MASON (Sites by Mason) is a Los Angeles, California-based Webflow and Squarespace design and development agency founded in 2017. The agency is a Webflow Premium Partner since February 2021, specializing in custom Webflow websites for individuals and businesses across diverse industries. MASON’s team of Webflow experts, designers, and marketing strategists delivers design, development, launch, and ongoing management for scalable, modern websites. [Cross-checked: company website, Webflow partner profile, LinkedIn, August 2026]
Webflow design & development, Squarespace, maintenance, SEO
Pricing Signal
Projects from $4,500 [Cross-checked: Webflow]
Vetted Status
Community (seed listing)
Evidence Summary
This listing draws on the provider’s public website (sitesbymason.com), Webflow partner profile (webflow.com/@sitesbymason), and LinkedIn company page (Mason Collective LLC). Webflow Premium Partner status, February 2021 partner date, and Los Angeles location are documented on the Webflow directory. Founding year and team size on LinkedIn. Named clients and testimonials on the company website are provider-stated. The provider has not claimed this listing. [Cross-checked: Webflow, LinkedIn, company website, August 2026]
Sources, evidence, services, PSI and FAQ
Services and Capabilities
MASON reports the following service lines [Cross-checked: company website, Webflow profile, August 2026]:
Webflow Design & Development — Custom sites built “div by div,” scalable and intuitive
Squarespace — Custom Squarespace builds for simpler, intuitive sites
SEO Optimization — On-page and technical optimization
Website Management — Hosting, content updates, support, and consulting
Development Partner — Builds for agency/in-house designs from Figma and Adobe XD
Use Cases and Workflow Scope
Use Case
Description
Platform
ML company site
Website aligned with intelligent products (Compound Eye)
Webflow
Design agency site
Artistic presence for a design agency
Webflow
Sports insurance
Intuitive experience for sports insurance (Players Health)
Webflow
Fintech campaign
Campaign site for creator business app (Lumanu)
Webflow
Production studio
Visual storytelling for production studio (Irish Cowboy)
Webflow
Industries Served
MASON works across real estate (Ethos Real Estate), luxury home building (Morrow & Morrow), sports insurance (Players Health), fintech (Lumanu), energy infrastructure (ARG Energy), production (Irish Cowboy Productions), and consumer brands (Grubhub, SweeTarts, Molina Healthcare, NASM). [Cross-checked from company website, August 2026]
Notable Clients
Published and provider-stated clients include Grubhub, SweeTarts, Molina Healthcare, NASM, Irish Cowboy Productions (Netflix), Players Health, Lumanu, Ethos Real Estate, Morrow & Morrow, ARG Energy, and Intern Queen. These should be treated as provider-stated. [Source: sitesbymason.com, August 2026]
Recorded Integrations / Tech Stack
Category
Technologies
Design & Development
Webflow (Premium Partner), Squarespace
Development stacks
Shopify, WordPress (expertise)
Design tools
Figma, Adobe XD
Services
SEO, hosting, maintenance, email marketing
Coverage and Engagement Model
Based in Los Angeles, California, with remote, global delivery. Service Coverage: Global / Worldwide. Work Mode: Remote. MASON works as a design and development partner, including building from designs provided by in-house teams and other agencies. [Cross-checked: company website, Webflow, August 2026]
Pricing and Engagement Model
Per the Webflow partner profile, projects start at $4,500. [Cross-checked: webflow.com/@sitesbymason, August 2026]
Certifications and Compliance
Partner Status: Webflow Premium Partner (since February 2021).
[Data not publicly stated: compliance certifications beyond the Webflow partner tier were not referenced in publicly reviewed sources as of August 2026.]
Data Card
Provider Name
MASON
Provider Type
Agency
Canonical Website
sitesbymason.com
Headquarters
Los Angeles, California, United States
Service Coverage
Global / Worldwide
Work Mode
Remote
Timezone
PT
Listing Type
Agency
Founded
2017
Team Size
2-10 employees
Industry
Real Estate, Sports, Fintech, Consumer
Platforms
Webflow
Pricing
From $4,500
Notable Clients
Grubhub, SweeTarts, NASM, Players Health (provider-stated)
Vetted Status
Community (seed listing)
Data Confidence
Moderate
Latest Verification Date
August 2026
Provider Satisfaction Index (PSI)
PSI: insufficient data (minimum 10 reviews required). As a seed listing, MASON has not yet accumulated enough verified FlowVetted client reviews to calculate a PSI score. Once 10 or more verified reviews are published, the PSI will be calculated as the weighted sum of four axes: Delivery Quality (×0.35), Communication (×0.25), Value (×0.25), and Reliability (×0.15).
External Ratings
The following information is from third-party platforms for informational reference only. It is NOT part of FlowVetted’s Provider Satisfaction Index and is NOT included in PSI calculations or structured schema markup.
No external rating data (e.g. Clutch, Google) was located for MASON as of August 2026. Client testimonials appear on the company website and Webflow profile.
Best Fit For
Brands wanting custom Webflow sites built for scale
Companies needing ongoing website management and support
Agencies and in-house teams wanting a Webflow development partner
Businesses comparing Webflow vs Squarespace for their presence
Summary Dataset
Field
Value
Provider
MASON
Type
Agency
Platforms
Webflow
Service Coverage
Global / Worldwide
Work Mode
Remote
Pricing
From $4,500
Year Founded
2017
Team Size
2-10
Certifications
Webflow Premium Partner
PSI
Insufficient data
Vetted Status
Community (seed listing)
Data Date
August 2026
Methodology and Sources
Data recorded, standardized, and verified by FlowVetted.
Provider website (sitesbymason.com) — primary source for services and clients
Webflow partner profile (webflow.com/@sitesbymason) — Premium Partner status and location
LinkedIn (Mason Collective LLC) — founding year and team size
Verification date: August 2026. Next review: August 2027 or upon provider claim.
Claim This Listing / Request Removal
This listing is unclaimed. If you represent MASON, you may claim this profile to verify or update the information. To request removal, contact FlowVetted via the inquiry form.
FAQ
What services does MASON offer?
Webflow design and development, Squarespace sites, SEO optimization, website management, and development partner services for agency and in-house designs. [Cross-checked from sitesbymason.com]
Is MASON a certified Webflow partner?
Yes. Webflow Premium Partner since February 2021. [Cross-checked: webflow.com/@sitesbymason, August 2026]
Where is MASON based?
Los Angeles, California, with remote, global delivery. [Cross-checked from Webflow, August 2026]
Is MASON an automation or AI provider?
No. MASON is a Webflow and Squarespace design and development agency. [Cross-checked from company website, August 2026]
How much does MASON cost?
Projects start at $4,500 per its Webflow partner profile. [Cross-checked from Webflow, August 2026]
Who does MASON work with?
Individuals and companies across real estate, sports insurance, fintech, energy, and consumer brands. [Cross-checked from company website, August 2026]
PSI (out of 10) = (Delivery×0.35 + Communication×0.25 + Value×0.25 + Reliability×0.15) × 2. Averaged from reviews. Published only after at least 10 ratings.
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