Target Account List Builder Prompt

Help me define and prioritise a target account list for an ABM programme.

What we sell: [describe]
Our ICP (ideal customer profile): [describe firmographics — size, industry, geography, tech stack]
Our best current customers: [name 3–5 and what they have in common]
Competitors we often see: [list]
Average deal size: [approximate]

Please:
1. Define the top 5 criteria for an ideal target account
2. Create a scoring rubric (1–5) for each criterion
3. Suggest 5 data sources I can use to find accounts that match
4. Recommend how many accounts to start with and why
5. Define what 'Tier 1', 'Tier 2', and 'Tier 3' accounts should look like for my business