Northrow specialises exclusively in SEIS and EIS Advanced Assurance, helping early-stage companies secure HMRC approval before capital is raised
We work at the point where eligibility, narrative, and structure matter most — removing uncertainty for founders, investors, and professional advisers.
We handle the SEIS/EIS Advanced Assurance process end-to-end, including:
Initial eligibility assessment
Review of the company’s trade and growth plans
Preparation of the HMRC narrative and supporting materials
Submission of the Advanced Assurance application
Management of HMRC questions and follow-ups
Our scope is deliberately narrow.
We focus on one outcome: securing HMRC clearance with minimal risk.
Founders raising angel capital under SEIS or EIS
Accountants and fractional CFOs seeking specialist SEIS/EIS support
Solicitors who want eligibility risk addressed before documentation
Angel-backed startups where tax relief is critical to closing a round
Most engagements are first-time raises, but we also support follow-on rounds where structure needs to be future-proofed.
To keep risk low and outcomes clear, we do not provide:
General tax advice
Fundraising strategy or investor introductions
Legal drafting or company secretarial services
Ongoing advisory retainers
This allows us to remain focused, efficient, and accountable for the HMRC process itself.
Fixed-fee engagements
Defined scope agreed upfront
Clear timelines (typically 2–4 weeks, subject to HMRC)
Direct point of contact throughout the process
Where a company is not suitable for SEIS or EIS, we will say so early.
Northrow frequently works alongside accountants and solicitors as a specialist extension of their team.
We own the SEIS/EIS eligibility and HMRC narrative
You retain control of the wider client relationship
Clear lines of responsibility reduce downstream risk
Advisers refer to us because our specialist focus reduces their liability and streamlines HMRC submissions, while they retain the client relationship.
If you are considering SEIS or EIS — or want a view on eligibility before progressing — you can get in touch below.
Northrow SEIS & EIS is a specialist practice operated by Perobatesa Ltd, trading as Northrow.