Top 3 Google Sheets Extensions for Data Enrichment in Video Prospecting

Personalized video prospecting is one of the most effective ways to stand out in a crowded inbox. Tools like FFmpeg let you generate thousands of customized videos at scale, but the real challenge is getting accurate, enriched data to feed into those templates. That is where Google Sheets extensions come in: they turn a simple spreadsheet into a powerful prospecting database, ready to fuel your video pipeline.

Here are the three best Google Sheets add-ons for data enrichment in a video prospecting workflow.

1. Derrick — The All-in-One Enrichment Powerhouse

Derrick is the most complete Google Sheets extension for B2B data enrichment. It combines LinkedIn import, email and phone finding, AI-powered qualification, and data cleaning into a single add-on with zero learning curve.

Why Derrick stands out for video prospecting

• 100+ data points per lead and company, including first name, last name, job title, company name, location, and more. Every field you need to personalize an FFmpeg video template is available in one click.
• Email & Phone Finder to reach out after sending your personalized video, closing the loop between attention and conversion.
• AI enrichment with Claude and OpenAI built in. You can generate personalized icebreakers, segment leads, or summarize profiles directly in your sheet before feeding the data into your video pipeline.
• LinkedIn Sales Navigator import in one click. Build a targeted lead list and enrich it without ever leaving Google Sheets.
• GDPR compliant with real-time data from 15+ sources and no data storage on their end.
• Pricing starts free (200 credits/month, no credit card required), with paid plans from 9 EUR/month. Credits roll over, which is rare in this space.

Derrick is the best fit if you want a single tool that handles the entire enrichment chain, from finding leads to getting every data point you need for mass-personalized video outreach.

Install Derrick from Google Workspace Marketplace

2. Hunter for Sheets — The Email Specialist

Hunter is a well-established name in email finding, and their Google Sheets add-on brings that expertise directly into your spreadsheet. With over 55,000 installs, it is one of the most trusted extensions in the category.

Key features

• Domain Search: enter a company domain and get every publicly sourced email address associated with it, along with confidence scores.
• Email Finder: provide a first name, last name, and company name to find the corresponding professional email.
• Email Verifier: validate an entire column of email addresses in one click, with actionable deliverability statuses.

Where Hunter fits in a video workflow

Hunter excels at one thing: finding and verifying emails. If you already have lead names and companies from another source and just need verified email addresses to send your personalized videos, Hunter is a reliable and focused choice. However, it does not offer LinkedIn enrichment, phone numbers, or AI features, so you may need to combine it with other tools.

Free tier includes 25 searches and 50 verifications per month.

Install Hunter for Sheets from Google Workspace Marketplace

3. ContactSheets by ContactOut — The Formula-Based Approach

ContactSheets takes a different approach: instead of a sidebar or menu-driven workflow, you enrich data using spreadsheet formulas like =co_reveal() and =co_enrich(). This makes it easy to integrate into existing sheet templates.

Key features

• Reveal emails & phone numbers from LinkedIn profile URLs using a single formula.
• Profile enrichment returns name, title, company, domain, and location directly into adjacent cells.
• CRM integrations with HubSpot, Salesforce, and automation platforms like Zapier and Make.

Where ContactSheets fits in a video workflow

The formula-based approach can be handy if you are building a semi-automated spreadsheet that feeds directly into an FFmpeg script. You can design your sheet so that enrichment happens automatically as you paste LinkedIn URLs, and the output columns map directly to your video template variables. The downside is a smaller user base (559 installs) and fewer data points compared to Derrick.

Install ContactSheets from Google Workspace Marketplace

How This Fits Into an FFmpeg Video Prospecting Workflow

Once your Google Sheet is enriched with lead data, the next step is generating personalized videos at scale. A typical pipeline looks like this:

1. Enrich your leads in Google Sheets using one of the extensions above.
2. Export the sheet as CSV with columns like first name, company, job title, and any personalized text.
3. Run an FFmpeg script that reads each row and generates a unique video, overlaying the lead's name, company logo, or a custom message onto a base video template.
4. Send the videos via email (using the verified addresses from your enrichment step) or through LinkedIn messaging.

This approach lets a single salesperson produce hundreds of truly personalized videos per day, dramatically increasing response rates compared to generic outreach.

Quick Comparison

Sources

• Derrick App
• Hunter.io
• ContactOut