The Tech Partner That Builds From MVP to
Series C.

Pre-seed and seed founders shipping their first MVP, Series A teams scaling past the founding-engineer phase, and Series B+ companies adding AI features or re-architecting for scale. We have shipped products for AI-native startups, B2B SaaS, vertical SaaS, FinTech, HealthTech, eCommerce, EdTech, and marketplaces. We do not work with idea-stage founders without funding or technical co-founder direction — the engagement requires someone on your side who can make product calls week-to-week.

Most MVP Sprints run $25,000 to $75,000 for an 8 to 12-week build. AI-native MVPs with LLM orchestration and custom models run $50,000 to $120,000. Dedicated teams start at roughly $8,000 to $14,000 per engineer per month depending on seniority and stack. Fractional CTO engagements run $3,000 to $8,000 per month. We provide a written, line-itemed estimate within 48 hours of a scoping call — no boilerplate ranges, no padded contingencies.

A focused MVP ships in 8 to 12 weeks. An AI-native MVP with LLM features, custom models, or data pipelines runs 10 to 16 weeks. Mobile MVPs (iOS + Android) run 10 to 14 weeks. We commit to a fixed timeline after a 1 to 2-week paid discovery and publish a weekly burndown so you and your investors always know what is at risk.

Yes. Our Fractional CTO engagement covers technical strategy, architecture review, hiring support for your first 1 to 3 engineers, AI roadmap definition, vendor selection, code quality oversight, and Series A diligence preparation. Engagements run 10 to 25 hours per month at $3,000 to $8,000 per month. The Fractional CTO and Startup Solution offerings work together — many of our clients use both, with strategic CTO oversight paired with hands-on engineering delivery.

Yes — this is core work for our team. We have a four-year dedicated AI engineering unit and we operate four production AI products of our own (AddWeb AI for LLM orchestration, La Liga Score Predictor for open-source ML, EcomSupport360 for eCommerce AI, WeWP for AI-driven WordPress hosting). When you hire us to build an AI startup, you are working with engineers who have shipped and operated production AI — for clients and for AddWeb itself. Most competing startup development agencies cannot point to a single AI product they own.

Yes. We ship with documentation, test coverage (80 percent for business logic, 95 percent for payment and security paths), CI/CD pipelines, observability dashboards, security scans, and an architecture decision log from day one. We have prepared founder codebases for Series A and Series B diligence — including remediation work on inherited codebases that previously failed diligence. We can also run a code audit as a standalone engagement before your next round.

We embed 2 to 8 engineers (plus PM, plus tech lead) into your team. Daily standups in your timezone where possible (US/EU overlap available), your Slack, your Linear or Jira, your GitHub. You get senior and mid-level engineers — never juniors as the primary builders. Teams run on 4-week minimum engagements with month-to-month renewal after the first quarter. Many of our startup clients run dedicated teams alongside their in-house team for surge capacity or specialized stacks (AI, mobile, DevOps).

Pivots are expected and built into how we work. Dedicated team engagements have month-to-month flexibility after the first quarter. Fixed-price MVP sprints can pause or re-scope between phases. We have helped founders pivot from B2C to B2B mid-build, swap underlying models when LLM economics changed, and refactor monoliths into services when scale demanded it. Flexibility is not a discount — it is a discipline we maintain through scope-locking, written change orders, and transparent burndown reporting.

You do. Full IP and code ownership transfer to you upon payment, with clear assignment language in our master services agreement. We assign all rights in deliverables, work product, and derivative work. Our standard MSA is investor-friendly and has been reviewed by multiple Series A diligence counsels without amendment. We sign NDAs before discovery if your product requires confidentiality.

We accept a partial-equity model on a case-by-case basis for select pre-seed and seed-stage founders building in our highest-conviction verticals (AI-native products, eCommerce, FinTech). This is not our default engagement model — most clients pay cash. Equity-inclusive deals require a longer discovery, a defined cash-equity blend, and standard Series A diligence-ready vesting and assignment language. Ask during the strategy call if this is relevant.

Frontend: React, Next.js, TypeScript, React Native, Flutter. Backend: Node.js, Python (Django, FastAPI), Laravel, Go for performance-critical services. AI/ML: PyTorch, scikit-learn, LangChain, LlamaIndex, OpenAI, Anthropic, Hugging Face, fine-tuned open-source models. Data: PostgreSQL, MongoDB, Redis, Snowflake, BigQuery. Infrastructure: AWS, Vercel, Google Cloud, Azure, Kubernetes, Docker, Terraform. We pick by product fit and your team’s ability to maintain it post-engagement — not by what we built last quarter.

Yes — one of our most common engagements. We start with a 1 to 2-week code and architecture audit, deliver a written rescue plan with risk ratings (technical debt, security, test coverage, dependency debt, code quality), and quote a recovery roadmap. We have inherited startup codebases from prior agencies, freelance developers, in-house teams that left, and offshore vendors who underdelivered. Most rescue engagements ship a working version of the product within 8 to 12 weeks of takeover.

Three differences. First, bench depth — we have 160+ engineers, so when your AI engineer is sick or your mobile lead is on leave, your timeline does not slip. Second, full-stack coverage — most boutiques specialize in one layer; we ship architecture, frontend, backend, AI, DevOps, QA, and design from one team. Third, legal entity — we are US-registered (Greenville, SC) with ISO 9001 and 27001 certification. Many startup founders need their dev partner to pass enterprise procurement reviews from their first enterprise customer. We do.

Four ways. First, see the four AI products AddWeb operates in production — AddWeb AI, La Liga Score Predictor, EcomSupport360, and WeWP — most competing startup-services agencies cannot point to a single product they own. Second, read our 74+ verified Clutch reviews. Third, see our G2 recognition (Best Mobile App Development Companies 2026) and DesignRush #1 Greenville ranking. Fourth, book a 30-minute strategy call where a senior engineer or our CTO gives you a free technical perspective on your product, codebase, or MVP scope. Most decisions get made off that call.