contact), company information (understanding the business), and signal information (understanding what's happening right now). Each category has specific free sources that are reliably productive.

People information#

LinkedIn free tier: The most important free source for contact research. Check the contact's current title and how long they've been in it (tenure signals evaluation readiness, new hires are more open to evaluating vendors). Review their career history (patterns in their background reveal their preferences and blind spots). Check their recent activity: posts, comments, and articles from the last 60 days reveal current priorities better than anything else you can find about them. The free LinkedIn tier limits how many profiles you can view per day, so use it efficiently.

Company website team/leadership pages: Confirm the contact's role and title. Find other leadership team members who might be in the buying committee. Read the executive's bio for educational background, previous companies, and any stated priorities or focus areas.

Google name + company search: Conference talks, podcast appearances, quoted articles, and published content that reveal professional priorities. A 10-minute search often surfaces a podcast interview or conference talk that reveals exactly what the contact is focused on right now in a depth that no profile page captures.

Company information#

Crunchbase (free tier): Funding history, investor names, founding date, headquarters, employee count range. The free tier shows 5-10 credits per month for detailed views; use them for your most important accounts and use the public company pages for others.

Company website: Products, pricing structure, customer case studies (reveals the types of customers they have and the outcomes they care about), blog and content (reveals what their team is thinking about and the language they use), and job postings (reveals growth areas and strategic investments).

Google News + company name: Filter to last 30 days. Reveals press releases, funding announcements, product launches, partnership announcements, and any media coverage. Set a time filter immediately to avoid wading through years of old coverage when you're looking for what's happening now.

Signal information#

LinkedIn job postings: Not just "does this company have open positions" but the specific roles, the requirements mentioned in those roles (revealing tech stack and strategic priorities), and how many positions are being posted in relevant functions (revealing hiring velocity).

Google Alerts: Free, passive monitoring. Set an alert for the company name and for key people you're prospecting. Alerts deliver new mentions via email as they appear, surfacing signals you'd miss if you only actively searched.

Reddit and community forums: Subreddits related to your product category, the prospect's industry, or tools they use. Search for the company name or the contact's company name in relevant subreddits to find candid discussions about their situation, challenges, or tool evaluations.

The 20-Minute Research Process#

Research without a time limit expands to fill available time and produces diminishing returns after the first 15-20 minutes. Set a timer and follow this sequence:

1. Google "[Company] news" filtered to last month (3 minutes): What significant events have happened recently? Funding, product launches, leadership changes, partnerships. Log anything relevant.
2. Crunchbase company page (2 minutes): Funding history, employee count, investors. Just the factual foundation.
3. LinkedIn company page (3 minutes): Employee count, recent company posts (sorted by Recent, not Recommended), current job openings in relevant functions.
4. LinkedIn contact profile (4-5 minutes): Title and tenure, career history, recent activity (posts, comments, articles from last 60 days). This is where you find the most specific personalization hooks.
5. Google "[Contact name] [Topic relevant to your product]" (2 minutes): Conference appearances, podcast episodes, quoted articles. Often surfaces the most current, specific context about their priorities.
6. Brief compilation (3-5 minutes): Organize what you found into the six required fields (company snapshot, contact profile, signals, personalization hooks, priority score, recommended outreach approach).

What a Good Public Data Brief Contains#

The output of 20 minutes of public research should be a brief with six sections:

Company snapshot: 2-3 sentences: what the company does, their size and growth stage, and any notable recent business context. Enough to understand the company without a deep dive.

Contact profile: 3-4 sentences: their role and how long they've been in it, relevant career context, and what their recent activity suggests about current priorities.

Signals found: Every specific buying signal discovered in the research, with source and date. Even weak signals count, a single relevant job posting is worth noting even if it's not a strong buying signal alone.

Personalization hooks: 3-5 specific, sourceable details that are unique to this prospect. "Their CFO joined 8 weeks ago from [Company], which usually means a vendor evaluation period." "Their most recent LinkedIn post referenced 'building outbound from scratch.'" Each hook should be specific enough that the prospect would recognize it applies only to them.

Priority score: Based on ICP fit and signal strength, a combined priority score that tells you how urgently this prospect should receive outreach versus sitting in a monitoring queue.

Recommended outreach: The specific hook to lead with, the channel to use first, and a 1-2 sentence opener they can use directly in their first message. This bridges from research to action and ensures the research translates into outreach immediately rather than sitting in a folder.

When Public Data Isn't Enough#

There are accounts and contacts where public data is genuinely insufficient: private companies with minimal web presence, contacts who don't use LinkedIn actively, organizations in industries with little media coverage. In these cases, you have three options: lighter personalization (use what you can find rather than what you wish you could find), indirect research (find signals about the industry or company type that apply contextually to this company), or invest in a paid tool for accounts where the deal size justifies it.

The 80/20 reality: most accounts have enough public information to build a useful brief with the free sources described here. The accounts that genuinely don't are the minority. Start with free sources for every account, add paid tools selectively for the accounts where the return justifies the cost.

For teams looking to scale this research process beyond what manual methods can sustain, River's Sales workspace and River's AI Lead Finder automate the public data research process, scanning all six source categories and compiling the brief automatically, so the 20-minute manual process takes 5 minutes of review instead.