Startup Consultants London - Launch, Fund & Scale Faster
London is the busiest, most competitive place in the UK to build a startup, and the most expensive one to get wrong. It holds the largest concentration of founders, accelerators, angels and venture capital in Europe, but that density cuts both ways: investor attention is fierce to win, talent is costly to hire and keep, and the cost base in the capital punishes every avoidable mistake.
SGI Consultants is a London startup consultancy, based in Fulham, helping founders across the city validate their concept, build a fundable business, and scale without collapsing under their own growth.
We have advised 2,000+ businesses since 2014 and facilitated over £250M in client funding at a 90% funding success rate across managed engagements.
We work with London founders the way the work needs to be done: in person, where it helps, grounded in your numbers, and focused on getting you funded and growing rather than producing documents that sit unread.
A London startup consultancy, not a remote one
You can get startup advice over a video call from anywhere. There is a place for that, and we work remotely too. But London founders face specific conditions that benefit from advisors who know the ground: a funding market where dozens of credible startups chase the same investors, hiring competition that makes early team decisions unforgiving, and a cost base that shortens your runway faster than founders expect.
Our office is at 20 Dawes Road in Fulham, SW6. We meet founders in person across London, whether that is at our office, your workspace, or somewhere central, whenever a working session moves things along faster than a call.
We work with founders across the capital's ecosystem, from the tech cluster around Old Street and Shoreditch, through King's Cross and the fintech concentration in the City and Canary Wharf, to the creative and consumer founders across West, North, South and East London.
Who Delivers This Service
Your engagement is led by Kurt Graver, an Accountant and MBA, and founder of SGI Consultants, and supported by a qualified team of startup specialists. Kurt brings a 25-year business career spanning commerce, industry, and the public and third sectors, and personally oversees every engagement. SGI has supported 2,000+ businesses across 47+ industries.
Read more about Kurt's background and startup consulting approach →
Startup Success Track Record
When you engage startup consultants, results matter more than credentials. Our startup consulting methodology has been battle-tested across 12 years supporting UK founders from concept through Series B.
600+
600+ Companies Launched & Supported Since 2014
Average Time-to-Market Acceleration
Successful Exits Facilitated
Funding Success Rate
Our startup consulting clients include Cambridge University spin-outs, consumer brands securing nationwide retail distribution, and hundreds of first-time founders raising their first rounds. These are verified outcomes -- not aspirational claims.
Get Your Free Startup Assessment
Why startups fail, and how we prevent it
Most startup failures are not about bad ideas. They are about the poor execution of the funding process. After supporting 600+ startups, we have identified five critical mistakes that destroy funding applications: weak market validation (enthusiasm mistaken for demand), unrealistic financial projections (over-optimism funders spot immediately), inadequate competitive analysis (claiming "no competitors" destroys credibility), poor team positioning (investors back teams, not just ideas), and approaching investors without proper preparation. Our startup consulting addresses every one of them before you approach a single investor or lender.
The SGI Startup Consulting Methodology
Engineered for Growth, Not Just Advice
Our approach as startup consultants is built on 12+ years of supporting UK founders from concept through Series B. We don't offer generic advice—we operate as your strategic partner, applying our proprietary Business Success Formula to build the fundamentals investors underwrite and markets reward.
We stress-test every startup against this equation to ensure viability before you pitch:
Business Success = PM + (PS × (EO − (C+E+P+T)))
PM (Profitable Market): Is the market large enough, reachable, and willing to pay?
PS (Product/Service): Does the solution meet a genuine need with clear differentiation and Product-Market Fit?
EO (Engine Optimisation): Are your marketing, sales, operations, and financial management systems scalable?
External Threats (C+E+P+T): Have we mitigated risks regarding Competition, Economic shifts, Political changes, and Technology disruption?
By solving for these variables, we don't just hope for funding—we engineer your business to secure it.
Our comprehensive startup services
Each service can be engaged independently or combined into a programme spanning multiple phases.
Business Startup Planning and Formation
Complete foundation-building: legal structure with tax implications, branding strategy, market opportunity assessment, competitor intelligence, revenue model and pricing, operational infrastructure, technology stack, team and hiring roadmap, and a 12-month launch timeline. Learn more →
Business Concept Validation
Evidence-based validation through 20 to 30 customer discovery interviews, competitive analysis, market demand assessment, pricing sensitivity testing, value proposition refinement, ideal customer profile definition and an evidence-based go/no-go recommendation. Learn more →
Business Model Development
Revenue model design, value-based pricing, unit economics analysis (CAC, LTV, margins, payback), customer acquisition strategy, scalability assessment, three to five-year sustainability modelling and funding requirements tied to milestones. Learn more →
Investor Readiness Preparation
A 10 to 16-week programme: three-statement financial models, scenario analysis, key-metric dashboards, an institutional-grade pitch deck, an investment memorandum, a 100+ question due diligence bank, pitch coaching, and investor targeting and introductions. Learn more →
Product-Market Fit Validation
A 6 to 10 week validation: cohort retention analysis, organic-growth measurement, CAC/LTV economics, usage and activation analysis, the Sean Ellis PMF survey, segment-level fit scoring and a clear scale, pivot or persevere recommendation. Learn more →
Startup Strategy Consulting
A 6 to 12 week engagement: situation assessment, ICP definition, competitive differentiation, objectives and OKRs, North Star metric selection, a quarterly-priority roadmap, go-to-market alignment and organisation design for your stage. Learn more →
Business Funding Service
Facilitation across debt, equity, grants and hybrid, with investor-ready materials, introductions through our network, pitch coaching, due diligence support and negotiation guidance. Debt routes carry zero upfront fees, equity is success-aligned, and grants are fixed-fee. Learn more →
Business Mentoring for Founders
Monthly or fortnightly strategic sessions, email support, business model validation, fundraising strategy and introductions, organisational design and operational scaling guidance, for first-time and growth-stage founders. Learn more →
Package Comparison
Service | Investment From | Timeline | What's Included |
£800 | 4-6 weeks | • Customer problem validation • Market demand assessment • Competitive analysis • Business model viability testing • Go-to-market strategy • Clear proceed/pivot decision framework | |
£800 | 6-8 weeks | • Complete business model canvas • Unit economics validation (CAC, LTV) • Revenue model & pricing strategy • Scalability assessment • Competitive moat identification • Growth planning framework | |
£1,000 | 6-10 weeks | • Customer satisfaction & retention analysis • Usage & engagement metrics evaluation • NPS & referral rate assessment • Churn analysis & improvement plan • Growth trajectory validation • Scale-readiness determination | |
£800 | 8-12 weeks | • Market positioning & differentiation • Go-to-market strategy • Customer acquisition planning • Growth & expansion roadmap • Operational strategy • Strategic KPI framework | |
£900 | 10-16 weeks | • Business model assessment • Institutional-grade 3-statement financial model • Investor-grade pitch deck (12-15 slides) • Investment memorandum (25-35 pages) • Due diligence question bank (100+ answers) • Valuation guidance & investor targeting • Data room organisation | |
FREE (Lender-funded) | 2-8 weeks | • Access to 150+ specialist lenders • Business loans, asset finance, government schemes • Complete application management • Terms negotiation • Transaction coordination • No cost to your business | |
£250 + Success fee on completion | 6-8 months | • Intelligent investor targeting (A+ to Z grading) • Angel networks, VCs, Family Offices • Professional relationship management • Due diligence coordination • Term sheet negotiation • No-win, no-fee within 18 months | |
POA (Price on application) | 12-18 months | • Monthly strategic sessions (90 minutes) • Unlimited email support • Business model validation guidance • Fundraising strategy & investor intros • Ongoing accountability & strategic counsel | |
POA (Price on application) | 12-24 months | • Fortnightly strategic sessions (90 minutes) • Ad-hoc strategic advisory access • Organisational design & leadership development • Operational scaling guidance • Later-stage fundraising support | |
POA (Price on application) | 6-12 months | • Structured cohort learning • Expert mentorship sessions • Peer network development • Stage-specific or sector-specific focus • Accountability framework |
Who we work with
A comprehensive startup consultancy
Which Startup Service Is Right For You?
If you're validating an untested concept: → Business Concept Validation
If you're refining your business model: → Business Model Development
If you're questioning whether you're ready to scale: → Product-Market Fit Validation
If you're preparing to raise institutional capital: → Investor Readiness Preparation
If you need strategic clarity on how to compete: → Startup Strategy Consulting
If you're ready to secure funding: → Business Funding Service
If you want ongoing strategic guidance: → Business Mentoring
Not sure? Book a free diagnostic consultation below.
Proven Results Across The Ecosystem
We have helped over 2,000 businesses start and grow, working across the entire capital stack from bootstrapping to venture capital.





Get Your Free Startup Assessment
Most founders who attempt self-directed startup launches invest months -- sometimes years -- making predictable mistakes that experienced guidance would have prevented. Specialist consultancies limit you to their narrow expertise, forcing you to piece together advice from multiple providers as your startup evolves.
We deliver the complete solution: systematic validation, business model development, investor preparation, strategic roadmaps, and implementation support across every stage of your journey. With a verified 90% funding success rate across 2,000+ engagements and £250M+ secured, we are an experienced resource for you to access and drive your business forward.
Book a free 30-minute startup assessment. We will review your concept, identify the critical challenges to address first, and give you an honest view of what your startup needs to succeed. No obligation. No sales pressure. Just clear, expert guidance from the UK's most comprehensively experienced startup consulting team.
Frequently Asked Questions (FAQs)
Yes. We are based at 20 Dawes Road in Fulham, southwest London, and we regularly work with founders in person across the city as well as remotely. Early-stage work often benefits from sitting in a room together to pressure-test a concept, so in-person sessions are available to London founders throughout an engagement. Wherever you are in London, the service and the price are the same.
London is where most of the UK's investors, angel networks and startup infrastructure sit, and being on the ground means we understand how London funders and ecosystems actually work. An accelerator gives you a fixed programme and usually takes equity; a remote template service gives you documents without local context. We give you senior, London-aware guidance across the whole journey, for a fee rather than a slice of your company.
Yes. London concentrates the UK's venture capital, angel networks, accelerators and early-stage funds, from the tech cluster around Shoreditch and Old Street to fintech in the City and life sciences around King's Cross. We build your case around the specific funders and programmes relevant to your sector and stage, and we draw on our network of London angels, VCs and family offices for warm introductions. The plan is shaped by what London investors actually look for, not a generic template.
All of them. We support founders across Shoreditch and Old Street, the City, King's Cross, Canary Wharf, Stratford and Here East, Camden, Hackney and the outer boroughs, as well as the wider Greater London area. Our remote-capable model means your location within London never changes the service or the cost.
We work across every stage, including pre-seed. For London founders at the concept stage, the highest-value work is rigorous validation, testing your commercial assumptions through structured customer interviews and competitive analysis before you commit capital or give up equity. From there we support seed and Series A preparation and funding. Getting validation right early is, across our engagements, one of the best decisions a founder can make.
Yes, this is central to what we do for London founders. We make sure your fundamentals are defensible, build the institutional-grade documentation investors expect, and introduce you to our network of London angels, VCs and family offices. For UK angel rounds we facilitate EIS and SEIS advance assurance, which most founders overlook but which strongly affects how attractive your round is to London investors. Our 90% funding success rate is nearly double the national average.
Our startup services start from £800 for concept validation or business model development, and from £900 for investor-readiness preparation, with debt-funding facilitation carried at no upfront cost because it is lender-funded on success. Our pricing is the same whether you are in London or elsewhere; we do not add a London premium. By comparison, Big Four firms charge retainers in the tens of thousands, and freelance coaches charge by the session without producing the investor-grade outputs a round needs. See our pricing and competitive comparison page for detail.
No honest consultant can guarantee funding, and you should be wary of any who claim to, because outcomes depend on execution and market timing. What we commit to is investment-grade documentation, a proven methodology, and genuine introductions to London funders. Our 90% funding success rate, nearly double the national average, reflects the quality of that work and our clients' commitment to following the strategy.
Yes, it is one of our specialities, and London is the leading destination for founders on the Innovator Founder and Global Talent routes. We write Home Office-compliant business plans that also satisfy your endorsing body, working alongside immigration lawyers, and we advise on UK market entry, company structure and the introductions you need to get established in London. We understand the specific hurdles international founders face and help you avoid the common ones. See our visa business plans page for the detail.
London has no shortage of single-purpose providers: pitch-deck agencies, validation specialists, funding brokers and freelance coaches who advise by the session without producing the structural outputs investors need. Accelerators offer a fixed programme in exchange for equity. We cover the whole journey, from concept through funding and beyond, with senior consultants and investor-grade deliverables, for a fee rather than equity. You get end-to-end support from one London-based team instead of stitching several together.
We are London-based but work with founders across the whole UK, including Cambridge, Manchester, Edinburgh and Bristol, as well as international entrepreneurs. If you are searching specifically for startup consultants in London, you have a local team on your doorstep; if you are elsewhere, our remote model delivers exactly the same service. You can also see our full national service on our startup consultants page.

