Addition is a venture capital and private equity firm that invests in founder-led, technology-enabled companies. The firm operates as an investment principal, deploying capital into high-growth technology businesses. Details on fund size, portfolio, and specific investment stages are not publicly disclosed in the available data. Signal Plug searches live against addition.com's mail server to find and verify email addresses for any Addition employee.
Signal Plug searches live against addition.com's mail server — not a static database. Get a verified email for any Addition employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
Addition is a venture capital and private equity firm that invests in founder-led, technology-enabled companies. The firm operates as an investment principal, deploying capital into high-growth technology businesses. Details on fund size, portfolio, and specific investment stages are not publicly disclosed in the available data.
The most commonly verified format at Addition:
Low ConfidenceSignal Plug tests all common patterns against Addition's live mail server and returns whichever passes the SMTP check.
Run a live search for Addition →Data-driven signals to help you prospect Addition effectively.
Primary Contact
Managing Partner
9–11am EST
Tech hub — decision-makers reachable
From 1 employees in 2020 to ~30 in 2026.
Signal Plug performs live SMTP verification against addition.com's mail server — not a static scraped database — which means results reflect the real, current state of Addition's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real Addition contacts before upgrading.
Enter the contact's name
Type the first and last name of the Addition employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use addition.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring Addition contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of Addition names in a single batch.
Addition competes directly with Tiger Global Management, Coatue Management, Insight Partners and others in the Financial Services space.
| Company | Size | Tier | Focus | Email Format |
|---|---|---|---|---|
| Addition | 11–50 | Startup | Venture Capital and Private Equity | firstname.lastname |
| Tiger Global Management | — | — | — | firstname.lastname |
| Coatue Management | — | — | — | firstname.lastname |
| Insight Partners | — | — | — | firstname.lastname |
| Dragoneer Investment Group | — | — | — | firstname.lastname |
| D1 Capital Partners | — | — | — | firstname.lastname |
Based on industry, headcount tier, and growth signals, these companies share a similar profile:
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Financial Services like Addition.
Based on Addition's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at addition.com. If you have a name and the domain, you can find a verified email.
How well Addition fits a typical B2B outbound pipeline, based on available signals.
Moderate Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against addition.com's mail server using SMTP verification. This means results reflect the current state of Addition's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which Addition contacts to email first and personalize your outreach before you hit send. Given Addition's startup footprint (11–50 employees), Growth plan users at $149/month get the search volume needed for a full account campaign. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against addition.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of Addition employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against addition.com in a single batch.
Addition is a venture capital and private equity firm that invests in founder-led, technology-enabled companies.
Addition focuses on founder-led, technology-enabled companies.
Addition is a private firm.
Venture Capital and Private Equity.
Signal Plug searches in real time against addition.com's mail server to find and verify email addresses for Addition employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month