Your Boston Growth Partner

Boston, MA, USA

Few markets are as demanding as Boston. Between the life sciences cluster in Kendall Square, the hospitals and research institutions of the Longwood Medical Area, and the startups filling the Seaport innovation district, buyers here are sophisticated, skeptical, and data-driven. Marketing that leans on hype does not survive in a city built by universities like Harvard, MIT, and BU. Cosmo helps Boston brands grow with strategy and in-house execution under one roof. We pair performance marketing, brand strategy, content, and web development with a development team that ships changes same-day, so your campaigns improve in real time instead of waiting on a third party. From biotech and digital health to fintech and B2B SaaS along the Route 128 corridor, we build full-funnel growth systems tuned to how Boston audiences actually evaluate and buy. We are headquartered in Austin and serve Boston brands nationally, with dedicated account management and Eastern-time availability throughout.

At a Glance

Campaigns Delivered
250+
Monthly Ad Budget Managed
$500K+
Team Size
40+ specialists
Countries Served
12+

Trusted By

Enterprise-Grade Partnerships

Brands in Boston and beyond trust Cosmo to deliver measurable growth.

KPMG logo
PwC logo
JLR logo
Jaguar logo
Acre AI logo
ExpedReview logo

Our portfolio includes Jaguar Land Rover, PwC, KPMG, Boots, Concentrix and high-growth brands across multiple industries.

Full-Service Capabilities

Services in Boston

Every capability you need to dominate your market in Boston. One team. No outsourcing.

Local Landing Pages

Industry Marketing in Boston

Targeted Boston pages for the industries and services we know best.

Industry Expertise

Verticals We Serve

Deep expertise across the industries that define Boston's economy.

Common Questions

Marketing in Boston: FAQs

What Boston businesses ask us most.

Yes. We are headquartered in Austin and serve Boston brands nationally. You get a dedicated account manager, real-time Slack communication, weekly performance reporting, and full Eastern-time availability. Our in-house development team means implementation changes ship same-day, so working with us feels closer than most local agencies, without the overhead of a physical office in the market.

We focus on the sectors that define the Boston economy: life sciences and biotech around the Kendall Square and Cambridge cluster, digital health and healthcare tied to the Longwood Medical Area, fintech, and B2B SaaS across the Route 128 corridor and Seaport. We build industry-specific growth systems rather than generic playbooks, because a clinical-trial recruiter and a Series B SaaS company need very different funnels.

Most agencies hand execution to freelancers or subcontractors, which slows everything down. We keep strategy, performance marketing, creative, content, and web development in-house under one roof, and our dev team ships changes same-day instead of next sprint. Boston buyers expect rigor and proof, so we run on measurable results and full-funnel ownership rather than retainers that drift.

Let's grow your business in Boston.

One conversation is all it takes to start building something extraordinary.