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


kurt graver

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

6-12 Months

Average Time-to-Market Acceleration

14

Successful Exits Facilitated

90%

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

Business Concept Validation

£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

Business Model Development

£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

Product-Market Fit Validation

£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

Startup Strategy Consulting

£800

8-12 weeks

• Market positioning & differentiation

• Go-to-market strategy

• Customer acquisition planning

• Growth & expansion roadmap

• Operational strategy

• Strategic KPI framework

Investor Readiness Preparation

£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

Business Funding Service - Debt

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

Business Funding Service - Equity

£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

Business Mentoring - Startup

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

Business Mentoring - Scale-Up

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

Group Mentoring Programmes

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


We are deliberately selective. We work best with first-time founders who want the truth rather than validation, serial entrepreneurs entering a new market or funding context, corporate professionals planning exits, tech startups preparing for seed or Series A, and international entrepreneurs entering the UK who need to access UK-specific funding such as Start Up Loans, Innovate UK and EIS/SEIS. We are probably not the right fit if you need quick document production without strategic input, or want validation for an idea you have already decided to pursue, regardless of the evidence.

A comprehensive startup consultancy


We cover every stage, from pre-seed concept through seed (£50K to £500K), Series A and growth (£500K to £5M) and scale-up and expansion. We prepare ventures for every funding context, including angel investment, EIS/SEIS, venture capital, government programmes, alternative finance, and traditional debt. And we work across 47+ industries, from technology and consumer brands to professional services, healthcare, hospitality and the creative industries. Every engagement is led by our in-house team of senior startup consultants, not outsourced to external specialists.

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.

Read Our Complete Case Studies and Track Record


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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.