Mainline builds your website, your app, your CRM, and the AI threading through them. Big Develop handles the work that sits on top — marketing, brand, content, social, consulting — plus the heavy enterprise software Mainline doesn't touch (ERP, fintech, regulated systems). Same operator, complementary stack.
How the two shops split the work
Most agencies sell either a website or marketing — never both, never connected. The split below is the whole point: one operator, two shops, no overlap, no awkward handoffs.
Mainline
The things customers actually log into and use. Sites starting at $600. Apps starting at $599. Pipeline CRM from $75/seat. AI woven through every surface.
Big Develop
The brand, the message, the traffic, the content, the strategy — plus the heavy enterprise software outside Mainline's lane.
Big Develop · the seven services
Pulled directly from bigdevelop.com/services. Web and apps stay on Mainline's flat-rate ladder — Big Develop picks up custom software when the build is enterprise-grade SaaS or a custom platform that can't fit a productized tier.
Pull the levers Mainline doesn't touch — SEO, paid search, email automation, conversion testing. Mainline ships the site; Big Develop sends qualified traffic to it.
Identity, voice, and visual system — the parts of the company a website can't fix on its own. Logos, color, typography, brand guidelines, customer-facing language.
Professional video, photography, graphics, and copywriting — the storytelling layer that runs across your site, social, and ad campaigns. Built in-house, not outsourced.
Strategy, content calendar, scheduling, and analytics across the major platforms. Combines tooling with the operators who actually run the accounts day-to-day.
Strategic growth guidance from people who have actually run companies — digital transformation roadmaps, go-to-market strategy, market entry, and executive advisory.
ERP systems and operational platforms beyond what a CRM covers. Inventory, supply chain, multi-entity ops, custom internal tools — the back-office software your team actually runs the company on.
Secure fintech builds — payments, lending, compliance, ledgers. Regulated environments, audit trails, real money moving through the system. Different requirements than a marketing site.
Enterprise-grade SaaS products, multi-tenant platforms, and custom APIs built for scale. When the build is bigger than Mainline's flat-rate app ladder — multi-month, custom architecture, dedicated team — it goes through Big Develop.
Which shop you're looking for
If you need a website built
→ Mainline
If you need an app built off the Mainline ladder ($599–$2,499)
→ Mainline
If you need a multi-tenant SaaS, public API, or custom platform at scale
→ Big Develop
If you need a CRM with AI in the workflow
→ Mainline · PipelineIQ
If you need traffic — SEO, Google ads, Meta ads
→ Big Develop
If you need a brand identity, logo, or voice system
→ Big Develop
If you need video production, photography, or copy
→ Big Develop
If you need social media run end-to-end
→ Big Develop
If you need executive strategy + advisory
→ Big Develop
If you need an ERP, fintech build, or regulated system
→ Big Develop
If you're not sure which side you're on
→ Tell Mainline · we route it
Tell Mainline what you're trying to do. If the work fits Mainline, we'll quote it on the first reply. If it's a marketing, brand, content, or consulting question, we'll route it to Big Develop — same person, different shop.